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Clinical Radiology

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https://www.readbyqxmd.com/read/28527529/image-guided-ablation-of-renal-cell-carcinoma
#1
REVIEW
T M Wah
This review article aims to provide an overview of image-guided ablation of renal cell carcinoma (RCC) since it was first introduced in 1998. This will cover the background and rationale behind its development; an overview of the evidence for current thermal technology, such as heat-based, e.g., radiofrequency ablation (RFA), microwave ablation (MWA), and cold-based energies, e.g., cryoablation used; and summarise the published evidence regarding its treatment efficacy and oncological outcome. In addition, it aims to provide an insight into the potential role of the new non-thermal ablative technology, e...
May 17, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28527528/awareness-knowledge-and-interest-in-interventional-radiology-among-final-year-medical-students-in-england
#2
P A Atiiga, M Drozd, R Veettil
AIM: To investigate awareness, knowledge, and interests in interventional radiology (IR) among final year students. MATERIALS AND METHODS: Three hundred and fifty-nine anonymous questionnaires were distributed to final year medical students at two medical institutions in England. A total of 220 students (61%) responded. RESULTS: In the present study, 167 students (75.9%) correctly identified that interventional radiologists perform angioplasty and stenting of arteries...
May 17, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28526455/comparison-of-3d-and-2d-shear-wave-elastography-for-differentiating-benign-and-malignant-breast-masses-focus-on-the-diagnostic-performance
#3
H Y Choi, Y-M Sohn, M Seo
AIM: To evaluate the diagnostic performance of three-dimensional (3D) image shear-wave elastography (SWE) for differentiating benign from malignant breast masses compared to two-dimensional (2D) SWE and B-mode ultrasound (US). MATERIALS AND METHODS: This study consisted of 205 breast lesions from 199 patients who underwent B-mode US and SWE before biopsy from January 2014 to March 2016. Quantitative elasticity values (maximum and mean elasticity, Emax and Emean) obtained from 2D and 3D SWE (axial, sagittal, and coronal images) were reviewed retrospectively, in addition to the histopathological findings including immunohistochemistry profiles (luminal A, luminal B, human epidermal growth factor receptor 2 (HER2)-enriched, and triple-negative breast cancer) in cases of malignancy...
May 16, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28522259/assessing-the-effects-of-manual-dexterity-and-playing-computer-games-on-catheter-wire-manipulation-for-inexperienced-operators
#4
Z Alsafi, Y Hameed, P Amin, S Shamsad, U Raja, A Alsafi, M S Hamady
AIM: To investigate the effect of playing computer games and manual dexterity on catheter-wire manipulation in a mechanical aortic model. MATERIAL AND METHODS: Medical student volunteers filled in a preprocedure questionnaire assessing their exposure to computer games. Their manual dexterity was measured using a smartphone game. They were then shown a video clip demonstrating renal artery cannulation and were asked to reproduce this. All attempts were timed. Two-tailed Student's t-test was used to compare continuous data, while Fisher's exact test was used for categorical data...
May 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28522258/high-resolution-3%C3%A2-t-mri-of-traumatic-and-degenerative-triangular-fibrocartilage-complex-tfcc-abnormalities-using-palmer-and-outerbridge-classifications
#5
T Nozaki, G Rafijah, L Yang, T Ueno, S Horiuchi, D Hitt, H Yoshioka
AIM: To investigate the usefulness of high-resolution 3 T magnetic resonance imaging (MRI) for the evaluation of traumatic and degenerative triangular fibrocartilage complex (TFCC) abnormalities among three groups: patients presenting with wrist pain who were (a) younger than age 50 years or (b) age 50 or older (PT<50 and PT≥50, respectively), and (c) asymptomatic controls who were younger than age 50 years (AC). MATERIALS AND METHODS: High-resolution 3 T MRI was evaluated retrospectively in 96 patients, including 47 PT<50, 38 PT≥50, and 11 AC...
May 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28522257/can-ct-measures-of-tumour-heterogeneity-stratify-risk-for-nodal-metastasis-in-patients-with-non-small-cell-lung-cancer
#6
M Craigie, J Squires, K Miles
AIM: To undertake a preliminary assessment of the potential for computed tomography (CT) measurement of tumour heterogeneity to stratify risk of nodal metastasis in patients with non-small cell lung cancer (NSCLC). MATERIALS AND METHODS: Tumour heterogeneity in CT images from combined positron-emission tomography (PET)/CT examinations in 150 consecutive patients with NSCLC was assessed using CT texture analysis (CTTA). The short axis diameter of the largest mediastinal node was also measured...
May 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28506799/diffusion-weighted-imaging-in-quiescent-crohn-s-disease-correlation-with-inflammatory-biomarkers-and-video-capsule-endoscopy
#7
E Klang, U Kopylov, R Eliakim, N Rozendorn, D Yablecovitch, A Lahat, S Ben-Horin, M M Amitai
AIM: To investigate the role of restricted diffusion in quiescent Crohn's disease (CD) patients and its association with inflammatory biomarkers and endoscopic disease. MATERIAL AND METHODS: Fifty-two quiescent CD patients prospectively underwent magnetic resonance enterography (MRE) and video capsule endoscopy (VCE) and were tested for the inflammatory biomarkers, faecal calprotectin (FCP) and C-reactive protein (CRP). Restricted diffusion in the distal ileum was qualitatively (absence/presence) and quantitatively (apparent diffusion coefficient [ADC]) assessed by two readers...
May 13, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28506798/evaluation-of-a-semi-automated-software-program-for-the-identification-of-vertebral-fractures-in-children
#8
F F Alqahtani, F Messina, E Kruger, H Gill, M Ellis, I Lang, P Broadley, A C Offiah
AIM: To assess observer reliability and diagnostic accuracy in children, of a semi-automated six-point technique developed for vertebral fracture (VF) diagnosis in adults, which records percentage loss of vertebral body height. MATERIALS AND METHODS: Using a semi-automated software program, five observers independently assessed T4 to L4 from the lateral spine radiographs of 137 children and adolescents for VF. A previous consensus read by three paediatric radiologists using a simplified algorithm-based qualitative technique (i...
May 12, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28502664/the-utility-of-susceptibility-weighted-imaging-to-evaluate-the-extent-of-iron-accumulation-in-the-choroid-plexus-of-patients-with-%C3%AE-thalassaemia-major
#9
Z I Hasiloglu, M Asik, E Ure, F Ertem, H Apak, S Albayram
AIM: To assess iron accumulation in the choroid plexus of β-thalassaemia patients using fast spin echo (FSE) T2-weighted, gradient echo (GRE) T2*-weighted, susceptibility-weighted imaging (SWI) and compare the results. MATERIALS AND METHODS: Eighteen patients with transfusion-dependent β-thalassaemia and the control group underwent magnetic resonance imaging (MRI) examinations. Signal intensities were separately evaluated using a "number of hypointensity in the choroid plexus" (NHICP) grading system on axial FSE T2-weighted, GRE T2*-weighted, and SWI images...
May 11, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28501096/combined-diffusion-weighted-imaging-and-dynamic-contrast-enhanced-mri-for-differentiating-radiologically-indeterminate-malignant-from-benign-orbital-masses
#10
X-Q Xu, W Qian, G Ma, H Hu, G-Y Su, H Liu, H-B Shi, F-Y Wu
AIM: To evaluate the performance of the combination of diffusion-weighted (DW) and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) for differentiating radiologically indeterminate malignant from benign orbital masses. MATERIALS AND METHODS: Sixty-five patients with orbital masses (36 benign and 29 malignant) underwent DW and DCE MRI examinations for pre-treatment evaluation. The apparent diffusion coefficient (ADC) was derived from DW imaging data using the mono-exponential model...
May 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28501095/imaging-of-igg4-related-disease-of-the-head-and-neck
#11
REVIEW
A Thompson, A Whyte
IgG4-related disease is a systemic, inflammatory disorder typically involving multiple organ systems. Several eponymous conditions described previously in the clinical and radiology literature are now recognised to be part of the IgG4-related disease spectrum. This includes multiple manifestations in the head and neck region, which are the subject of this review. Imaging can occasionally suggest the specific diagnosis of IgG4 disease. More commonly, it will be included in a limited differential diagnosis that requires clarification with the aid of image-guided biopsy...
May 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28495011/solitary-fibrous-tumour-of-pleura-ct-differentiation-of-benign-and-malignant-types
#12
A Gupta, C A Souza, H S Sekhon, M M Gomes, S S Hare, P P Agarwal, J P Kanne, J M Seely
AIM: To analyse and compare the computed tomography (CT) features of benign and malignant types of histopathologically proven cases of solitary fibrous tumours of pleura (SFTP). MATERIALS AND METHODS: Retrospective analysis of preoperative CT images of 28 cases of histopathologically proven and classified SFTP from three participating institutions was performed. Patient demographics and lesion characteristics including size, borders, presence of a pedicle, extension into the fissure, attenuation, enhancement, pleural effusion, and calcifications were recorded and correlated with the final histopathological diagnosis...
May 8, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28494943/kinematic-analysis-of-the-scaphoid-using-gated-four-dimensional-ct
#13
I S Mat Jais, S C Tay
AIM: To investigate the kinematics of the scaphoid while the wrist was in radioulnar motion using gated four-dimensional computed tomography (4DCT) imaging. MATERIALS AND METHODS: Six cadaveric wrist specimens were scanned in the following order of capsulotomy and ligament sectioning: (1) ligaments intact, (2) capsulotomy, (3) scapholunate ligament division, and lastly, (4) lunotriquetral ligament division. A three-dimensional model was then reconstructed to analyse the translation and angular displacements of the scaphoid...
May 7, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28478929/low-voltage-chest-ct-another-way-to-reduce-the-radiation-dose-in-asbestos-exposed-patients
#14
D Macía-Suárez, E Sánchez-Rodríguez, B Lopez-Calviño, C Diego, M Pombar
AIM: To assess whether low voltage chest computed tomography (CT) can be used to successfully diagnose disease in patients with asbestos exposure. MATERIALS AND METHODS: Fifty-six former employees of the shipbuilding industry, who were candidates to receive a standard-dose chest CT due to their occupational exposure to asbestos, underwent a routine CT. Immediately after this initial CT, they underwent a second acquisition using low-dose chest CT parameters, based on a low potential (80 kV) and limited tube current...
May 4, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28478928/special-issue-on-interventional-oncology
#15
EDITORIAL
R Uberoi, D J Breen
No abstract text is available yet for this article.
May 4, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28477959/increased-image-quality-and-reduced-radiation-dose-and-contrast-media-volume-a-holistic-approach-to-intracranial-cta
#16
C Saade, G Al-Fout, A Mayat, P C Brennan, F Hui, G Maroun, R N Kikano, L Naffaa
AIM: To investigate the dose-length product (DLP) during intracranial computed tomography angiography (CTA) using a patient-specific contrast formula. MATERIALS AND METHODS: Intracranial CTA was performed on 120 patients using 64-channel CT. Patients were subjected in equal numbers to one of two acquisitions/contrast medium protocols. Protocol A, consisted of 80 ml contrast medium and protocol B, involved a novel contrast medium formula. In each protocol, contrast medium and saline were injected at a flow rate of 4...
May 3, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28476245/twist-vibe-five-arterial-phase-technology-decreases-transient-severe-motion-after-bolus-injection-of-gd-eob-dtpa
#17
H Li, Y Xiao, S Wang, Y Li, X Zhong, W Situ, E Xiao, Z Zhang
AIM: To investigate whether time-resolved imaging with interleaved stochastic trajectories (TWIST)-volumetric interpolated breath-hold examination (VIBE) hepatic arterial phase imaging technique improves image quality in patients experiencing transient severe motion (TSM) during abdominal magnetic resonance imaging (MRI) with gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA). MATERIALS AND METHODS: This retrospective study compares TSM in MRI images from 28 patients with focal liver lesions imaged with gadopentetic acid (Gd-DTPA) and 28 patients with focal liver lesions imaged with Gd-EOB-DTPA...
May 2, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28476244/imaging-of-hepatic-toxicity-of-systemic-therapy-in-a-tertiary-cancer-centre-chemotherapy-haematopoietic-stem-cell-transplantation-molecular-targeted-therapies-and-immune-checkpoint-inhibitors
#18
REVIEW
F Alessandrino, S H Tirumani, K M Krajewski, A B Shinagare, J P Jagannathan, N H Ramaiya, D N Di Salvo
The purpose of this review is to familiarise radiologists with the spectrum of hepatic toxicity seen in the oncology setting, in view of the different systemic therapies used in cancer patients. Drug-induced liver injury can manifest in various forms, and anti-neoplastic agents are associated with different types of hepatotoxicity. Although chemotherapy-induced liver injury can present as hepatitis, steatosis, sinusoidal obstruction syndrome, and chronic parenchymal damages, molecular targeted therapy-associated liver toxicity ranges from mild liver function test elevation to fulminant life-threatening acute liver failure...
May 2, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28476243/advanced-dual-energy-ct-applications-for-the-evaluation-of-the-soft-tissues-of-the-neck
#19
REVIEW
R Forghani, S K Mukherji
There are multiple emerging advanced computed tomography (CT) applications for the evaluation of the neck, many based on dual-energy CT (DECT). DECT is an advanced form of CT in which scan acquisition is performed at two different energies, enabling spectral tissue characterisation beyond what is possible with conventional single-energy CT and potentially providing a new horizon for quantitative analysis and tissue characterisation, particularly in oncological imaging. The purpose of this review is to familiarise the reader with DECT principles and review different clinical applications for the evaluation of the soft tissues of the neck...
May 2, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28464984/contrast-enhanced-ultrasound-in-the-diagnosis-of-orbital-space-occupying-lesions
#20
L Yan, G He, X Zhou, Y Zheng, Y Zhu, J Yang, M Zhang, Y Zhou
AIM: To summarise the sonographic findings and assess the feasibility of contrast-enhanced ultrasound (CEUS) as an imaging method for the diagnosis of orbital space-occupying lesions. MATERIALS AND METHODS: This was a prospective study of 53 patients who underwent orbital ultrasound at Xijing Hospital. Two-dimensional ultrasound, colour Doppler flow imaging (CDFI), and CEUS imaging were obtained and compared in patients with orbital haemangioma, pseudotumour, melanoma of the choroid, and retinoblastoma...
April 29, 2017: Clinical Radiology
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