8,571 results match your criteria Acta Radiologica [Journal]


Comparison of three FLAIR vascular hyperintensities methodologies in patients with acute ischemic stroke.

Acta Radiol 2020 Jul 13:284185120939271. Epub 2020 Jul 13.

Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China.

Background: Multiple methods have been used to analyze fluid-attenuated inversion recovery (FLAIR) vascular hyperintensities (FVHs) which may represent collaterals in patients with acute ischemic stroke (AIS); however, there is no consensus between methods.

Purpose: To compare three frequently used FVH methods for predicting early infarct volume and clinical outcome in patients with AIS.

Material And Methods: Patients with AIS in middle cerebral artery territory were recruited. Read More

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http://dx.doi.org/10.1177/0284185120939271DOI Listing

Differential patterns of interhemispheric functional connectivity between AQP4-optic neuritis and MOG-optic neuritis: a resting-state functional MRI study.

Acta Radiol 2020 Jul 13:284185120940250. Epub 2020 Jul 13.

Department of Ophthalmology, the First Medical Center of Chinese PLA General Hospital, Beijing, PR China.

Background: Several neuroimaging studies demonstrated that optic neuritis (ON) leads to functional and anatomical architecture changes in the brain. The alterations of interhemispheric functional connectivity (IFC) in patients with AQP4-ON and myelin oligodendrocyte glycoprotein (MOG)-ON are not well understood.

Purpose: To investigate the differential patterns of VMHC in patients with AQP4-ON and MOG-ON. Read More

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http://dx.doi.org/10.1177/0284185120940250DOI Listing

Weighted or internal rotation radiographs are not useful in the classification of acromioclavicular joint dislocations.

Acta Radiol 2020 Jul 13:284185120939270. Epub 2020 Jul 13.

Department of Orthopedics, Helsingborg Hospital, Lund University, Helsingborg, Sweden.

Background: Weighted radiographs are performed to classify acromioclavicular joint dislocations; however, the evidence regarding their usefulness is conflicting. Laboratory studies suggest that internal rotation views can replace weighted radiographs, but this has not been clinically evaluated.

Purpose: To evaluate whether weighted or internal rotation radiographs uncovers more high-grade acromioclavicular joint dislocations than non-weighted radiographs. Read More

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http://dx.doi.org/10.1177/0284185120939270DOI Listing

Emergency neck MRI: feasibility and diagnostic accuracy in cases of neck infection.

Acta Radiol 2020 Jul 13:284185120940242. Epub 2020 Jul 13.

Department of Radiology, Turku University Hospital, Turku, Finland.

Background: Computed tomography (CT) has traditionally been the first-line imaging method in neck emergencies such as deep neck infections. Due to superior soft-tissue contrast, magnetic resonance imaging (MRI) may be an alternative to CT, also in emergency situations.

Purpose: To characterize the use of routine MRI in neck emergencies, with an emphasis on clinical feasibility and diagnostic accuracy in cases of neck infection. Read More

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http://dx.doi.org/10.1177/0284185120940242DOI Listing

Value of MRI-based radiomics analysis for differentiation of benign and malignant epithelial neoplasms in the lacrimal gland: a retrospective study.

Acta Radiol 2020 Jul 13:284185120940258. Epub 2020 Jul 13.

Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing, PR China.

Background: It is essential to distinguish malignant from benign epithelial neoplasms in the lacrimal gland for different treatment options and prognosis.

Purpose: To retrospectively assess the performance of magnetic resonance imaging (MRI)-based radiomics features in the differentiation of benign and malignant epithelial neoplasms in the lacrimal gland.

Material And Methods: Seventy-six consecutive patients with histopathology-proven epithelial neoplasms of the lacrimal gland were enrolled in the study, including 41 benign and 35 malignant neoplasms. Read More

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http://dx.doi.org/10.1177/0284185120940258DOI Listing

Does diffusion-weighted magnetic resonance imaging have a place in the differential diagnosis of brucella sacroiliitis and seronegative spondyloarthropathy?

Acta Radiol 2020 Jul 9:284185120938370. Epub 2020 Jul 9.

Department of Physical Therapy and Rehabilitation, Harran University School of Medicine, Sanliurfa, Turkey.

Background: The aim of this study is to investigate the role of diffusion-weighted imaging (DWI) in the differential diagnosis of sacroiliitis.

Purpose: To compare the sacroiliac magnetic resonance imaging (MRI) examinations of patients with suspected active sacroiliitis with patients with acute SpA MR findings and the DWI examinations of patients with acute brucella sacroiliitis, and thereby determine whether DWI can contribute to the differential diagnosis.

Material And Methods: A total of 84 patients were included in the study and were separated into three groups: group 1 (13 women, 6 men) comprised cases with brucella positive for sacroiliitis; group 2 (17 women, 19 men) comprised cases negative for brucella but with sacroiliitis; and group 3 (16 women, 13 men) comprised cases negative for brucella and sacroiliitis. Read More

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http://dx.doi.org/10.1177/0284185120938370DOI Listing

Possible neuroprotective effects of rasagiline in Alzheimer's disease: a SPECT study.

Acta Radiol 2020 Jul 9:284185120940264. Epub 2020 Jul 9.

Department of Nuclear Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.

Background: The current lack of effective treatments for Alzheimer's disease (AD) and the rapidly increasing burden of the disease highlight the urgent need to find new treatments. Despite accumulating evidence of the beneficial effects of rasagiline in neurodegenerative diseases such as Parkinson's disease, the effects of rasagiline on the brains of patients with AD have not been elucidated.

Purpose: To examine the effects of rasagiline on regional cerebral flow (rCBF) in patients with AD using single photon emission computed tomography (SPECT). Read More

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http://dx.doi.org/10.1177/0284185120940264DOI Listing

Diagnostic reference levels for fluoroscopically guided procedures in a South African tertiary hospital.

Acta Radiol 2020 Jul 8:284185120938371. Epub 2020 Jul 8.

Division of Radiodiagnosis, Tygerberg Hospital, University of Stellenbosch, Cape Town, Western Cape, South Africa.

Background: The burgeoning usage and complexity of fluoroscopically guided procedures (FGPs) contribute to extended examination times and increased risk of adverse radiation effects. Diagnostic reference levels (DRLs) play a pivotal role in dose optimization. There are limited DRL data for FGPs in low- and middle-income countries (LMICs). Read More

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http://dx.doi.org/10.1177/0284185120938371DOI Listing

Osteoarthritis of the hip: are degenerative tears of the acetabular labrum predictable from features on hip radiographs?

Acta Radiol 2020 Jul 8:284185120936269. Epub 2020 Jul 8.

Emory University School of Medicine, Atlanta, GA, USA.

Background: A common feature of hip arthritis is the presence of labra tears. Recent literature suggests against the use of magnetic resonance imaging (MRI) in patients aged >45 years for the assessment of hip pain related to arthritis.

Purpose: To determine if radiographic features of osteoarthritis detectable on routine hip radiographs are accurate and reliable surrogate markers of degenerative acetabular labral tears identified on MR arthrography (MRA) and corroborated during arthroscopy. Read More

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http://dx.doi.org/10.1177/0284185120936269DOI Listing

Reproducibility of radiomics features derived from intravoxel incoherent motion diffusion-weighted MRI of cervical cancer.

Acta Radiol 2020 Jul 8:284185120934471. Epub 2020 Jul 8.

Department of Radiology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.

Background: The reproducibility of intravoxel incoherent motion (IVIM)-based radiomics studies in humans has not been reported.

Purpose: To determine the inter- and intra-observer variability on the reproducibility of IVIM-based radiomics features in cervical cancer (CC).

Material And Methods: The IVIM images of 25 patients with CC were retrospectively collected. Read More

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http://dx.doi.org/10.1177/0284185120934471DOI Listing

Contrast-enhanced ultrasound (CEUS) reliably rules out neoplasm in developmental renal pseudotumor.

Acta Radiol 2020 Jul 6:284185120939291. Epub 2020 Jul 6.

Department of Radiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.

Background: Renal pseudotumors appear as benign cortical hypertrophies and are typically assessed by contrast-enhanced computed tomography or magnetic resonance imaging to rule out malignancy.

Purpose: To investigate whether contrast-enhanced ultrasound (CEUS) can rule out renal neoplasm and thus potentially reduce cross-sectional imaging and further follow-up in these patients.

Material And Methods: Thirty-two patients with presumption of developmental renal pseudotumor on CEUS between June 2011 and July 2019 were retrospectively analyzed. Read More

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http://dx.doi.org/10.1177/0284185120939291DOI Listing

Is a sampling transition zone important to increase the detection of prostate cancer in systematic prostatic biopsies?

Acta Radiol 2020 Jul 6:284185120938363. Epub 2020 Jul 6.

Department of Interventional Radiology, Hospital Israelita Albert Einstein, São Paulo, Brazil.

Background: Use of transrectal ultrasound (US)-guided biopsies improved diagnosis and treatment for patients with high prostate-specific antigen (PSA) or abnormal digital rectal exam (DRE).

Purpose: To investigate whether taking two transition zone (TZ) biopsies in addition to routine prostate double-sextant biopsies (12-cores) would improve detection rates of prostate cancer (PCa).

Material And Methods: A retrospective analysis of 1107 in a single institution database after Institutional Review Board approval, which underwent US-guided prostate biopsies from January 2014 to June 2016. Read More

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http://dx.doi.org/10.1177/0284185120938363DOI Listing

Does mammographic density remain a radiological challenge in the digital era?

Acta Radiol 2020 Jul 5:284185120938367. Epub 2020 Jul 5.

Medical Image Optimisation and Perception Group (MIOPeG), Discipline of Medical Imaging and Radiation Sciences, Faculty of Health Sciences, The University of Sydney, Sydney, NSW, Australia.

Background: The low subject contrast between cancerous and fibroglandular tissue could obscure breast abnormalities.

Purpose: To investigate radiologists' performance for detection of breast cancer in low and high mammographic density (MD) when cases are digitally acquired.

Material And Methods: A test set of 60 digital mammography cases, of which 20 were cancerous, were examined by 17 radiologists. Read More

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http://dx.doi.org/10.1177/0284185120938367DOI Listing

Usability of the lateral decubitus position on four-dimensional ultra-low-dose computed tomography for the detection of localized pleural adhesion in the pulmonary apical region.

Acta Radiol 2020 Jul 1:284185120930611. Epub 2020 Jul 1.

Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan.

Background: Localized pleural adhesion (LPA) evaluation in the apical region is difficult even with four-dimensional ultra-low-dose computed tomography (4D-ULDCT) in the supine position due to smaller pleural movements.

Purpose: To assess usability of 4D-ULDCT in the lateral decubitus (LD) position for LPA detection in the apical region.

Material And Methods: Forty-seven patients underwent 4D-ULDCT of a single respiration cycle with 16-cm coverage of body axis in supine and LD positions with the affected lung uppermost. Read More

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http://dx.doi.org/10.1177/0284185120930611DOI Listing

Cerebral schistosomiasis: MRI features with pathological correlation.

Acta Radiol 2020 Jun 30:284185120934475. Epub 2020 Jun 30.

Department of Radiology, Sichuan University West China Hospital, Chengdu, Sichuan, PR China.

Background: Neuroschistosomiasis is not commonly encountered and is probably underrecognized. We hope these findings can help clinicians and radiologists to raise awareness of this disabling disorder.

Purpose: To demonstrate the magnetic resonance imaging (MRI) findings of cerebral schistosomiasis and correlate it with pathological findings. Read More

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http://dx.doi.org/10.1177/0284185120934475DOI Listing

Morphological and functional assessment of the uterus: "one-stop shop imaging" using a compressed-sensing accelerated, free-breathing T1-VIBE sequence.

Acta Radiol 2020 Jun 29:284185120936260. Epub 2020 Jun 29.

Department of Radiology, Kantonsspital Baden, Baden, Switzerland.

Background: The combination of motion-insensitive, high-temporal, and spatial resolution imaging with evaluation of quantitative perfusion has the potential to increase the diagnostic capabilities of magnetic resonance imaging (MRI) in the female pelvis.

Purpose: To compare a free-breathing compressed-sensing VIBE (fbVIBE) with flexible temporal resolution (range = 4.6-13. Read More

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http://dx.doi.org/10.1177/0284185120936260DOI Listing

Patient safety incidents in radiology: frequency and distribution of incident types.

Acta Radiol 2020 Jun 29:284185120937386. Epub 2020 Jun 29.

Medical Imaging Center, Department of Radiology, Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, the Netherlands.

Background: Patient safety incidents may be a valuable source of information to learn from and to prevent future errors.

Purpose: To determine the distribution of patient safety incident types in radiology according to the International Classification for Patient Safety (ICPS), and to comprehensively review those incidents that were either harmful or serious in terms of risk of patient harm and reoccurrence.

Material And Methods: The most recent five-year database (2014-2019) of a radiology incident reporting system was evaluated. Read More

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http://dx.doi.org/10.1177/0284185120937386DOI Listing

Radiological pitfalls associated with the diagnosis of usual interstitial pneumonia pattern on high-resolution computed tomography and associated findings: experience from a single Italian center.

Acta Radiol 2020 Jun 26:284185120936270. Epub 2020 Jun 26.

Department of Biomedicine and Prevention, Division of Diagnostic Imaging, University of Rome "Tor Vergata," Rome, Italy.

Background: The diagnostic algorithm for idiopathic pulmonary fibrosis (IPF) based on high-resolution computed tomography (HRCT) findings and multidisciplinary discussion (MDD) has been well established.

Purpose: To identify the causes of disagreement between non-thoracic and thoracic radiologist involved in MDD for the imaging diagnosis of usual interstitial pneumonia (UIP) patterns and associated findings on HRCT and to improve the understanding of IPF by non-expert radiologists through a more systematic approach to HRCT.

Material And Methods: This study included 68 patients who underwent MDD for suspected IPF. Read More

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http://dx.doi.org/10.1177/0284185120936270DOI Listing

Establishing reference values for the pubofemoral distance in normal infant medial hips by ultrasound.

Acta Radiol 2020 Jun 26:284185120933240. Epub 2020 Jun 26.

Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, PR China.

Background: Measuring the pubofemoral distance (PFD) is important for evaluating the effectiveness of hip reduction in the treatment of developmental dysplasia of the hip (DDH). However, reference PFD values have not been established in normal infants.

Purpose: To investigate variations in PFD values measured in normal infant medial hips stratified by age, laterality, and gender. Read More

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http://dx.doi.org/10.1177/0284185120933240DOI Listing

Utility of real-time image fusion technology in ultrasonography-guided fiducial marker implantation for stereotactic body radiation therapy for liver tumors.

Acta Radiol 2020 Jun 26:284185120934479. Epub 2020 Jun 26.

Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.

Background: Ultrasonography (US) is useful when implanting fiducial markers in the liver. However, the implant position is sometimes lost. Recently, real-time image fusion technology (Volume Navigation [V-navi]; GE Healthcare, Milwaukee, WI, USA) has been introduced as a technique for using images from different modalities, and its utility for fiducial marker implantation has been hypothesized. Read More

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http://dx.doi.org/10.1177/0284185120934479DOI Listing

Superselective transcatheter arterial embolization for acute small bowel bleeding: clinical outcomes and prognostic factors for ischemic complications.

Acta Radiol 2020 Jun 26:284185120936258. Epub 2020 Jun 26.

Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Republic of Korea.

Background: Small bowel bleeding (SBB) accounts for 5%-10% of all cases of acute gastrointestinal bleeding. Transcatheter arterial embolization (TAE) plays an important role in the treatment of SBB.

Purpose: To evaluate the safety and efficacy of superselective TAE exclusively for SBB and to assess factors associated with clinical outcomes. Read More

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http://dx.doi.org/10.1177/0284185120936258DOI Listing
June 2020
1.350 Impact Factor

Magnetic resonance imaging findings of extrauterine high-grade serous carcinoma based on new pathologic criteria for primary site assignment.

Acta Radiol 2020 Jun 23:284185120934474. Epub 2020 Jun 23.

Department of Radiology, Gifu University, Gifu, Japan.

Background: There has been no study that has reported magnetic resonance imaging (MRI) findings of extrauterine high-grade serous carcinomas (HGSCs) that have been histologically determined by the new criteria.

Purpose: To assess MRI findings of extrauterine HGSCs based on new pathologic criteria.

Material And Methods: Fifty patients with histopathologically proven extrauterine HGSCs, who underwent pretreatment gadolinium-enhanced MRI, were included in this study. Read More

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http://dx.doi.org/10.1177/0284185120934474DOI Listing

Use of rsfMRI-fALFF for the detection of changes in brain activity in patients with normal-tension glaucoma.

Acta Radiol 2020 Jun 22:284185120926901. Epub 2020 Jun 22.

Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, PR China.

Background: We know little about the changes of brain activity in patients with normal-tension glaucoma (NTG).

Purpose: To investigate the altered spontaneous brain activity in patients with NTG through the resting state functional magnetic resonance imaging-fractional amplitude of low-frequency fluctuation (rsfMRI-fALFF) technique, and to explore the relationship with optical coherence tomography (OCT) and field of vision.

Material And Methods: Twenty patients with NTG and 20 healthy controls (HCs) (matched for sex, age, and level of education) were enrolled. Read More

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http://dx.doi.org/10.1177/0284185120926901DOI Listing

Cardiac hypertrophic risk markers of left ventricle and left atrium in chronic heart failure due to aortic and mitral valve disease.

Acta Radiol 2020 Jun 22:284185120933530. Epub 2020 Jun 22.

Faculty of Biological Sciences, Department of Biochemistry, Quaid-I-Azam University, Islamabad, Pakistan.

Background: Chronic valvular heart disease leads to systolic dysfunction and left atrial enlargement that ultimately results in heart failure.

Purpose: To investigate prognostic importance of Echocardiography and plasma natriuretic peptide levels that increase as a compensatory response and can be used as predictive markers for cardiac hypertrophy.

Material And Methods: The patients were divided into three groups: 51 with left ventricle hypertrophy due to aortic valve disease; 126 with left atrial enlargement due to mitral valve dysfunction; and 76 with both conditions. Read More

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http://dx.doi.org/10.1177/0284185120933530DOI Listing

Documentation of normal shape and measurements of the uterine fundus at reproductive age.

Acta Radiol 2020 Jun 20:284185120933983. Epub 2020 Jun 20.

Radiology Department, Hôpital Hôtel Dieu de Paris, Assistance Publique-Hôpitaux de Paris, Paris, France.

Background: The diagnosis of congenital uterine anomalies and the differentiation between different subtypes is based on various sets of measurements that are difficult to implement during daily workflow.

Purpose: To describe the shape and range of measurements of the normal uterus at the fundus in women of reproductive age.

Material And Methods: This retrospective study was conducted on 200 pelvic magnetic resonance imaging (MRI) examinations of female patients of reproductive age with normal uteri divided into three age groups (15-24 years, 25-34 years, 35-45 years). Read More

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http://dx.doi.org/10.1177/0284185120933983DOI Listing

External validation of Risk of Malignancy Index compared to IOTA Simple Rules.

Acta Radiol 2020 Jun 20:284185120933990. Epub 2020 Jun 20.

Department of Obstetrics and Gynecology, Catharina Hospital, Eindhoven, the Netherlands.

Background: Mathematical predictive models for ovarian tumors have an advantage over subjective assessment due to their relative simplicity, and therefore usefulness for less experienced sonographers. It is currently unclear which predictive model is best at predicting the nature of an ovarian tumor.

Purpose: To compare the diagnostic predictive accuracy of the International Ovarian Tumour Analysis Simple Rules (IOTA SR) with Risk of Malignancy Index (RMI), to differentiate between benign and malignant ovarian tumors. Read More

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http://dx.doi.org/10.1177/0284185120933990DOI Listing

Volume computed tomography perfusion as a predictive marker for treatment response to concurrent chemoradiotherapy in cervical cancer: a prospective study.

Acta Radiol 2020 Jun 17:284185120919261. Epub 2020 Jun 17.

Department of Radiology, Cancer Hospital of China Medical University, LiaoNing Cancer Hospital & Institute, Shenyang, Liaoning, PR China.

Background: Computed tomography perfusion (CTP) can provide information on blood perfusion as a reliable marker of tumor response to therapy.

Purpose: To assess the role of volume CTP (vCTP) parameters in predicting treatment response to concurrent chemoradiotherapy (CCRT) for cervical cancer.

Material And Methods: Thirty-three patients with cervical cancer underwent vCTP. Read More

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http://dx.doi.org/10.1177/0284185120919261DOI Listing

Management of life-threatening aortoesophageal fistula: experiences learned from eight patients.

Acta Radiol 2020 Jun 17:284185120933228. Epub 2020 Jun 17.

Department of Radiology, National Cancer Center, Goyang, Republic of Korea.

Background: Aortoesophageal fistula (AEF) is a rare but fatal condition causing massive upper gastrointestinal bleeding.

Purpose: To report our experiences in the management of life-threatening AEF.

Material And Methods: A total of eight patients (seven men, one woman; mean age = 59. Read More

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http://dx.doi.org/10.1177/0284185120933228DOI Listing

Comparison of noise-optimized linearly blended images and noise-optimized virtual monoenergetic images evaluated by dual-source, dual-energy CT in cardiac vein assessment.

Acta Radiol 2020 Jun 19:284185120933242. Epub 2020 Jun 19.

Department of Cardiology, Kim Hae Kangil Hospital, Gimhae, Republic of Korea.

Background: The coronary venous system is frequently used as an entry route to the heart and treatment modalities for many cardiac diseases and many procedures. Consequently, evaluation of the coronary venous system and understanding cardiac vein anatomy is crucial.

Purpose: To determine the optimal image set in a comparison of noise-optimized linearly blended images (F_0. Read More

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http://dx.doi.org/10.1177/0284185120933242DOI Listing

FDG PET correlates weakly with HIF-1 expression in solid tumors: a meta-analysis.

Acta Radiol 2020 Jun 19:284185120932378. Epub 2020 Jun 19.

Institute of Medical Epidemiology, Biostatistics, and Informatics, Martin-Luther-University Halle-Wittenberg, Halle, Germany.

Background: Hypoxia-inducible factor (HIF)-1α plays a key role in hypoxic adaptation of tumor cells. Overexpression of HIF-1α is associated with tumor aggressiveness and worse prognosis in several malignancies. Presumably, expression of HIF-1a may be reflected by positron emission tomography with 2-deoxy-2 [fluorine-18] fluoro-D-glucose (18F-FDG PET). Read More

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http://dx.doi.org/10.1177/0284185120932378DOI Listing

Altered resting cerebral blood flow specific to patients with diabetic retinopathy revealed by arterial spin labeling perfusion magnetic resonance imaging.

Acta Radiol 2020 Jun 17:284185120932391. Epub 2020 Jun 17.

Eye Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, PR China.

Background: Previous neuroimaging studies have shown that patients with diabetic retinopathy (DR) were accompanied by abnormalities in cerebral functional and structural architecture, whereas the resting cerebral blood flow (CBF) alterations in patients with DR are not well understood.

Purpose: To explore CBF alterations in patients with DR using pseudo-continuous arterial spin labeling (pCASL) imaging.

Material And Methods: Thirty-one individuals with DR (15 men, 16 women; mean age = 53. Read More

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http://dx.doi.org/10.1177/0284185120932391DOI Listing

Combined therapy with bronchial artery embolization and tranexamic acid for hemoptysis.

Acta Radiol 2020 Jun 17:284185120933984. Epub 2020 Jun 17.

Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.

Background: While most previous studies have viewed tranexamic acid as a bridging or temporary therapy, our preliminary study offers insights into the combined therapy of antifibrinolytic agent with endovascular treatment for hemoptysis.

Purpose: To investigate the feasibility and safety of combined therapy, to analyze factors affecting the outcomes of combined therapy, and to compare the effectiveness of combined therapy between groups with different etiologies.

Material And Methods: Between January 2011 and December 2014, 64 patients (33 men, mean age 64. Read More

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http://dx.doi.org/10.1177/0284185120933984DOI Listing

Increased tortuosity of bilateral distal internal carotid artery is associated with white matter hyperintensities.

Acta Radiol 2020 Jun 17:284185120932386. Epub 2020 Jun 17.

Department of Medical Imaging, The Second Affiliated Hospital of Fujian Medical University, Quanzhou City, Fujian Province, PR China.

Background: Although the pathophysiology of white matter hyperintensities remains unclear, we can recently explore the possible relationship with white matter hyperintensities by using quantitative parameter.

Purpose: To demonstrate the relationship between bilateral distal internal carotid arterial tortuosity and total brain white matter hyperintensities volume in elderly individuals.

Material And Methods: A total of 345 patients (age > 65 years) with brain magnetic resonance (MR) examinations were retrospectively included (44. Read More

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http://dx.doi.org/10.1177/0284185120932386DOI Listing

The value of intravoxel incoherent motion imaging in predicting the survival of patients with astrocytoma.

Acta Radiol 2020 Jun 17:284185120926907. Epub 2020 Jun 17.

Department of Magnetic Resonance, the First Hospital of Shanxi Medical University, Taiyuan, Shanxi, PR China.

Background: The evaluation of the prognosis of gliomas may have great value in individualized treatment.

Purpose: To evaluate the value of intravoxel incoherent motion (IVIM) in predicting the survival of patients with astrocytoma and comparing it to apparent diffusion coefficients (ADC).

Material And Methods: Sixty patients with pathologically confirmed cerebral astrocytomas underwent IVIM scans before any treatment was performed. Read More

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http://dx.doi.org/10.1177/0284185120926907DOI Listing

Neuroimaging of pediatric infratentorial tumors and the value of diffusion-weighted imaging (DWI) in determining tumor grade.

Acta Radiol 2020 Jun 15:284185120933219. Epub 2020 Jun 15.

Department of Pathology, Christian Medical College, Vellore, Tamil Nadu, India.

Background: Diffusion-weighted imaging (DWI) provides information about the cellular density of tumors. This feature is useful in grading and identifying different tumor types.

Purpose: To assess the value of diffusion restriction and apparent diffusion coefficient (ADC) values in differentiating pediatric infratentorial tumors. Read More

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http://dx.doi.org/10.1177/0284185120933219DOI Listing

Diagnostic performance of plain radiography for sacroiliitis in patients with suspected axial spondyloarthritis: a systematic review and meta-analysis.

Acta Radiol 2020 Jun 14:284185120930624. Epub 2020 Jun 14.

Department of Radiology, Asan Medical Center, Seoul, Republic of Korea.

Background: Plain radiography serves a pivotal role in diagnosing axial spondyloarthritis. However, a broad range of diagnostic performance of plain radiography has been reported.

Purpose: To perform a systematic review and meta-analysis to measure the diagnostic performance of plain radiography for sacroiliitis in patients suspected of having axial spondyloarthritis using magnetic resonance imaging (MRI) findings as the reference standard. Read More

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http://dx.doi.org/10.1177/0284185120930624DOI Listing

Influence of menstrual status and pathological type on the apparent diffusion coefficient in cervical cancer: a primary study.

Acta Radiol 2020 Jun 14:284185120926897. Epub 2020 Jun 14.

Department of Radiology, Cancer Hospital of China Medical University, LiaoNing Cancer Hospital & Institute, Shenyang, Liaoning, PR China.

Background: Apparent diffusion coefficient (ADC) value is an important quantitative parameter in the research of cervical cancer, affected by some factors.

Purpose: To investigate the effect of pathological type and menstrual status on the ADC value of cervical cancer.

Material And Methods: A total of 352 individuals with pathologically confirmed cervical cancer between January 2015 to December 2017 were retrospectively enrolled in this study, including 317 cases with squamous cell carcinomas (SCC) and 35 cases with adenocarcinomas (AC); 177 patients were non-menopausal and 175 were menopausal. Read More

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http://dx.doi.org/10.1177/0284185120926897DOI Listing

Radiomics of apparent diffusion coefficient maps to predict histologic grade in squamous cell carcinoma of the oral tongue and floor of mouth: a preliminary study.

Acta Radiol 2020 Jun 14:284185120931683. Epub 2020 Jun 14.

Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.

Background: Histologic grade assessment plays an important part in the clinical decision making and prognostic evaluation of squamous cell carcinoma (SCC) of the oral tongue and floor of mouth (FOM).

Purpose: To assess the value of apparent diffusion coefficient (ADC)-based radiomics in discriminating between low- and high-grade SCC of the oral tongue and FOM.

Material And Methods: We included data from 88 patients (training cohort: n = 59; testing cohort: n = 29) who underwent diffusion-weighted imaging with a 3. Read More

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http://dx.doi.org/10.1177/0284185120931683DOI Listing

Clinical and image features: large-vessel vasculitis after granulocyte colony stimulating factor administration.

Acta Radiol 2020 Jun 14:284185120931685. Epub 2020 Jun 14.

Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan.

Background: Granulocyte colony stimulating factor (G-CSF) is known to cause vasculitis, mainly in the small vessels. Several cases of large-vessel vasculitis (LVV) caused by G-CSF have recently been reported in the literature; we retrospectively suspect that some cases of LVV in our institution were associated with administration of G-CSF.

Purpose: To evaluate the clinical and radiological findings in our cases and to compare them with those in previous reports. Read More

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http://dx.doi.org/10.1177/0284185120931685DOI Listing

Intravoxel incoherent motion MRI in evaluating inflammatory activity in ulcerative colitis: a pilot study.

Acta Radiol 2020 Jun 14:284185120931689. Epub 2020 Jun 14.

Department of Radiology I, The Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.

Background: A non-invasive tool for the assessment of ulcerative colitis (UC) activity is needed for treatment control.

Purpose: To determine the efficacy of intravoxel incoherent motion (IVIM) in assessing inflammatory activity in UC.

Material And Methods: In this prospective study, 20 adult patients underwent 3. Read More

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http://dx.doi.org/10.1177/0284185120931689DOI Listing

The switch from Gd-DTPA to Gd-DOTA is not associated with decrease of the T1 signal intensity of the pallidus and dentate in a pediatric population.

Acta Radiol 2020 Jun 12:284185120927920. Epub 2020 Jun 12.

Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Italy.

Background: The switch from the linear gadolinium-based contrast agent (GBCA) gadopentate dimeglumine (Gd_DTPA) to the macrocyclic GBCA gadobutrol is associated with a decrease of the T1 signal intensity (SI) in brain gray matter nuclei. The effects of the switch to other macrocyclic GBCAs are not yet established.

Purpose: To explore the effects of switching from Gd-DTPA to the macrocyclic GBCA gadoterate meglumine (Gd-DOTA) in pediatric patients. Read More

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http://dx.doi.org/10.1177/0284185120927920DOI Listing

Assessment of liver metastases radiomic feature reproducibility with deep-learning-based semi-automatic segmentation software.

Acta Radiol 2020 Jun 9:284185120922822. Epub 2020 Jun 9.

Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.

Background: Good feature reproducibility enhances model reliability. The manual segmentation of gastric cancer with liver metastasis (GCLM) can be time-consuming and unstable.

Purpose: To assess the value of a semi-automatic segmentation tool in improving the reproducibility of the radiomic features of GCLM. Read More

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http://dx.doi.org/10.1177/0284185120922822DOI Listing

Temporary percutaneous radiologic gastrojejunostomy with single gastropexy.

Acta Radiol 2020 Jun 9:284185120929707. Epub 2020 Jun 9.

Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.

Background: Although the effectiveness of percutaneous radiologic gastrojejunostomy (PRGJ) has been reported, a detailed description of the indications and clinical effectiveness of temporary PRGJ is still limited.

Purpose: To evaluate the clinical effectiveness and technical feasibility of temporary PRGJ using the modified Chiba-needle technique with single gastropexy.

Material And Methods: Temporary PRGJ using the modified Chiba-needle technique with single gastropexy was performed in 27 consecutive patients (19 men, 8 women; mean age = 61 years; age range = 32-77 years) for esophageal perforation (n = 18) or postoperative gastroparesis (n = 9). Read More

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http://dx.doi.org/10.1177/0284185120929707DOI Listing

Evaluation of distal femoral cartilage by B-mode ultrasonography and shear wave elastography in patients with knee osteoarthritis: a preliminary study.

Acta Radiol 2020 Jun 9:284185120930642. Epub 2020 Jun 9.

Department of Radiology, Faculty of Medicine, Van Yüzüncü Yıl University, Van, Turkey.

Background: Degenerative change in articular cartilage is one of the most important factors in the development of osteoarthritis. Shear wave elastography can be used to identify pathologic cartilage.

Purpose: To evaluate distal femoral cartilage by shear wave elastography in patients with symptomatic knee osteoarthritis. Read More

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http://dx.doi.org/10.1177/0284185120930642DOI Listing

Imaging of colorectal cancer liver metastases using contrast-enhanced US, multidetector CT, MRI, and FDG PET/CT: a meta-analysis.

Acta Radiol 2020 Jun 6:284185120925481. Epub 2020 Jun 6.

Department of Clinical Radiology, School of Health Sciences, Faculty of Medicine, University of Ioannina, Ioannina, Greece.

Background: Imaging of colorectal cancer liver metastases (CRCLMs) has improved in recent years. Therefore, the role of current imaging techniques needs to be defined.

Purpose: To assess the diagnostic performance of contrast-enhanced ultrasound (CEUS), multidetector computed tomography (MDCT), magnetic resonance imaging (MRI), and fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT in the detection of CRCLMs. Read More

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http://dx.doi.org/10.1177/0284185120925481DOI Listing

Free-breathing contrast-enhanced upper abdominal MRI in children: comparison between Cartesian acquisition and stack-of-stars acquisition with two different fat-suppression techniques.

Acta Radiol 2020 Jun 4:284185120928931. Epub 2020 Jun 4.

Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.

Background: Respiratory artifacts impair image quality of magnetic resonance imaging (MRI) in children who cannot hold breath during MRI examination.

Purpose: To compare the quality of free-breathing contrast-enhanced 3D T1-weighted (T1W) images of the upper abdomen in children using Cartesian acquisition (Cartesian eTHRIVE), stack-of-stars acquisition with spectral fat suppression (3D VANE eTHRIVE), and stack-of-stars acquisition with fat suppression using modified Dixon (3D VANE mDixon).

Material And Methods: Pediatric patients (aged <19 years) who underwent whole-body MRI with free-breathing contrast-enhanced T1W axial scans of upper abdomen using Cartesian eTHRIVE, 3D VANE eTHRIVE, and 3D VANE mDixon were enrolled. Read More

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http://dx.doi.org/10.1177/0284185120928931DOI Listing
June 2020
1.350 Impact Factor

Trans-arterial chemoembolization with degradable starch microspheres (DSM-TACE) versus selective internal radiation therapy (SIRT) in multifocal hepatocellular carcinoma.

Acta Radiol 2020 Jun 4:284185120926474. Epub 2020 Jun 4.

Department of Radiology, Charité - University Medicine Berlin, Berlin, Germany.

Background: To date there is no therapy consensus in patients with multifocal hepatocellular carcinoma (mHCC).

Purpose: To compare outcome of trans-arterial chemoembolization (TACE) with degradable starch microspheres (DSM-TACE) versus selective internal radiation therapy (SIRT) in mHCC.

Material And Methods: In this single-center study, 36 patients without portal vein invasion, treated between May 2014 and May 2018, were enrolled retrospectively. Read More

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http://dx.doi.org/10.1177/0284185120926474DOI Listing

Periportal fields cause stronger cooling effects than veins in hepatic microwave ablation: an in vivo porcine study.

Acta Radiol 2020 Jun 3:284185120928929. Epub 2020 Jun 3.

Department of General, Visceral and Vascular Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.

Background: Vascular cooling effects are a well-known source for tumor recurrence in thermal in situ ablation techniques for hepatic malignancies. Microwave ablation (MWA) is an ablation technique to be considered in the treatment of malignant liver tumors. The impact of vascular cooling in MWA is still controversial. Read More

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http://dx.doi.org/10.1177/0284185120928929DOI Listing

Ultrasonographic characteristics of medullary thyroid carcinoma according to nodule size: application of the Korean Thyroid Imaging Reporting and Data System and American Thyroid Association guidelines.

Acta Radiol 2020 Jun 3:284185120929699. Epub 2020 Jun 3.

Department of Radiology and Center for Imaging Science, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.

Background: Few studies have categorized ultrasound (US) findings of various sized medullary thyroid carcinomas (MTCs) according to updated guidelines.

Purpose: To evaluate and compare the differences in US findings of MTC according to nodule size, using the Korean Thyroid Imaging Reporting and Data System (K-TIRADS) and American Thyroid Association (ATA) guidelines.

Material And Methods: The study included 119 patients with 129 MTC nodules, which were surgically confirmed at our institution between March 1999 and September 2017. Read More

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http://dx.doi.org/10.1177/0284185120929699DOI Listing

New Section Editor: Cardiac and Cardiovascular Imaging.

Authors:
Henrik S Thomsen

Acta Radiol 2020 Jun 2:284185120926880. Epub 2020 Jun 2.

Editor in Chief, Acta Radiologica.

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http://dx.doi.org/10.1177/0284185120926880DOI Listing