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Clinical Radiology

N Di, W Cheng, H Chen, F Zhai, Y Liu, X Mu, Z Chu, N Lu, X Liu, B Wang
AIM: To evaluate the ability of arterial spin labelling (ASL) magnetic resonance imaging (MRI) in differentiating primary central nervous system lymphoma (PCNSL) from atypical high-grade glioma (HGG), as well as exploring the underlying pathological mechanisms. METHODS AND MATERIALS: Twenty-three patients with PCNSL and 17 patients with atypical HGG who underwent ASL-MRI were identified retrospectively. Absolute cerebral blood flow (aCBF) and normalised cerebral blood flow (nCBF) values were obtained, and were compared between PCNSL and atypical HGG using the Mann-Whitney U-test...
November 8, 2018: Clinical Radiology
M Daneshi, G T Yusuf, C Fang, M E Sellars, D Y Huang, P S Sidhu
AIM: To establish the feasibility and accuracy of contrast-enhanced ultrasound (CEUS) nephrostogram in comparison to the reference standard, fluoroscopic nephrostogram, in providing alternative imaging of the urinary tract post-nephrostomy insertion. MATERIALS AND METHODS: This prospective study was approved by the institutional and national ethics committee. All patients for whom a fluoroscopic nephrostogram was requested were included. Fluoroscopic and CEUS nephrostograms were performed within 24 hours...
November 8, 2018: Clinical Radiology
C-Q Su, S-S Lu, M-D Zhou, H Shen, H-B Shi, X-N Hong
AIM: To examine whether texture analysis (TA) of diffusion-weighted imaging (DWI) combined with conventional magnetic resonance imaging (MRI) could non-invasively predict isocitrate dehydrogenase 1 (IDH1) mutational status in anaplastic gliomas. MATERIALS AND METHODS: Fifty-two patients with histologically confirmed anaplastic glioma was reviewed retrospectively. Conventional MRI was evaluated using the Visually Accessible Rembrandt Images (VASARI) scoring system...
October 31, 2018: Clinical Radiology
Y-L He, N Ding, Y-F Qi, Y Li, Y Xiang, T-Y Qian, H Liu, C-Y Lin, L Yuan, H-L Zhou, Z-Y Jin, H-D Xue
AIM: To investigate whether there is an optimal time in the menstrual cycle to obtain the best image quality of uterine zonal structures with high-field magnetic resonance imaging (MRI). MATERIALS AND METHODS: Thirty-eight normal volunteers with regular menstrual cycles underwent pelvic 3 T high-resolution T2-weighted three-dimensional (3D) turbo spin echo (TSE) with variable flip angle MRI examinations during the menstrual phase (MP), follicular phase (FP), peri-ovulatory phase (OP), and luteal phase (LP)...
October 30, 2018: Clinical Radiology
N Al-Khudairi, M J Welck, B Brandao, A Saifuddin
AIM: To investigate the relationship between magnetic resonance imaging (MRI) findings and clinical features in patients with os naviculare. MATERIALS AND METHODS: All patients with a foot or ankle MRI study showing an os naviculare were identified from a specialist orthopaedic hospital between 2014 and 2017. A total of 110 patients with 133 os naviculare were included. The MRI features were recorded, as well as the presence or absence of medial foot pain and/or tenderness over the navicular tuberosity...
October 27, 2018: Clinical Radiology
C von Stempel, J Hague, J Brookes
AIM: To investigate inferior vena cava (IVC) filter retrievals and the use of the excimer laser sheath to assist in complex cases. MATERIALS AND METHODS: Retrospective analysis was undertaken of 181 attempted filter retrievals over a 6 year period. Pre- and perioperative imaging was analysed from both standard retrieval and complex retrieval techniques. RESULTS: One hundred and eighty-one IVC filter retrievals were attempted: 130 (72%) standard retrievals were successful and 51 (28%) failed due to device endothelialisation...
October 23, 2018: Clinical Radiology
A Nanapragasam, C K Lim, G Maskell
No abstract text is available yet for this article.
October 23, 2018: Clinical Radiology
X J Ye, S H Cui, J W Song, K Liu, X Y Huang, L Wang, Y J Zhou, Z H Yan, G B Wang
AIM: To investigate the clinical value of diffusion tensor imaging (DTI) in assessing renal function changes in diabetic patients with early-stage chronic kidney disease (CKD), and the relationship of DTI parameters with estimated glomerular filtration rate (eGFR) and urinary biomarkers. MATERIALS AND METHODS: Thirty-six patients with diabetes mellitus (DM; 30 CKD stage 1 and 6 CKD stage 2) and 26 healthy control subjects were enrolled. DTI was performed using a clinical 3 T MRI system...
October 22, 2018: Clinical Radiology
S Usmani, G Gnanasegaran, F Marafi, A Esmail, N Ahmed, T Van den Wyngaert
18 F-sodium fluoride (NaF) is a PET bone imaging agent and is commonly used in imaging patients with cancer; however, similar to technetium-99m medronic acid (99m Tc-MDP), it can be useful in the evaluation of benign bone and joint conditions. NaF is an excellent bone-seeking agent with high bone uptake due to rapid single-pass extraction. It has negligible plasma protein binding, rapid blood, renal clearance, high bone uptake and almost all NaF delivered is retained by bone after a single pass of blood; however, uptake of NaF can be observed in non-osseous structures such as the arterial vasculature, gastrointestinal tract, genitourinary tract, and viscera...
October 16, 2018: Clinical Radiology
M Petrini, M Alì, P M Cannaò, D Zambelli, A Cozzi, M Codari, A E Malavazos, F Secchi, F Sardanelli
AIM: To compare the amount of epicardial adipose tissue (EAT) in patients with coronary artery disease (CAD) or non-ischaemic dilated cardiomyopathy (NIDCM) with that in patients with negative cardiac magnetic resonance imaging (CMR). MATERIALS AND METHODS: One hundred and fifty patients (median age 57 years, interquartile range [IQR] 46-66 years) who underwent CMR were evaluated retrospectively: 50 with CAD, 50 with NIDCM, and 50 with negative CMR. For each patient, the EAT mass index (EATMI) to body surface area, end-diastolic volume index (EDVI), end-systolic volume index (ESVI), stroke volume (SV), ejection fraction (EF) for both ventricles, and left ventricle (LV) mass index were estimated...
October 15, 2018: Clinical Radiology
S Zabala-Travers, B D Gallas, S Busoni, M C Williams, L Noferini, L Fedeli, S Lucarini, L Galastri, S Mirsadraee, A Badano
AIM: To investigate the effect of colour scale choice on diagnostic performance in the interpretation of medical images. MATERIALS AND METHODS: Twelve clinicians interpreted 210 myocardial computed tomography (CT) perfusion (CTP) examinations, and nine clinicians interpreted 165 magnetic resonance imaging (MRI) apparent diffusion coefficient (ADC) prostate images. In three separate sessions, each participant read the same image set using greyscale, hot-iron, and rainbow scales, respectively...
October 15, 2018: Clinical Radiology
N Jain, H Al-Hasani, A Kalic, F Gill, H Abboudi
AIM: To assess the quality of YouTube videos explaining transrectal ultrasound (TRUS)-guided biopsies of the prostate. MATERIALS AND METHODS: A search of YouTube was made for the terms "TRUS", "TRUS biopsy", "transrectal ultrasound", and "prostate biopsy". Videos were selected from the first 10 pages of results and reviewed by three authors against criteria based on written information from the British Association of Urological Surgeons...
October 12, 2018: Clinical Radiology
T C Booth, R deP M Martins, L McKnight, K Courtney, R Malliwal
The Fellowship of the Royal College of Radiologists (FRCR) examination is the professional qualification that is essential for career progression in clinical radiology within the UK. It is also important for career progression in many countries internationally. The FRCR has evolved and changed over the last decade. In this systematic review we appraise and summarise the available data relating to the FRCR emphasising the published evidence regarding the validity, reliability, and acceptability of this examination...
October 12, 2018: Clinical Radiology
S Narayanasamy, S Krishna, A K Prasad Shanbhogue, T A Flood, N Sadoughi, P Sathiadoss, N Schieda
This article presents an updated review of cystic renal mass imaging. Most cystic renal masses encountered incidentally are benign and can be diagnosed confidently on imaging and require no follow-up. Hyperattenuating masses discovered at unenhanced or single-phase enhanced computed tomography (CT) measuring between 20-70 HU are indeterminate and can be further investigated first by using ultrasound and, then with multi-phase CT or magnetic resonance imaging (MRI); as the majority represent haemorrhagic/proteinaceous cysts (HPCs)...
October 9, 2018: Clinical Radiology
C Liu, H W Li, L Wang, L Zhu, X F Jiang, M J Yang, B Li, C Zhang, H F Yang, X X Xu
AIM: To assess the diagnostic value of the apparent diffusion coefficient (ADC) and fractional anisotropy (FA) of diffusion tensor imaging (DTI) at several anatomical locations in patients with carpal tunnel syndrome (CTS) to explore the optimal parameters and measurement location. MATERIALS AND METHODS: A search was conducted using the PubMed, EBSCO, Ovid, Web of Science, and Cochrane databases to identify articles relevant to this study published before September 2017...
October 9, 2018: Clinical Radiology
I-C Chiang, W-S Chuang, I-T Hang, Y-T Kuo, T-J Hsieh
AIM: To evaluate efficacy of T2-weighted (T2W) iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL)-fast spin echo (FSE) imaging of the cervical spine. MATERIALS AND METHODS: The cervical spine of 100 symptomatic patients was imaged using routine magnetic resonance imaging (MRI) versus IDEAL-FSE imaging. The signal-to-noise ratios (SNRs), contrast-to-noise ratios (CNRs), and image quality were analysed. To compare the diagnostic efficiency of degenerative spondylopathy, evaluations of spondylolisthesis, retrolisthesis, disc herniation, myelopathy, disc degeneration, and bone marrow oedema were also performed...
October 9, 2018: Clinical Radiology
I Kalina, A Tóth, É Valcseva, P N Kaposi, N Ács, S Várbíró, V Bérczi
AIM: To evaluate the prognostic value of pretreatment pelvic magnetic resonance imaging (MRI) features in uterine artery embolisation (UAE) for symptomatic fibroids. MATERIALS AND METHODS: MRI characteristics of 109 fibroids (≥3 cm) in 70 patients were analysed retrospectively. Imaging was performed 1.8±1.3 (SD) months before and 6.6±1.8 months after UAE. On pretreatment images, signal intensity (SI) of fibroids was compared with that of the myometrium and skeletal muscle on T1- and T2-weighted sequences; the contrast enhancement pattern and localisation of fibroids were also analysed...
October 8, 2018: Clinical Radiology
R Fawcett, A Grainger, P Robinson, M Jafari, E Rowbotham
No abstract text is available yet for this article.
October 6, 2018: Clinical Radiology
T Zhang, M Yuan, Y Zhong, Y-D Zhang, H Li, J-F Wu, T-F Yu
AIM: To evaluate the predictive role of radiomics based on computed tomography (CT) in discriminating focal organising pneumonia (FOP) from peripheral lung adenocarcinoma (LA). MATERIALS AND METHODS: Institutional research board approval was obtained for this retrospective study. One hundred and seventeen patients with FOP and 109 patients with LA who underwent thin-section CT from January 2011 to August 2017 were reviewed systematically and analysed. The clinical and radiological features were established as model A and multi-feature-based radiomics as model B...
October 4, 2018: Clinical Radiology
B A K Kreilkamp, K Das, U C Wieshmann, S Biswas, A G Marson, S S Keller
AIM: To evaluate whether a dedicated epilepsy research protocol with expert image re-evaluation can increase identification of patients with lesions and to attempt to ascertain the potential reasons why lesions were not identified previously on earlier clinical magnetic resonance imaging (MRI). MATERIALS AND METHODS: Forty-three patients (26 female) with focal refractory epilepsy who had failed at least two trials of anti-epileptic drug treatments were studied. Patients were recruited prospectively into the study if previous clinical MRI was deemed to be "non-lesional" by the clinicians involved in the initial assessment...
September 28, 2018: Clinical Radiology
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