9,816 results match your criteria European Radiology [Journal]


Improved prediction of incident vertebral fractures using opportunistic QCT compared to DXA.

Eur Radiol 2019 Feb 21. Epub 2019 Feb 21.

Department of Neuroradiology, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.

Objectives: To compare opportunistic quantitative CT (QCT) with dual energy X-ray absorptiometry (DXA) in their ability to predict incident vertebral fractures.

Methods: We included 84 patients aged 50 years and older, who had routine CT including the lumbar spine and DXA within a 12-month period (baseline) as well as follow-up imaging after at least 12 months or who sustained an incident vertebral fracture documented earlier. Patients with bone disorders aside from osteoporosis were excluded. Read More

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http://dx.doi.org/10.1007/s00330-019-06018-wDOI Listing
February 2019

Clinical usefulness of right ventricular 3D area strain in the assessment of treatment effects of balloon pulmonary angioplasty in chronic thromboembolic pulmonary hypertension: comparison with 2D feature-tracking MRI.

Eur Radiol 2019 Feb 21. Epub 2019 Feb 21.

Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku Fukuoka-shi, Fukuoka, Japan.

Objectives: To evaluate the usefulness of right ventricular (RV) area strain analysis via cardiac MRI (CMRI) as a tool for assessing the treatment effects of balloon pulmonary angioplasty (BPA) in inoperable chronic thromboembolic pulmonary hypertension (CTEPH), RV area strain was compared to two-dimensional (2D) strain with feature-tracking MRI (FTMRI) before and after BPA.

Methods: We retrospectively analyzed 21 CTEPH patients who underwent BPA. End-systolic global area strain (GAS), longitudinal strain (LS), circumferential strain (CS), and radial strain (RS) were measured before and after BPA. Read More

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http://dx.doi.org/10.1007/s00330-019-6008-3DOI Listing
February 2019

Can cone-beam CT tumor blood volume predicts the response to chemoembolization of colorectal liver metastases? Results of an observational study.

Eur Radiol 2019 Feb 20. Epub 2019 Feb 20.

INSERM U970, Paris, France.

Purpose: To determine whether intraprocedural C-arm cone-beam CT (CBCT) parenchymal blood volume (PBV) can predict the response of colorectal cancer liver metastases (CRCLM) 2 months after irinotecan drug-eluting bead (DEBIRI) chemoembolization.

Materials And Methods: This single-center observational study was compliant with the Helsinki Declaration and approved by our institutional review board. Thirty-four consecutive CRCLM patients referred for DEBIRI chemoembolization were enrolled between March 2015 and December 2016. Read More

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http://dx.doi.org/10.1007/s00330-019-6007-4DOI Listing
February 2019

Problematic lesions in cirrhotic liver mimicking hepatocellular carcinoma.

Eur Radiol 2019 Feb 20. Epub 2019 Feb 20.

Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.

Hepatocellular carcinoma (HCC) is a unique malignancy that can be diagnosed and treated based on non-invasive imaging criteria without histological confirmation in cirrhotic patients, which opens the possibility, although rare, of false-positive diagnosis of the tumor. This brief review illustrates benign and non-HCC malignant lesions arising in cirrhotic liver that could have been erroneously diagnosed as HCC based on imaging criteria: focal nodular hyperplasia-like nodules, serum amyloid A-positive nodules, dysplastic nodules, spontaneously regressing lesions, combined hepatocellular-cholangiocarcinoma, cholangiocarcinoma, sarcomatoid carcinoma, lymphoepithelioma-like carcinoma, hepatoblastoma, and metastatic adenocarcinoma. To determine the potential differences in clinical courses and post-treatment outcome of HCC diagnosed by imaging alone and those histologically, we suggest the terms HCCi and HCCp to distinguish between lesions that are diagnosed as HCC based on imaging alone from those diagnosed based on pathological examination, respectively. Read More

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http://dx.doi.org/10.1007/s00330-019-06030-0DOI Listing
February 2019

Inter-platform reproducibility of ultrasonic attenuation and backscatter coefficients in assessing NAFLD.

Eur Radiol 2019 Feb 19. Epub 2019 Feb 19.

Bioacoustics Research Laboratory, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, 306 North Wright Street, Urbana, IL, 61801, USA.

Objectives: To assess inter-platform reproducibility of ultrasonic attenuation coefficient (AC) and backscatter coefficient (BSC) estimates in adults with known/suspected nonalcoholic fatty liver disease (NAFLD).

Methods: This HIPAA-compliant prospective study was approved by an institutional review board; informed consent was obtained. Participants with known/suspected NAFLD were recruited and underwent same-day liver examinations with clinical ultrasound scanner platforms from two manufacturers. Read More

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http://dx.doi.org/10.1007/s00330-019-06035-9DOI Listing
February 2019

Correction to: Ultrashort time-to-echo quantitative magnetic resonance imaging of the triangular fibrocartilage: differences in position.

Eur Radiol 2019 Feb 19. Epub 2019 Feb 19.

Department of Radiology, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.

The original version of this article, published on 03 September 2018, unfortunately contained a mistake. Read More

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http://dx.doi.org/10.1007/s00330-019-06031-zDOI Listing
February 2019

Core-needle biopsy in thyroid nodules: performance, accuracy, and complications.

Eur Radiol 2019 Feb 19. Epub 2019 Feb 19.

University of the Basque Country (UPV/EHU), Leioa, Spain.

Objective: To evaluate the performance of core-needle biopsy (CNB) in thyroid using a cohort of patients in which it was used as first choice.

Methods: Our institutional review board approved this retrospective study. We reviewed all CNB performed in our center over a period of 11 years. Read More

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http://link.springer.com/10.1007/s00330-019-06038-6
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http://dx.doi.org/10.1007/s00330-019-06038-6DOI Listing
February 2019
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Age-dependent diagnostic accuracy of clinical scoring systems and D-dimer levels in the diagnosis of pulmonary embolism with computed tomography pulmonary angiography (CTPA).

Eur Radiol 2019 Feb 19. Epub 2019 Feb 19.

Klinik und Hochschulambulanz für Radiologie, Charité - Universitätsmedizin Berlin Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Germany.

Objective: The aim of this study was to compare the age-dependent diagnostic performance of clinical scores and D-dimer testing to identify patients with suspected pulmonary embolism (PE).

Methods: Consecutive patients with suspected PE referred from the emergency department for computed tomography pulmonary angiography (CTPA) were retrospectively evaluated. Diagnostic scores (classic Wells score (WS), modified WS, simplified WS, revised Geneva score (GS), simplified GS, and YEARS score) were calculated from medical records. Read More

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http://dx.doi.org/10.1007/s00330-019-06039-5DOI Listing
February 2019

Potential of a machine-learning model for dose optimization in CT quality assurance.

Eur Radiol 2019 Feb 19. Epub 2019 Feb 19.

Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Dusseldorf, Germany.

Objectives: To evaluate machine learning (ML) to detect chest CT examinations with dose optimization potential for quality assurance in a retrospective, cross-sectional study.

Methods: Three thousand one hundred ninety-nine CT chest examinations were used for training and testing of the feed-forward, single hidden layer neural network (January 2016-December 2017, 60% male, 62 ± 15 years, 80/20 split). The model was optimized and trained to predict the volumetric computed tomography dose index (CTDI) based on scan patient metrics (scanner, study description, protocol, patient age, sex, and water-equivalent diameter (D)). Read More

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http://dx.doi.org/10.1007/s00330-019-6013-6DOI Listing
February 2019

Two sequential applications of high-intensity focused ultrasound (HIFU) ablation for large benign thyroid nodules.

Eur Radiol 2019 Feb 18. Epub 2019 Feb 18.

Department of Radiology, The University of Hong Kong, Hong Kong SAR, China.

Objective: High-intensity focused ultrasound (HIFU) ablation is a promising treatment for benign thyroid nodules but single application is less effective in larger-sized nodules. We aimed to assess the efficacy and safety of two sequential applications in larger-sized nodules.

Methods: Fifty patients underwent ablation of a large-sized nodule (baseline volume ≥ 20 mL and diameter ≤ 50 mm). Read More

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http://dx.doi.org/10.1007/s00330-019-06021-1DOI Listing
February 2019

Identifying EGFR mutations in lung adenocarcinoma by noninvasive imaging using radiomics features and random forest modeling.

Eur Radiol 2019 Feb 18. Epub 2019 Feb 18.

Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241 Huaihai Road, Shanghai, 200030, China.

Objectives: The tyrosine kinase inhibitor (TKI)-sensitive mutations of the epidermal growth factor receptor (EGFR) gene is essential in the treatment of lung adenocarcinoma. To overcome the difficulty of EGFR gene test in situations where surgery and biopsy samples are too risky to obtain, we tried a noninvasive imaging method using radiomics features and random forest models.

Methods: Five hundred three lung adenocarcinoma patients who received surgery-based treatment were included in this study. Read More

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http://link.springer.com/10.1007/s00330-019-06024-y
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http://dx.doi.org/10.1007/s00330-019-06024-yDOI Listing
February 2019
3 Reads

Quantification of myocardial deformation by deformable registration-based analysis of cine MRI: validation with tagged CMR.

Eur Radiol 2019 Feb 15. Epub 2019 Feb 15.

Department of Medical Imaging, University Health Network, 1 PMB-273, 585 University Avenue, Toronto, Ontario, M5G 2N2, Canada.

Objectives: To validate deformable registration algorithms (DRAs) for cine balanced steady-state free precession (bSSFP) assessment of global longitudinal strain (GLS) and global circumferential strain (GCS) using harmonic phase (HARP) cardiovascular magnetic resonance as standard of reference (SoR).

Methods: Seventeen patients and 17 volunteers underwent short axis stack and 2-/4-chamber cine bSSFP imaging with matching slice long-axis and mid-ventricular spatial modulation of magnetization (SPAMM) myocardial tagging. Inverse DRA was applied on bSSFP data for assessment of GLS and GCS while myocardial tagging was processed using HARP. Read More

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http://dx.doi.org/10.1007/s00330-019-06019-9DOI Listing
February 2019

A new automated method to evaluate 2D mammographic breast density according to BI-RADS® Atlas Fifth Edition recommendations.

Eur Radiol 2019 Feb 15. Epub 2019 Feb 15.

Imaging Department, Gustave Roussy, 114 rue Edouard Vaillant, 94800, Villejuif, France.

Objectives: Radiologists' visual assessment of breast mammographic density (BMD) is subject to inter-observer variability. We aimed to develop and validate a new automated software tool mimicking expert radiologists' consensus assessments of 2D BMD, as per BI-RADS V recommendations.

Methods: The software algorithm was developed using a concept of Manhattan distance to compare a patient's mammographic image to reference mammograms with an assigned BMD category. Read More

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http://dx.doi.org/10.1007/s00330-019-06016-yDOI Listing
February 2019
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Radiomics in multiple sclerosis and neuromyelitis optica spectrum disorder.

Eur Radiol 2019 Feb 15. Epub 2019 Feb 15.

Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China.

Objective: To develop and validate an individual radiomics nomogram for differential diagnosis between multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD).

Methods: We retrospectively collected 67 MS and 68 NMOSD with spinal cord lesions as a primary cohort and prospectively recruited 28 MS and 26 NMOSD patients as a validation cohort. Radiomic features were extracted from the spinal cord lesions. Read More

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http://dx.doi.org/10.1007/s00330-019-06026-wDOI Listing
February 2019
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A "one-stop-shop" 4D CTA protocol using 320-row CT for advanced imaging in acute ischemic stroke: a technical note.

Eur Radiol 2019 Feb 15. Epub 2019 Feb 15.

Service d'Imagerie Médicale, CHU de la Cavale Blanche, Boulevard Tanguy Prigent, 29609, Brest Cedex, France.

This technical note describes a novel CT scan protocol that includes a non-enhanced CT, dynamic CTA, and perfusion of the whole brain and CTA of the carotid arteries using a 320-row area detector CT scanner, with a unique contrast injection and acceptable radiation exposure dose in patients presenting with acute ischemic stroke. The acquisition parameters and reconstruction parameters will be discussed including the use of model-based iterative reconstruction (MBIR), time summing (tMIP), and subtraction techniques to optimize the results of this protocol.Key Points• Scanning on a 320-row area detector CT can achieve both brain perfusion with dynamic angiography and reconstructed arterial and venous CTA, and supra aortic trunk angiography, in a single acquisition. Read More

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http://dx.doi.org/10.1007/s00330-019-06041-xDOI Listing
February 2019
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Preoperative radiomics nomogram for microvascular invasion prediction in hepatocellular carcinoma using contrast-enhanced CT.

Eur Radiol 2019 Feb 15. Epub 2019 Feb 15.

Key Laboratory of Molecular Imaging, Chinese Academy of Sciences, Beijing, People's Republic of China.

Objectives: To develop and validate a radiomics nomogram for preoperative prediction of microvascular invasion (MVI) in patients with hepatocellular carcinoma (HCC).

Methods: The study included 157 patients with histologically confirmed HCC with or without MVI, and 110 patients were allocated to the training dataset and 47 to the validation dataset. Baseline clinical factor (CF) data were collected from our medical records, and radiomics features were extracted from the artery phase (AP), portal venous phase (PVP) and delay phase (DP) of preoperatively acquired CT in all patients. Read More

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http://link.springer.com/10.1007/s00330-018-5985-y
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http://dx.doi.org/10.1007/s00330-018-5985-yDOI Listing
February 2019
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Whole tumor ablation of locally recurred hepatocellular carcinoma including retained iodized oil after transarterial chemoembolization improves progression-free survival.

Eur Radiol 2019 Feb 15. Epub 2019 Feb 15.

Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea.

Objectives: To evaluate and compare clinical outcomes of two different radiofrequency ablation (RFA) methods for locally recurred hepatocellular carcinoma (LrHCC) after locoregional treatment.

Methods: Our institutional review board approved this study with a waiver of informed consent. A total of 313 patients previously treated with transarterial chemoembolization (TACE) (n = 167) and RFA (n = 146) with a single LrHCC ≤ 3 cm was included from five tertiary referral hospitals. Read More

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http://dx.doi.org/10.1007/s00330-018-5993-yDOI Listing
February 2019

Comparison of CT angiography collaterals for predicting target perfusion profile and clinical outcome in patients with acute ischemic stroke.

Eur Radiol 2019 Feb 14. Epub 2019 Feb 14.

Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, No.300 Guangzhou Road, Gulou district, Nanjing, Jiangsu Province, China.

Objectives: To compare collateral status on single-phase CT angiography (sCTA) and multiphase CT angiography (mCTA) and their ability to predict a target mismatch on CT perfusion (CTP) and clinical outcome in patients with acute ischemic stroke (AIS).

Methods: Seventy-three AIS patients with stroke onset between 5 and 15 h or with unclear onset time and occlusions in the M1/M2 segment of the middle cerebral artery and/or intracranial internal carotid artery underwent head non-contrast CT and CTP. Simulated sCTA and mCTA were reconstructed from CTP data and were compared for collaterals assessment. Read More

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http://dx.doi.org/10.1007/s00330-019-06027-9DOI Listing
February 2019
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Imaging features of SMARCA4-deficient thoracic sarcomas: a multi-centric study of 21 patients.

Eur Radiol 2019 Feb 14. Epub 2019 Feb 14.

Department of Radiology, Institut Bergonié, Comprehensive Cancer Center, 229, cours de l'Argonne, F-33000, Bordeaux, France.

Objectives: SMARCA4-deficient thoracic sarcoma (SMARCA4-DTS) is a recently identified aggressive subtype of sarcoma. The aim of this study was to characterize the CT imaging features of SMARCA4-DTS.

Methods: From June 2011 to May 2017, 21 adult patients with histologically proven SMARCA4-DTS were identified in the radiological database of 2 French sarcoma reference centers with at least one chest CT scan available. Read More

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http://dx.doi.org/10.1007/s00330-019-06017-xDOI Listing
February 2019
2 Reads

FLAIR vascular hyperintensity in acute stroke is associated with collateralization and functional outcome.

Eur Radiol 2019 Feb 14. Epub 2019 Feb 14.

Department of Radiology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, 210006, China.

Purpose: Fluid-attenuated inversion recovery vascular hyperintensity (FVH) is frequently found in stroke patients after intracranial arterial occlusion, but the prognostic value of FVH findings is unclear. We assessed whether FVH is associated with cerebral collateral status and functional outcome in patients with acute stroke patients receiving endovascular therapy.

Methods: FVH score, American Society of Interventional and Therapeutic Neuroradiology (ASITN) grade, the functional outcome at 3 months (modified Rankin Scale (mRS)), and other clinical data were collected for 37 acute stroke patients with large vessel occlusion (LVO) receiving MRI before and after endovascular therapy. Read More

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http://dx.doi.org/10.1007/s00330-019-06022-0DOI Listing
February 2019
1 Read

Added value of apparent diffusion coefficient in distinguishing between serous and mucin-producing pancreatic cystic neoplasms.

Eur Radiol 2019 Feb 14. Epub 2019 Feb 14.

Russell H. Morgan Department of Radiology and Radiological Sciences, Central Radiology, Johns Hopkins University School of Medicine, 600 N Wolfe St, Room 143, Baltimore, MD, 21287, USA.

Objectives: To evaluate the added value of diffusion-weighted imaging (DWI) on MRI in differentiating serous from mucin-producing pancreatic cystic neoplasms (PCNs).

Methods: One hundred seventeen patients with PCN measuring ≥ 10 mm were included. Three readers independently evaluated MRI with and without the use of apparent diffusion coefficient (ADC). Read More

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http://dx.doi.org/10.1007/s00330-019-6010-9DOI Listing
February 2019

Teleradiological outsourcing-compromises and hidden costs.

Eur Radiol 2019 Feb 14. Epub 2019 Feb 14.

University Hospital of Geneva, Geneva, Switzerland.

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http://dx.doi.org/10.1007/s00330-019-6014-5DOI Listing
February 2019

Performance measures among non-immigrants and immigrants attending BreastScreen Norway: a population-based screening programme.

Eur Radiol 2019 Feb 14. Epub 2019 Feb 14.

The Cancer Registry of Norway, P.O. Box 5313, Majorstuen, 0304, Oslo, Norway.

Objectives: To explore performance measures among non-immigrants and immigrants attending BreastScreen Norway.

Methods: We analysed data from 2,951,375 screening examinations among non-immigrants and 153,026 among immigrants from 1996 to 2015. Immigrants were categorised into high- and low-incidence countries according to the incidence of breast cancer in their birth country. Read More

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http://dx.doi.org/10.1007/s00330-019-6009-2DOI Listing
February 2019

DXA-equivalent quantification of bone mineral density using dual-layer spectral CT scout scans.

Eur Radiol 2019 Feb 13. Epub 2019 Feb 13.

Department of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany.

Objectives: To develop and evaluate a method for areal bone mineral density (aBMD) measurement based on dual-layer spectral CT scout scans.

Methods: A post-processing algorithm using a pair of 2D virtual mono-energetic scout images (VMSIs) was established in order to semi-automatically compute the aBMD at the spine similarly to DXA, using manual soft tissue segmentation, semi-automatic segmentation for the vertebrae, and automatic segmentation for the background. The method was assessed based on repetitive measurements of the standardized European Spine Phantom (ESP) using the standard scout scan tube current (30 mA) and other tube currents (10 to 200 mA), as well as using fat-equivalent extension rings simulating different patient habitus, and was compared to dual-energy X-ray absorptiometry (DXA). Read More

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http://dx.doi.org/10.1007/s00330-019-6005-6DOI Listing
February 2019
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Influence of segmentation margin on machine learning-based high-dimensional quantitative CT texture analysis: a reproducibility study on renal clear cell carcinomas.

Eur Radiol 2019 Feb 12. Epub 2019 Feb 12.

Department of Radiology, Istanbul Training and Research Hospital, Istanbul, Turkey.

Objective: To determine the possible influence of segmentation margin on each step (feature reproducibility, selection, and classification) of the machine learning (ML)-based high-dimensional quantitative computed tomography (CT) texture analysis (qCT-TA) of renal clear cell carcinomas (RcCCs).

Materials And Methods: For this retrospective study, 47 patients with RcCC were included from a public database. Two segmentations were obtained by two radiologists for each tumour: (i) contour-focused and (ii) margin shrinkage of 2 mm. Read More

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http://dx.doi.org/10.1007/s00330-019-6003-8DOI Listing
February 2019
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Differentiating kidney stones from phleboliths in unenhanced low-dose computed tomography using radiomics and machine learning.

Eur Radiol 2019 Feb 12. Epub 2019 Feb 12.

Division of Radiology, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland.

Objectives: Distinguishing between kidney stones and phleboliths can constitute a diagnostic challenge in patients undergoing unenhanced low-dose CT (LDCT) for acute flank pain. We sought to investigate the accuracy of radiomics and a machine-learning classifier in differentiating between kidney stones and phleboliths on LDCT.

Methods: Radiomics features were extracted following a semi-automatic segmentation of kidney stones and phleboliths for two independent consecutive cohorts of patients undergoing LDCT for acute flank pain. Read More

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http://dx.doi.org/10.1007/s00330-019-6004-7DOI Listing
February 2019

Cam-type femoroacetabular impingement-correlations between alpha angle versus volumetric measurements and surgical findings.

Eur Radiol 2019 Feb 11. Epub 2019 Feb 11.

Department of Orthopedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA.

Aim: Determine correlations of 3DCT cam-type femoroacetabular impingement (FAI) measurements with surgical findings of labral tear and cartilage loss.

Methods: Digital search of symptomatic cam-type FAI from July 2013 to August 2016 yielded 43 patients. Two readers calculated volumes of femoral head, bump, and alpha angles on 3DCT images. Read More

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http://dx.doi.org/10.1007/s00330-018-5968-zDOI Listing
February 2019

Volumetric growth rates of sessile serrated adenomas/polyps observed in situ at longitudinal CT colonography.

Eur Radiol 2019 Feb 11. Epub 2019 Feb 11.

University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.

Objective: Sessile serrated adenomas/polyps (SSA/Ps) are now recognized as potential cancer precursors, but little is known about their natural history. We assessed the in vivo growth rates of histologically proven SSA/Ps at longitudinal CT colonography (CTC) and compared results with non-advanced tubular adenomas (TAs).

Methods: We identified a cohort of 53 patients (mean age, 54. Read More

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http://dx.doi.org/10.1007/s00330-019-5999-0DOI Listing
February 2019

Radiologists and nuclear medicine physicians are looking forward to a cross-curricular training.

Eur Radiol 2019 Feb 11. Epub 2019 Feb 11.

Department of Radiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 10, 3010, Bern, Switzerland.

Objectives: To obtain an overview of the attitudes toward interdisciplinary further education of residents and consultants in radiology and nuclear medicine and preferences regarding a future joint training curriculum in Switzerland.

Methods: A 34-item questionnaire was sent electronically (SurveyMonkey online survey tool) to 1244 radiologists and nuclear physicians (residents and consultants) in Switzerland. The items asked about the motivation for further education in each other's specialty and preferences regarding a joint further education curriculum in radiology and nuclear medicine. Read More

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http://dx.doi.org/10.1007/s00330-018-5989-7DOI Listing
February 2019

Abdominal compartment syndrome and intra-abdominal hypertension in critically ill patients: diagnostic value of computed tomography.

Eur Radiol 2019 Feb 8. Epub 2019 Feb 8.

Department of Radiology, University Hospital, 3 Boulevard Fleming, 25030, Besançon, France.

Aims: The aims of the present work were to reevaluate, prospectively, the diagnostic value of already-described computed tomography (CT) landmarks of intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) and to study the diagnostic value of some undescribed CT signs for the diagnosis of IAH and ACS.

Materials And Methods: Consecutive patients admitted to the intensive care unit (ICU) in shock for whom an abdominal CT was clinically indicated were included. CT examinations were reviewed and scored by two reviewers for the 12 proposed CT features of IAH and ACS. Read More

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http://dx.doi.org/10.1007/s00330-018-5994-xDOI Listing
February 2019
1 Read

Comparing two visualization protocols for tomosynthesis in screening: specificity and sensitivity of slabs versus planes plus slabs.

Eur Radiol 2019 Feb 8. Epub 2019 Feb 8.

Radiology Unit, AUSL Reggio Emilia, IRCCS, Reggio Emilia, Italy.

Objectives: Tomosynthesis (DBT) has proven to be more sensitive than digital mammography, but it requires longer reading time. We retrospectively compared accuracy and reading times of a simplified protocol with 1-cm-thick slabs versus a standard protocol of slabs + 1-mm-spaced planes, both integrated with synthetic 2D.

Methods: We randomly selected 894 DBTs (including 12 cancers) from the experimental arm of the RETomo trial. Read More

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http://dx.doi.org/10.1007/s00330-018-5978-xDOI Listing
February 2019

Feasibility of low-dose CT with spectral shaping and third-generation iterative reconstruction in evaluating interstitial lung diseases associated with connective tissue disease: an intra-individual comparison study.

Eur Radiol 2019 Feb 8. Epub 2019 Feb 8.

Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, China.

Objectives: To investigate the feasibility of low-dose CT (LDCT) with tin filtration and third-generation iterative reconstruction (IR) in evaluating interstitial lung diseases associated with connective tissue disease (CTD-ILD).

Methods: Fifty-three consecutive adult patients with CTD-ILD underwent regular-dose chest CT (RDCT) at 110 kVp followed by LDCT with tin-filtered 100 kVp. RDCT was reconstructed with filtered back projection (FBP) and advanced modeled iterative reconstruction (ADMIRE); LDCT was reconstructed with ADMIRE. Read More

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http://dx.doi.org/10.1007/s00330-018-5969-yDOI Listing
February 2019
1 Read

Optimal beam quality for chest flat panel detector system: realistic phantom study.

Eur Radiol 2019 Feb 8. Epub 2019 Feb 8.

Department of Radiology, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.

Objective: To investigate optimal beam quality for chest flat panel detector (FPD) system by semi-quantitatively assessment using a realistic lung phantom.

Materials And Methods: Chest FPD radiographs were obtained on a realistic lung phantom with simulated lung opacities using various X-ray tube voltage levels (90-140 kV) with/without copper filter. Entrance skin dose was set to maintain identical for all images (0. Read More

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http://dx.doi.org/10.1007/s00330-019-5998-1DOI Listing
February 2019

Can we ablate liver lesions close to large portal and hepatic veins with MR-guided HIFU? An experimental study in a porcine model.

Eur Radiol 2019 Feb 8. Epub 2019 Feb 8.

Institute of Clinical Medicine, University of Oslo, Oslo, Norway.

Objectives: Invasive treatment of tumors adjacent to large hepatic vessels is a continuous clinical challenge. The primary aim of this study was to examine the feasibility of ablating liver tissue adjacent to large hepatic and portal veins with magnetic resonance imaging-guided high-intensity focused ultrasound (MRgHIFU). The secondary aim was to compare sonication data for ablations performed adjacent to hepatic veins (HV) versus portal veins (PV). Read More

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http://dx.doi.org/10.1007/s00330-018-5996-8DOI Listing
February 2019
1 Read

Machine learning identifies "rsfMRI epilepsy networks" in temporal lobe epilepsy.

Eur Radiol 2019 Feb 8. Epub 2019 Feb 8.

Department of Electrical Engineering, Indian Institute of Technology Delhi, (IIT-D), New Delhi, Delhi, 110016, India.

Objectives: Experimental models have provided compelling evidence for the existence of neural networks in temporal lobe epilepsy (TLE). To identify and validate the possible existence of resting-state "epilepsy networks," we used machine learning methods on resting-state functional magnetic resonance imaging (rsfMRI) data from 42 individuals with TLE.

Methods: Probabilistic independent component analysis (PICA) was applied to rsfMRI data from 132 subjects (42 TLE patients + 90 healthy controls) and 88 independent components (ICs) were obtained following standard procedures. Read More

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http://link.springer.com/10.1007/s00330-019-5997-2
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http://dx.doi.org/10.1007/s00330-019-5997-2DOI Listing
February 2019
10 Reads

Artificial intelligence in radiology: who's afraid of the big bad wolf?

Eur Radiol 2019 Feb 8. Epub 2019 Feb 8.

Department of Diagnostic Radiology, McGill University, Montreal, QC, Canada.

This Editorial comment refers to the article "Medical students' attitude towards artificial intelligence: a multicenter survey," Pinto Dos Santos D, et al Eur Radiol 2018. KEY POINTS: • Medical students are not well informed of the potential consequences of AI in radiology. • The fundamental principles of AI-as well as its application in medicine-must be taught in medical schools. Read More

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http://dx.doi.org/10.1007/s00330-018-5995-9DOI Listing
February 2019

MRI reveals different Crohn's disease phenotypes in children and adults.

Eur Radiol 2019 Feb 7. Epub 2019 Feb 7.

Department of Pediatrics and Pediatric Neuropsychiatry, Sapienza University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico, 155, 00161, Rome, Italy.

Objectives: To identify differences between two cohorts of adult and pediatric patients affected by Crohn's disease (CD), with regard to lesion location in the small intestine and colon-rectum, lesion activity, and prevalence of perianal disease (PD), using MRI as the main diagnostic tool.

Methods: We retrospectively reviewed 350 consecutive MRI examinations performed between 2013 and 2016 in outpatients or inpatients with histologically proven CD, monitored by the Gastroenterology and Pediatric Units of our Hospital. The magnetic resonance enterography (MRE) protocol for adult and pediatric CD patients routinely includes evaluation of nine different intestinal segments (from jejunum to rectum) and of the anal canal. Read More

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http://dx.doi.org/10.1007/s00330-019-6006-5DOI Listing
February 2019
1 Read

Making useful clinical guidelines: the ESGAR perspective.

Eur Radiol 2019 Feb 7. Epub 2019 Feb 7.

Centre for Medical Imaging, University College London, London, UK.

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http://dx.doi.org/10.1007/s00330-019-6002-9DOI Listing
February 2019

Correction to: Effect of training on ultrasonography (US) BI-RADS features for radiology residents: a multicenter study comparing performances after training.

Eur Radiol 2019 Feb 7. Epub 2019 Feb 7.

Department of Radiology, Research Institute of Radiological Science, College of Medicine, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.

The original version of this article, published on 07 January 2019, unfortunately contained a mistake. Read More

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http://dx.doi.org/10.1007/s00330-019-06044-8DOI Listing
February 2019
4.014 Impact Factor

Fine needle aspiration biopsy indications for thyroid nodules: compare a point-based risk stratification system with a pattern-based risk stratification system.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang Road West, Guangzhou, 510120, China.

Objectives: We aim to compare the diagnostic performance to assess thyroid nodules and reliability for recommending fine needle aspiration biopsy (FNAB) between American College of Radiology thyroid image reporting and data system (ACR TI-RADS) and American Thyroid Association (ATA) guidelines.

Methods: In total, this retrospective study included 1001 consecutive thyroid nodules in 918 patients from May 2016 to December 2017. US features of the thyroid nodules, including composition, echogenicity, shape, margins, echogenic foci, and size, were reviewed and were classified according to ACR TI-RADS and ATA guidelines, respectively. Read More

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http://dx.doi.org/10.1007/s00330-018-5992-zDOI Listing
February 2019
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An analysis of 11.3 million screening tests examining the association between recall and cancer detection rates in the English NHS breast cancer screening programme.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Cambridge Breast Unit and NIHR Cambridge Biomedical Research Centre, Cambridge University Hospitals NHS Trust, Cambridge, UK.

Objective: To develop methods to model the relationship between cancer detection and recall rates to inform professional standards.

Methods: Annual screening programme information for each of the 80 English NHSBSP units (totalling 11.3 million screening tests) for the seven screening years from 1 April 2009 to 31 March 2016 and some Dutch screening programme information were used to produce linear and non-linear models. Read More

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http://dx.doi.org/10.1007/s00330-018-5957-2DOI Listing
February 2019
1 Read

Gender-specific association of body composition with inflammatory and adipose-related markers in healthy elderly Europeans from the NU-AGE study.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.

Objectives: The aim of this work was to examine the cross-sectional relationship between body composition (BC) markers for adipose and lean tissue and bone mass, and a wide range of specific inflammatory and adipose-related markers in healthy elderly Europeans.

Methods: A whole-body dual-energy X-ray absorptiometry (DXA) scan was made in 1121 healthy (65-79 years) women and men from five European countries of the "New dietary strategies addressing the specific needs of elderly population for a healthy aging in Europe" project (NCT01754012) cohort to measure markers of adipose and lean tissue and bone mass. Pro-inflammatory (IL-6, IL-6Rα, TNF-α, TNF-R1, TNF-R2, pentraxin 3, CRP, alpha-1-acid glycoprotein, albumin) and anti-inflammatory (IL-10, TGF-β1) molecules as well as adipose-related markers such as leptin, adiponectin, ghrelin, and resistin were measured by magnetic bead-based multiplex-specific immunoassays and biochemical assays. Read More

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http://dx.doi.org/10.1007/s00330-018-5973-2DOI Listing
February 2019

Outcome and risk factors associated with perirenal subcapsular fluid collections in extremely preterm infants with acute kidney injury.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, Republic of Korea, 06351.

Objectives: To investigate the incidence of, clinical outcome of, and risk factors for perirenal subcapsular fluid collections in extremely preterm infants with acute kidney injury (AKI).

Methods: Extremely preterm infants with AKI who underwent renal ultrasonography (US) during neonatal intensive care unit stay were classified into two groups according to the presence of a perirenal subcapsular fluid collection at US. Clinical outcome was compared, and relevant data were analysed, including demographics and comorbidities of the infants, as well as maternal demographics. Read More

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http://link.springer.com/10.1007/s00330-018-5962-5
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http://dx.doi.org/10.1007/s00330-018-5962-5DOI Listing
February 2019
3 Reads

RFA vs resection of HCC: exploring the past to improve the future.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Institute for Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Germany.

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http://dx.doi.org/10.1007/s00330-019-6000-yDOI Listing
February 2019
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Diagnostic performance of [F]FDG-PET/MRI for liver metastasis in patients with primary malignancy: a systematic review and meta-analysis.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Department of Radiology and the Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.

Objectives: To systematically determine the diagnostic accuracy of 18-fluorodeoxyglucose positron emission tomography/magnetic resonance imaging ([F]FDG-PET/MRI) for the detection of liver metastases and evaluate the sources of heterogeneity in the reported results.

Methods: PubMed and EMBASE databases were searched up until December 31, 2017, to identify original research studies reporting the diagnostic performance (Se and Sp) of PET/MRI for liver metastases, in comparison with PET/CT. Study quality was assessed using QUADAS-2. Read More

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http://dx.doi.org/10.1007/s00330-018-5909-xDOI Listing
February 2019
1 Read
4.014 Impact Factor

Noise reduction and motion elimination in low-dose 4D myocardial computed tomography perfusion (CTP): preliminary clinical evaluation of the ASTRA4D algorithm.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Department of Radiology, Charité Medical School, Charitéplatz 1, 10117, Berlin, Germany.

Objectives: To propose and evaluate a four-dimensional (4D) algorithm for joint motion elimination and spatiotemporal noise reduction in low-dose dynamic myocardial computed tomography perfusion (CTP).

Methods: Thirty patients with suspected or confirmed coronary artery disease were prospectively included and underwent dynamic contrast-enhanced 320-row CTP. A novel deformable image registration method based on the principal component analysis (PCA) of the ante hoc temporally smoothed voxel-wise time-attenuation curves (ASTRA4D) is presented. Read More

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http://dx.doi.org/10.1007/s00330-018-5899-8DOI Listing
February 2019
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Correction to: Diagnostic efficacy and safety of ultrasound-guided kidney transplant biopsy using cortex-only view: a retrospective single-center study.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Department of Radiology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea.

The original version of this article, published on 17 December 2018, unfortunately contained a mistake. The following correction has therefore been made in the original: The name of Jaeseung Shin was presented incorrectly. The corrected author list is given above. Read More

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http://dx.doi.org/10.1007/s00330-019-6012-7DOI Listing
February 2019
4.014 Impact Factor

Correction to: CT screening for lung cancer: comparison of three baseline screening protocols.

Eur Radiol 2019 Feb 4. Epub 2019 Feb 4.

Icahn School of Medicine at Mount Sinai, New York, NY, USA.

The original version of this article, published on 03 December 2018, unfortunately contained a mistake. Read More

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http://dx.doi.org/10.1007/s00330-018-5983-0DOI Listing
February 2019

Multi-parametric and multi-regional histogram analysis of MRI: modality integration reveals imaging phenotypes of glioblastoma.

Eur Radiol 2019 Feb 1. Epub 2019 Feb 1.

Cambridge Brain Tumour Imaging Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Box 167 Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK.

Objectives: Integrating multiple imaging modalities is crucial for MRI data interpretation. The purpose of this study is to determine whether a previously proposed multi-view approach can effectively integrate the histogram features from multi-parametric MRI and whether the selected features can offer incremental prognostic values over clinical variables.

Methods: Eighty newly-diagnosed glioblastoma patients underwent surgery and chemoradiotherapy. Read More

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http://dx.doi.org/10.1007/s00330-018-5984-zDOI Listing
February 2019

CT of acute rejection after liver transplantation: a matched case-control study.

Eur Radiol 2019 Feb 1. Epub 2019 Feb 1.

Division of Liver Transplantation and Hepatobiliary Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.

Purpose: This study was conducted in order to investigate computed tomography (CT) findings associated with acute cellular rejection (ACR) following liver transplantation (LT) and their relevance to clinical outcomes.

Materials And Methods: We analyzed 120 patients with newly diagnosed ACR following LT for various liver diseases and 119 controls matched for age, sex, type of liver graft, and date of CT exam following LT. Two radiologists analyzed the images for morphological characteristics of the graft, morphological change in the major draining vein, graft enhancement in the portal venous phase, graft attenuation on noncontrast CT, and periportal halo. Read More

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http://dx.doi.org/10.1007/s00330-018-5971-4DOI Listing
February 2019
1 Read
4.014 Impact Factor