9,368 results match your criteria Clinical Radiology[Journal]


The rate of brain abnormalities on in utero MRI studies in fetuses with normal ultrasound examinations of the brain and calculation of indicators of diagnostic performance.

Clin Radiol 2019 Apr 12. Epub 2019 Apr 12.

Academic Unit of Radiology, University of Sheffield, Sheffield, UK.

Aim: To estimate the rate of unexpected brain abnormalities detected by in utero magnetic resonance imaging (iuMRI) in fetuses without abnormalities at ultrasonography (USS).

Materials And Methods: A prospective cohort study of pregnant women whose fetus had no structural brain (or body) abnormalities recognised on antenatal ultrasonography. Women were recruited from 12 centres across the UK and underwent iuMRI at 18 gestational weeks or more in the [blinded for review]. Read More

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http://dx.doi.org/10.1016/j.crad.2019.03.010DOI Listing

Imaging features of pure mucinous breast carcinoma: correlation with extracellular mucus content.

Clin Radiol 2019 Apr 6. Epub 2019 Apr 6.

Department of Ultrasound, Zhongshan Hospital Fudan University, 180 Fenglin Rd, Xuhui District, Shanghai 200032, China; Shanghai Institute of Medical Imaging, Shanghai 200032, PR China.

Aim: To analyse the correlation between imaging features using multiple techniques and extracellular mucus content in pure mucinous breast carcinoma (PMBC).

Materials And Methods: A retrospective review of available images from 25 patients with 25 PMBC tumours was conducted, with ultrasonography (US), ultrasonic elastography (USE), mammography, and breast-specific gamma imaging (BSGI) available for 25, 15, 11, and eight patients, respectively. Microscopic slides from each tumour were evaluated for extracellular mucus content. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00099260193014
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http://dx.doi.org/10.1016/j.crad.2019.01.031DOI Listing
April 2019
3 Reads

Optimising MRI small bowel techniques.

Clin Radiol 2019 Apr 6. Epub 2019 Apr 6.

Gastrointestinal Imaging Group, Department of Radiology, University Hospitals of Leicester NHS Trust, Leicester General Hospital, Leicester LE5 4PW, UK.

Magnetic resonance imaging (MRI)-based techniques have emerged as the preferred technique for the diagnostic evaluation of the small intestine, particularly in the adult population. The lack of ionising radiation makes MRI ideal for use in younger patients or in cases that require repeated follow-up investigations. Imaging of the small intestine may be carried out using the intubation (enteroclysis) or the ingestion (enterography) techniques. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00099260193014
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http://dx.doi.org/10.1016/j.crad.2019.03.007DOI Listing
April 2019
1 Read

Accuracy of ultrasonography in the assessment of liver fat compared with MRI.

Clin Radiol 2019 Apr 5. Epub 2019 Apr 5.

Institute of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Germany; Institute and Policlinic of Diagnostic and Interventional Radiology, Carl-Gustav-Carus University, TU Dresden, Dresden, Germany. Electronic address:

Aim: To investigate the accuracy of ultrasonography in the assessment of hepatic steatosis using magnetic resonance imaging (MRI) as standard of reference and to explore the influence of additional hepatic iron overload.

Material And Methods: A total of 2,783 volunteers (1,442 women, 1,341 men; mean age, 52.3±13. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.014DOI Listing

Prostate artery embolisation: an all-comers, single-operator experience in 159 patients with lower urinary tract symptoms, urinary retention, or haematuria with medium-term follow-up.

Clin Radiol 2019 Apr 5. Epub 2019 Apr 5.

Department of Interventional Radiology, Guy's & St Thomas' NHS Foundation Trust, London, UK.

Aim: To describe the authors' experience with prostate artery embolisation (PAE) to treat lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH) or refractory haematuria of prostatic origin (RHOPA).

Materials And Methods: PAE was attempted in 159 patients. Procedural details, pre/post-PAE symptom scores, and pre/post-PAE magnetic resonance imaging (MRI) data were recorded. Read More

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http://dx.doi.org/10.1016/j.crad.2019.03.006DOI Listing

The "vermian-crest angle": does it allow accurate categorisation of fetal upward rotation of cerebellar vermis on intrauterine MRI? A pilot study.

Clin Radiol 2019 Apr 3. Epub 2019 Apr 3.

Department of Obstetrics and Gynecology, University of Bern, Bern, Switzerland.

Aim: To test a new parameter to assess the position of the fetal cerebellar vermis in the posterior fossa (PF) using intrauterine magnetic resonance imaging (MRI).

Materials And Methods: The angle between the cerebellar vermis and the internal occipital crest (vermian-crest angle, VCA) was assessed retrospectively using MRI in fetuses with and without PF anomalies. Spearman's rank test was used to investigate correlation of the VCA with gestational age (GA). Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.017DOI Listing

Using a checklist to assess if a child undergoing MRI needs general anaesthesia.

Clin Radiol 2019 Apr 4. Epub 2019 Apr 4.

Department of Diagnostic & Interventional Imaging, KK Women's and Children's Hospital, 100 Bukit Timah Road, 229899, Singapore. Electronic address:

Aim: To assess if a child-assessment checklist covering tasks children are expected to perform during magnetic resonance imaging (MRI) can determine whether the child requires general anaesthesia (GA) during MRI.

Materials And Methods: In this institute review board approved study, children who underwent MRI from September 2016 to June 2017 at KK Women's and Children's Hospital were assessed using a checklist by a research assistant before their examination. During this project, the checklist had no influence on whether the MRI was performed under GA or not. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.015DOI Listing

A closer look at right ventricular 3D volume quantification by transthoracic echocardiography and cardiac MRI.

Clin Radiol 2019 Apr 4. Epub 2019 Apr 4.

Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Germany.

Aim: To compare right ventricular (RV) volumetry using state-of-the-art three-dimensional (3D) transthoracic echocardiography (3DE) and cardiac magnetic resonance imaging (CMR) near-simultaneously in a clinical setting.

Materials And Methods: Forty-seven consecutive patients received comprehensive echocardiography including 3DE within 30 minutes of CMR. RV volumetry was performed offline with semi-automated 3D endocardial border tracing as well as manual delineation of the compacted myocardium in short-axis views by CMR. Read More

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http://dx.doi.org/10.1016/j.crad.2019.03.005DOI Listing

Current imaging practice for suspected scaphoid fracture in patients with normal initial radiographs: UK-wide national audit.

Clin Radiol 2019 Apr 3. Epub 2019 Apr 3.

Department of Radiology, Warrington Hospital, Lovely Lane, Warrington, WA5 1QG, UK. Electronic address:

Aim: To assess the current practice of scaphoid fracture imaging (where initial scaphoid radiographs are normal) in the UK.

Materials And Methods: A survey monkey questionnaire was sent to 140 eligible NHS trusts derived from the NHS England database following exclusion of all non-acute and specialist centres. Four questions were asked regarding the provision of magnetic resonance imaging (MRI) for radiographically occult scaphoid fractures, time to MRI, number of departmental MRI scanners, and alternative imaging offered. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.016DOI Listing
April 2019
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Imaging of odontogenic sinusitis.

Clin Radiol 2019 Mar 26. Epub 2019 Mar 26.

Perth Radiological Clinic, Subiaco, WA, 6008, Australia; Department of Surgery, University of Western Australia, Nedlands, WA, 6009, Australia.

The aetiological relationship between dental disease and procedures and mucosal disease within the maxillary sinus has received extensive attention in the recent otolaryngological and dental literature. In contrast, the concept of an odontogenic cause for sinusitis is not well appreciated by radiologists. Review of the maxillary dentition, the alveolar process, and the relationship of the tooth roots to the floor of the maxillary sinus should be an integral part of interpretation of imaging of the paranasal sinuses. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.012DOI Listing

Pancreatic MRI associated with pancreatic fibrosis and postoperative fistula: comparison between pancreatic cancer and non-pancreatic cancer tissue.

Clin Radiol 2019 Mar 23. Epub 2019 Mar 23.

Department of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.

Aim: To evaluate the potential value of magnetic resonance imaging (MRI) for predicting postoperative pancreatic fistula (POPF) in patients with pancreatic cancer (PC) and non-pancreatic cancer (non-PC).

Material And Methods: This retrospective study was approved by the institutional review board and written informed consent was waived. Forty patients underwent pancreatoduodenectomy due to PC (n=31) and non-PC (n=9). Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.013DOI Listing

Degenerative tears of the posterior horn of the medial meniscus: correlation between MRI findings and outcome following intra-articular steroid/bupivacaine injection of the knee.

Clin Radiol 2019 Mar 23. Epub 2019 Mar 23.

Cappagh National Orthopaedic Hospital, Cappagh Road, Finglas West, Dublin 11, Ireland; Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland; Mater Private Hospital, Eccles Street, Dublin 7, Ireland.

Aim: To evaluate the response of symptomatic degenerative tears of the posterior horn of the medial meniscus to guided intra-articular knee steroid/bupivacaine injection and to correlate clinical outcomes with preprocedural findings at magnetic resonance imaging (MRI).

Materials And Methods: Sixty patients who had clinical and MRI evidence of a symptomatic degenerative tear of the posterior horn of the medial meniscus, isolated or accompanied by additional features of degenerative arthritis, who had failed conservative approaches (physiotherapy, non-steroidal anti-inflammatories, and 3 months rest/knee bracing) were included in the study. Patients underwent intra-articular knee steroid/bupivacaine injection and were followed clinically for a minimum of 6 months. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.007DOI Listing
March 2019
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Gallbladder polypoid lesions are inaccurately reported and undermanaged: a retrospective study of the management of gallbladder polypoid lesions detected at ultrasound in symptomatic patients during a 36-month period.

Clin Radiol 2019 Mar 23. Epub 2019 Mar 23.

Gwent Centre for Digestive Diseases, Royal Gwent Hospital, Newport, NP20 2UB, UK.

Aim: To investigate whether gallbladder polypoid lesions (GPL) are accurately reported and managed by radiologists, sonographers, general practitioners (GPs) and surgeons.

Materials And Methods: Consecutive abdominal ultrasound examinations indicating GPL in symptomatic patients performed during 2011-2013 were captured and analysed. The study comprised 244 patients who satisfied the inclusion criteria. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.009DOI Listing
March 2019
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Commentary on: evaluation of a newly developed 2D parametric parenchymal blood flow technique with an automated vessel suppression algorithm in patients with chronic thromboembolic pulmonary hypertension undergoing balloon pulmonary angioplasty.

Clin Radiol 2019 Mar 22. Epub 2019 Mar 22.

Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK; INSIGNEO, Institute for in Silico Medicine, University of Sheffield, UK.

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http://dx.doi.org/10.1016/j.crad.2019.02.011DOI Listing

Spectral CT and its specific values in the staging of patients with non-small cell lung cancer: technical possibilities and clinical impact.

Clin Radiol 2019 Mar 21. Epub 2019 Mar 21.

Department of Radiology, Charité University Medicine Berlin, Campus Virchow Klinikum, Berlin, Germany; Department of Radiology, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany. Electronic address:

Aim: To investigate how spectral computed tomography (SCT) values impact the staging of non-small cell lung cancer (NSCLC) patients.

Materials And Methods: One hundred and thirteen patients with confirmed NSCLC were included in a prospective cohort study. All patients underwent single-phase contrast-enhanced SCT (using the fast tube voltage switching technique, 80-140 kV). Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.010DOI Listing
March 2019
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Measuring the common canal of a persistent cloaca: can MRI replace conventional imaging?

Clin Radiol 2019 Mar 21. Epub 2019 Mar 21.

Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China. Electronic address:

Aim: To evaluate the role of MRI in preoperative assessments of patients with a persistent cloaca and compare magnetic resonance imaging (MRI) versus fluoroscopy contrast study in the accuracy of common canal measurement and classification prediction.

Materials And Methods: Thirty-one patients with a persistent cloaca were diagnosed and treated at Guangzhou Women and Children's Medical Center between March 2011 and December 2017. The length of the common canal was measured using MRI and fluoroscopy contrast study. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.023DOI Listing

Governance of automated image analysis and artificial intelligence analytics in healthcare.

Clin Radiol 2019 May 19;74(5):329-337. Epub 2019 Mar 19.

Department of Diagnostic Imaging, National University Hospital, Singapore.

The hype over artificial intelligence (AI) has spawned claims that clinicians (particularly radiologists) will become redundant. It is still moot as to whether AI will replace radiologists in day-to-day clinical practice, but more AI applications are expected to be incorporated into the workflows in the foreseeable future. These applications could produce significant ethical and legal issues in healthcare if they cause abrupt disruptions to its contextual integrity and relational dynamics. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00099260193011
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http://dx.doi.org/10.1016/j.crad.2019.02.005DOI Listing
May 2019
2 Reads

Pre-treatment F-FDG PET-based radiomics predict survival in resected non-small cell lung cancer.

Clin Radiol 2019 Mar 18. Epub 2019 Mar 18.

Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. Electronic address:

Aim: To assess the prognostic value of 2-[F]-fluoro-2-deoxy-d-glucose (FDG) positron-emission tomography (PET)-based radiomics using a machine learning approach in patients with non-small cell lung cancer (NSCLC).

Materials And Methods: Ninety-three patients with stage I-III NSCLC who underwent combined PET/computed tomography (CT) followed by curative resection. A total of 35 unique quantitative radiomic features was extracted from the PET images, which included imaging phenotypes such as pixel intensity, shape, and texture. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.008DOI Listing

Artificial intelligence in breast imaging.

Clin Radiol 2019 May 18;74(5):357-366. Epub 2019 Mar 18.

EPSRC Centre for Mathematical and Statistical Analysis of Multimodal Clinical Imaging, University of Cambridge, Cambridge CB3 0WA, UK; Department of Radiology, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Hills Road, Cambridge CB2 0QQ, UK. Electronic address:

This article reviews current limitations and future opportunities for the application of computer-aided detection (CAD) systems and artificial intelligence in breast imaging. Traditional CAD systems in mammography screening have followed a rules-based approach, incorporating domain knowledge into hand-crafted features before using classical machine learning techniques as a classifier. The first commercial CAD system, ImageChecker M1000, relies on computer vision techniques for pattern recognition. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.006DOI Listing
May 2019
1 Read

Evaluation of a newly developed 2D parametric parenchymal blood flow technique with an automated vessel suppression algorithm in patients with chronic thromboembolic pulmonary hypertension undergoing balloon pulmonary angioplasty.

Clin Radiol 2019 Mar 16. Epub 2019 Mar 16.

Department of Diagnostic and Interventional Radiology, Member of the German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany. Electronic address:

Aim: To evaluate the feasibility of two-dimensional parametric parenchymal blood flow (2D-PPBF) to quantify perfusion changes in the lung parenchyma following balloon pulmonary angioplasty (BPA) for treatment of chronic thromboembolic pulmonary hypertension.

Materials And Methods: Overall, 35 consecutive interventions in 18 patients with 98 treated pulmonary arteries were included. To quantify changes in pulmonary blood flow using 2D-PPBF, the acquired digital subtraction angiography (DSA) series were post-processed using dedicated software. Read More

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http://dx.doi.org/10.1016/j.crad.2018.12.023DOI Listing
March 2019
2 Reads

Erratum to "The National Institute for Health Research: making an impact in imaging research" [74 (3) 242-246].

Authors:
V Goh

Clin Radiol 2019 May 15;74(5):405. Epub 2019 Mar 15.

Department of Radiology, St Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK.

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http://dx.doi.org/10.1016/j.crad.2019.02.004DOI Listing

Undergraduate radiology education: foundation doctors' experiences and preferences.

Clin Radiol 2019 Mar 11. Epub 2019 Mar 11.

Royal United Hospital, Combe Park, Bath, Avon, BA1 3NG, UK.

Aim: To assess foundation doctors' experiences of undergraduate radiology teaching within the UK and preferences for radiology teaching delivery.

Materials And Methods: This was a retrospective multicentre study of foundation doctors. A questionnaire, designed using the Royal College of Radiologists Undergraduate Radiology Curriculum, was completed to determine how prepared foundation doctors felt in image interpretation by their undergraduate teaching. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.029DOI Listing
March 2019
2 Reads

Re: Undergraduate radiology education: junior doctors' experiences and preferences.

Authors:
M Sirakaya

Clin Radiol 2019 Mar 8. Epub 2019 Mar 8.

Department of Radiology, Royal Wolverhampton NHS Trust, Wolverhampton, UK. Electronic address:

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http://dx.doi.org/10.1016/j.crad.2019.01.030DOI Listing
March 2019
3 Reads

Magnetic resonance imaging assessment of the substrate for hyposmia in patients with Parkinson's disease.

Clin Radiol 2019 Mar 7. Epub 2019 Mar 7.

Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea. Electronic address:

Aim: To assess whether multimodal magnetic resonance imaging (MRI) could detect neuroanatomical substrates that are distinctive to hyposmic Parkinson's disease (PD).

Materials And Methods: Among 102 PD patients, 62 were hyposmic and 40 were normosmic. For each patient, a sagittal structural three-dimensional (3D) T1-weighted image was obtained with the magnetisation-prepared rapid acquisition of the gradient-echo sequence to generate subcortical grey matter masking templates and to perform a voxel-based morphometry analysis of the subcortical grey matter volumes. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.003DOI Listing
March 2019
5 Reads

Deep learning can see the unseeable: predicting molecular markers from MRI of brain gliomas.

Clin Radiol 2019 May 5;74(5):367-373. Epub 2019 Mar 5.

Department of Radiology, Mayo Clinic, 200 1st Street SW, Rochester, MN, 55905, USA. Electronic address:

This paper describes state-of-the-art methods for molecular biomarker prediction utilising magnetic resonance imaging. This review paper covers both classical machine learning approaches and deep learning approaches to identifying the predictive features and to perform the actual prediction. In particular, there have been substantial advances in recent years in predicting molecular markers for diffuse gliomas. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.028DOI Listing

Prostate cancer detection rate according to lesion visibility using ultrasound and MRI.

Clin Radiol 2019 Mar 4. Epub 2019 Mar 4.

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

Aim: To evaluate the difference in prostate cancer detection rates according to lesion visibility using transrectal ultrasound (TRUS) and magnetic resonance imaging (MRI) before biopsy.

Materials And Methods: Patients who underwent TRUS-guided prostate biopsy in 2016 and 2017 (n=1,022) were divided into three groups: (1) patients who did not undergo a prebiopsy MRI (group 1, n=622); (2) patients without visible lesions on the prebiopsy MRI (group 2, n=77); and (3) patients with visible lesions on the prebiopsy MRI (group 3, n=323). Biopsy results were compared using chi-square tests or independent t-tests between patients with and without TRUS-visible lesions in each group. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.002DOI Listing

British Society of Interventional Radiology Iliac Angioplasty and Stent Registry: fourth report on an additional 8,294 procedures.

Clin Radiol 2019 Mar 4. Epub 2019 Mar 4.

Department of Vascular Radiology, Leeds Teaching Hospitals NHS Trust, UK. Electronic address:

Aim: To provide an update of current practice in iliac artery intervention in the UK.

Materials And Methods: Ninety-nine interventional units across the UK completed online submission forms for iliac angioplasty and stent procedures between 2011 and 2014 (inclusive) for the British Iliac Angioplasty and Stenting (BIAS) IV registry.

Results: Data for 8,294 procedures were submitted during the study period. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.026DOI Listing

Efficacy and safety of transarterial chemoembolisation with cone-beam CT in patients with hepatocellular carcinoma within the Milan criteria: a retrospective cohort study.

Clin Radiol 2019 May 2;74(5):407.e19-407.e28. Epub 2019 Mar 2.

Centre for Liver Cancer, National Cancer Centre, Goyang-si, Gyeonggi-do, Republic of Korea.

Aim: To compare the therapeutic efficacy and safety of transarterial chemoembolisation (TACE) for hepatocellular carcinoma (HCC) within the Milan criteria with or without the use of cone-beam computed tomography (CBCT).

Materials And Methods: Patients with HCC within the Milan criteria who underwent conventional angiography-guided TACE (Angio-TACE group: 58 patients from January 2010 to December 2011) were compared with those who underwent CBCT-guided TACE (CBCT-TACE group: 55 patients from January 2013 to December 2014). Local progression-free survival (LPFS), progression-free survival (PFS), and overall survival (OS) were compared. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.024DOI Listing
May 2019
3 Reads

Lung nodules are reliably detectable on ultra-low-dose CT utilising model-based iterative reconstruction with radiation equivalent to plain radiography.

Clin Radiol 2019 May 1;74(5):409.e17-409.e22. Epub 2019 Mar 1.

General Medicine, Monash Health, Clayton, Victoria, Australia; Monash Imaging, Monash Health, Clayton, Victoria, Australia.

Aim: To determine if ultra-low-dose (ULD) computed tomography (CT) utilising model-based iterative reconstruction (MBIR) with radiation equivalent to plain radiography allows the detection of lung nodules.

Materials And Methods: Ninety-nine individuals undergoing surveillance of solid pulmonary nodules undertook a low-dose (LD) and ULD CT during the same sitting. Image pairs were read blinded, in random order, and independently by two experienced thoracic radiologists. Read More

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http://dx.doi.org/10.1016/j.crad.2019.02.001DOI Listing
May 2019
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Utilisation of contrast-enhanced magnetic resonance angiography in the assessment of deep inferior epigastric artery perforator flap for breast reconstruction surgery.

Clin Radiol 2019 Mar 1. Epub 2019 Mar 1.

Department of Plastic Surgery, Hull Royal Infirmary, Anlaby Road, HU3 2JZ, Hull, UK.

Aim: To identify and characterise the ideal-sized (defined as at least 2.7 mm based on the experience of plastic surgeons at Hull Royal Infirmary) perforators using magnetic resonance angiography (MRA). The study also evaluated a presumption that perforators on the left are generally larger than on the right. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.027DOI Listing
March 2019
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A pragmatic approach to the imaging and follow-up of solitary central cartilage tumours of the proximal humerus and knee.

Clin Radiol 2019 Feb 28. Epub 2019 Feb 28.

The Department of Radiology, The Royal Orthopaedic Hospital, Bristol Road South, Birmingham B31 2AP, UK.

Central cartilage tumours of bone range from the benign enchondroma to the malignant chondrosarcoma. They are an incidental finding in up to 2.8% of routine magnetic resonance imaging (MRI) examinations performed of the shoulder and knee. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.025DOI Listing
February 2019

Factors impacting on technical success in stroke thrombectomy: experience of a UK neuro-interventional unit.

Clin Radiol 2019 May 28;74(5):390-398. Epub 2019 Feb 28.

Department of Neuroradiology, North Bristol NHS Trust, Southmead Hospital, Bristol BS10 5NB, UK. Electronic address:

Aim: To investigate factors that could impact on recanalisation and reperfusion in patients undergoing mechanical thrombectomy and to assess the technical success over time.

Materials And Methods: Two hundred consecutive patients who underwent thrombectomy for a proximal anterior circulation occlusion were dichotomised into equal groups (groups 1 and 2) based on the date that immediate access to emergency general anaesthesia (GA) commenced.

Results: Recanalisation success using thrombolysis in cerebral infarction (TICI) 2b/3 or TICI 2c/3 significantly improved in group 2 (67% versus 93%, p<0. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.022DOI Listing

Questionable correlation of the apparent diffusion coefficient with the histological grade and microvascular invasion in small hepatocellular carcinoma.

Clin Radiol 2019 May 28;74(5):406.e19-406.e27. Epub 2019 Feb 28.

Mathematics, Ajou University, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea.

Aim: To evaluate the correlation between the apparent diffusion coefficient (ADC) and various histopathological parameters in small hepatocellular carcinomas (HCCs).

Materials And Methods: In 143 surgically resected small HCCs, the mean and minimum ADC values, tumour-to-liver ADC ratio, and normalised ADC (ADC of the HCC/ADC of the spleen) were correlated to the tumour grade, microvascular invasion (MVI), cellularity, fatty change, degree of fibrosis, and lymphocytic infiltration using linear regression analysis, the Wilcoxon rank sum test, or Spearman's rank correlation.

Results: No significant correlation was found between the ADC parameters and tumour grade. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.019DOI Listing
May 2019
3 Reads

T2 prolongation in the cerebellar vermis on prenatal MRI of fetuses with Chiari 2 malformations.

Clin Radiol 2019 May 26;74(5):408.e19-408.e25. Epub 2019 Feb 26.

Academic Unit of Radiology, University of Sheffield, Sheffield, UK. Electronic address:

Aim: To describe a new finding in fetuses with Chiari 2 malformations recognised at in utero (iu) magnetic resonance imaging (MRI), specifically T2 prolongation (high signal) in the cerebellar vermis.

Materials And Methods: This was a prospective observational study of iuMRI studies performed at two time points on 20 fetuses with Chiari 2 malformations and 10 control fetuses at the same time points. High T2 signal in the cerebellar vermis was noted and correlated with posterior fossa dimensions was assessed. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.001DOI Listing

Quantitative factors of unenhanced CT for predicting fragmenting efficacy of extracorporeal shock wave lithotripsy on pancreatic duct stones.

Clin Radiol 2019 May 23;74(5):408.e1-408.e7. Epub 2019 Feb 23.

Department of Radiology, Changhai Hospital Affiliated to the Second Military Medical University, Changhai Road 168, Yangpu District, Shanghai, 200433 PR China. Electronic address:

Aim: To find potential predictors at unenhanced computed tomography (CT) to evaluate the stone clearance rate (SCR) of pancreatic duct stones (PDS) by extracorporeal shock wave lithotripsy (ESWL).

Materials And Methods: A total of 106 consecutive patients with multiple stones of maximal transverse length (MTL) 0.3-3. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.018DOI Listing

Machine learning in whole-body MRI: experiences and challenges from an applied study using multicentre data.

Clin Radiol 2019 May 23;74(5):346-356. Epub 2019 Feb 23.

Imperial College Comprehensive Cancer Imaging Centre (C.C.I.C.), Hammersmith Campus, Commonwealth Building Main Office, Ground Floor, Du Cane Road, London W12 0NN, UK; Department of Radiology Hammersmith Hospital, Imperial College Healthcare NHS Trust, Du Cane Road, London W12 0NN, UK.

Machine learning is now being increasingly employed in radiology to assist with tasks such as automatic lesion detection, segmentation, and characterisation. We are currently involved in an National Institute of Health Research (NIHR)-funded project, which aims to develop machine learning methods to improve the diagnostic performance and reduce the radiology reading time of whole-body magnetic resonance imaging (MRI) scans, in patients being staged for cancer (MALIBO study). We describe here the main challenges we have encountered during the course of this project. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.012DOI Listing
May 2019
1 Read

Breast arterial calcification on mammography and risk of coronary artery disease: a SCOT-HEART sub-study.

Clin Radiol 2019 Feb 22. Epub 2019 Feb 22.

University of Edinburgh/British Heart Foundation Centre for Cardiovascular Science, Edinburgh, UK; Edinburgh Imaging Facility QMRI, University of Edinburgh, Edinburgh, UK. Electronic address:

Aim: To assess the prevalence of breast arterial calcification (BAC) in patients who also underwent routine surveillance mammography, and to determine the association with cardiovascular risk factors, coronary artery calcification, and coronary artery disease on coronary computed tomography angiography (CCTA).

Materials And Methods: Four hundred and five female participants were identified who had undergone CCTA and subsequent mammography in the SCOT-HEART randomised controlled trial of CCTA in patients with suspected stable angina. Mammograms were assessed visually for the presence and severity of BAC. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.014DOI Listing
February 2019

Comparison of cardiac MRI with PET for assessment of myocardial viability in patients with coronary chronic total occlusion.

Clin Radiol 2019 May 22;74(5):410.e1-410.e9. Epub 2019 Feb 22.

Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.

Aim: To compare cardiac magnetic resonance imaging (MRI) and positron-emission tomography (PET) assessment of myocardial viability in patients with coronary chronic total occlusion (CTO).

Materials And Methods: Eighty patients with coronary CTO underwent cardiac MRI and PET. Cardiac MRI images were analysed using a 17-segment model, and late gadolinium enhancement (LGE) and wall motion were scored. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.021DOI Listing
May 2019
1 Read

Knowledge of radiation legislation and guidelines amongst foundation doctors is inadequate for safe practice in the current era of radiology.

Authors:
J A Cohen

Clin Radiol 2019 Feb 22. Epub 2019 Feb 22.

Institute of Health Sciences Education, Queen Mary University of London, UK. Electronic address:

It is important for safe practice in radiology that junior doctors are aware of the guidelines and legislation surrounding ionising radiation; however, it has been demonstrated over many years that knowledge in these areas is poor with potential impacts on patient safety. As the reliance of the National Health Service (NHS) on radiological imaging increases, it is vital that lasting intervention is implemented to prevent harm. This commentary highlights key issues in this area with results from a recent audit and suggests potential solutions. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.020DOI Listing
February 2019

Imaging features of metanephric adenoma and their pathological correlation.

Clin Radiol 2019 May 22;74(5):408.e9-408.e17. Epub 2019 Feb 22.

Department of Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, 266555, China.

Aim: To analyse the imaging features of metanephric adenoma (MA) and their pathological correlation.

Materials And Methods: The imaging findings in 11 patients with MA were studied retrospectively. Ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI) findings were studied in seven, 11, and six patients, respectively. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.013DOI Listing

Assessment of liver cirrhosis for patients with Child's A classification before hepatectomy using dynamic contrast-enhanced MRI.

Clin Radiol 2019 May 21;74(5):407.e11-407.e17. Epub 2019 Feb 21.

Department of Chemistry and Biochemistry, National Chung Cheng University, Chiayi, Taiwan; Center for NanoBiodetection, National Chung Cheng University, Chiayi, Taiwan; Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan. Electronic address:

Aim: To determine the feasibility of semi-quantitative haemodynamic parameters derived from dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) to assess liver fibrosis.

Materials And Methods: Seventy-five patients with Child's A classification (males/females=24/51; average age, 58 years; range, 30-80 years) received DCE-MRI 3 days prior to hepatectomy. Semi-quantitative haemodynamic parameters, including the wash-in slope, wash-out slope, and time-to-peak, were calculated from DCE-MRI data. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.017DOI Listing
May 2019
1 Read

Imaging features of combined hepatocellular and cholangiocarcinoma compared with those of hepatocellular carcinoma and intrahepatic cholangiocellular carcinoma in a Chinese population.

Clin Radiol 2019 May 21;74(5):407.e1-407.e10. Epub 2019 Feb 21.

Department of Radiology, State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, Guangzhou, 510060, PR China. Electronic address:

Aim: To determine the enhanced computed tomography (CT) and magnetic resonance imaging (MRI) characteristics of combined hepatocellular carcinoma and cholangiocarcinoma (cHCC-CC) in Chinese patients.

Materials And Methods: Patients with histopathologically proven cHCC-CC (n=54) were compared with hepatocellular carcinoma (HCC; n=41) and cholangiocellular carcinoma (CCC; n=41) patients. Clinical information was measured in all patients. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.016DOI Listing

An analysis of 11.3 million screening tests examining the association between needle biopsy rates and cancer detection rates in the English NHS Breast Cancer Screening Programme.

Clin Radiol 2019 May 21;74(5):384-389. Epub 2019 Feb 21.

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

Aim: To examine the association between recall, needle biopsy, and cancer detection rates to inform the setting of target ranges to optimise the benefit to harm ratio of breast screening programmes.

Materials And Methods: Annual screening programme information from 2009/10 to 2015/16 for the 80 screening units of the English National Health Service Breast Screening Programme (totalling 11.3 million screening tests) was obtained from annual (KC62) returns. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.015DOI Listing

Diagnosis of solitary pulmonary lesions with intravoxel incoherent motion diffusion-weighted MRI and semi-quantitative dynamic contrast-enhanced MRI.

Clin Radiol 2019 May 19;74(5):409.e7-409.e16. Epub 2019 Feb 19.

Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095# Jiefang Road, Qiaokou District, Wuhan, Hubei, China. Electronic address:

Aim: To evaluate the diagnostic value of intravoxel incoherent motion (IVIM) diffusion-weighted (DWI) magnetic resonance imaging (MRI) and semi-quantitative dynamic contrast-enhanced MRI (DCE-MRI) to help diagnose indeterminate solitary pulmonary lesions (SPLs) and the subgroups of lung cancer (LC), and to explore the relationship between IVIM and DCE-MRI.

Materials And Methods: Sixty-four consecutive patients (44 male, 20 female; age, 52.77±10. Read More

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http://dx.doi.org/10.1016/j.crad.2018.12.022DOI Listing

Do we need to perform MRI of the whole spine in addition to MRI of the sacroiliac joints in suspected spondyloarthropathy?

Clin Radiol 2019 May 18;74(5):409.e1-409.e6. Epub 2019 Feb 18.

Department of Radiology, University Hospitals of Morecambe Bay NHS Trust, Royal Lancaster Infirmary, Ashton Road, Lancaster, LA1 4RP, UK.

Aim: To identify the incidence of spinal-only changes (including both acute inflammatory and chronic structural changes) in patients with suspected spondyloarthropathy (SpA) to determine whether MRI of the sacroiliac joints would be sufficient in the initial radiological work-up and whether the number of spinal magnetic resonance imaging (MRI) examinations performed could be reduced.

Materials And Methods: This was a retrospective study of patients with suspected SpA referred from the rheumatology department of a university teaching hospital undergoing MRI both of the whole spine and of the sacroiliac joints over a 3-year period. Imaging was assessed for the presence of acute inflammatory and chronic structural changes. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.008DOI Listing

Parenchymal hyperdensity on C-arm CT images after endovascular therapy for acute ischaemic stroke predicts a poor prognosis.

Clin Radiol 2019 May 14;74(5):399-404. Epub 2019 Feb 14.

Department of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Fujian, China.

Aim: To investigate whether hyperdense areas (HDAs) observed after endovascular treatment on multisection computed tomography (CT) are related to outcome.

Materials And Methods: Data on 82 patients with acute anterior circulation ischaemic stroke resulting from intracranial large artery occlusion were analysed retrospectively All patients underwent mechanical thrombectomy and/or emergency angioplasty, and partial or complete recanalisation was successfully achieved. C-arm CT was performed immediately after endovascular treatment for all patients. Read More

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http://dx.doi.org/10.1016/j.crad.2019.01.009DOI Listing

Re: an assessment of ultrasound screening for soft tissue lumps from primary care. A reply.

Clin Radiol 2019 Apr 15;74(4):324. Epub 2019 Feb 15.

Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK.

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http://dx.doi.org/10.1016/j.crad.2019.01.010DOI Listing
April 2019
1 Read

Comparing the value of DKI and DTI in detecting isocitrate dehydrogenase genotype of astrocytomas.

Clin Radiol 2019 Apr 14;74(4):314-320. Epub 2019 Feb 14.

Department of Radiology, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China.

Aim: To compare the value of diffusion kurtosis imaging (DKI) and diffusion tensor imaging (DTI) in evaluating astrocytomas with an isocitrate dehydrogenase (IDH) genotype.

Materials And Methods: Fifty-eight astrocytomas were divided into IDH-wild-type (IDH-W) and IDH-mutant (IDH-M) groups, in all astrocytomas, low-grade astrocytomas (LGA) and high-grade astrocytomas (HGA), respectively. The DKI (mean kurtosis [MK], radial kurtosis [Kr], axial kurtosis [Ka]), and DTI (fractional anisotropy [FA], mean diffusivity [MD]) values were measured. Read More

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http://dx.doi.org/10.1016/j.crad.2018.12.004DOI Listing

Frequency and risk factors of thoracic metastases and optimisation of the use of cross-sectional chest imaging in follow-up patients with cervical cancer.

Clin Radiol 2019 Apr 13;74(4):326.e1-326.e8. Epub 2019 Feb 13.

Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.

Aim: To optimise cross-sectional chest imaging usage by identifying frequency and risk factors associated with thoracic metastases in cervical cancer patients after initial definitive treatment.

Materials And Methods: This study, conducted during 2004-2015, examined 361 consecutive patients with histopathologically proven cervical carcinoma with at least 1 year of follow-up. Electronic medical records and all available imaging modes were used to record and assess patient and tumour characteristics and timing of thoracic metastases. Read More

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http://dx.doi.org/10.1016/j.crad.2018.11.014DOI Listing

Re: Radiology-led lung cancer escalation pathway: a stream lined innovative service.

Authors:
J Cox J Spratt

Clin Radiol 2019 Apr 13;74(4):321-322. Epub 2019 Feb 13.

City Hospitals Sunderland NHS Foundation Trust, Sunderland, Tyne and Wear, UK.

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http://dx.doi.org/10.1016/j.crad.2018.11.015DOI Listing