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British Journal of Radiology

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https://www.readbyqxmd.com/read/29125329/digital-breast-tomosynthesis-findings-may-be-different-in-her2-positive-breast-cancer-patients-according-to-hormone-receptor-status
#1
Kadri Altundag
No abstract text is available yet for this article.
November 21, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29120661/rectal-cancer-confined-to-the-bowel-wall-the-role-of-3-tesla-phased-array-mr-imaging-in-t-categorization
#2
Hale Çolakoğlu Er, Elif Peker, Ayşe Erden, İlhan Erden, Ethem Geçim, Berna Savaş
OBJECTIVE: To determine the diagnostic value of 3 Tesla MR imaging in detection of mucosal (Tis), submucosal (T1) and muscularis propria (T2) invasion in patients with early rectal cancer. METHODS: A total of 50 consecutive patients who underwent 3 Tesla MR imaging and curative-intent intervention for MRI-staged Tis/T1/T2 rectal cancer from March 2012 to December 2016 were included. The radiological T category of each rectal tumour was compared retrospectively with histopathological results assessed according to the tumor, node, metastasis (TNM) classification...
November 21, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29099616/investigating-the-minimum-scan-parameters-required-to-generate-free-breathing-motion-artefact-free-fast-helical-ct
#3
David H Thomas, Jun Tan, Jack Neylon, Tai Dou, Dylan O'Connell, Michael McNitt-Gray, Percy Lee, James Lamb, Daniel A Low
OBJECTIVE: A recently proposed "5DCT" protocol uses deformable registration of free-breathing fast-helical CT scans to generate a breathing motion model. In order to allow accurate registration, free-breathing images are required to be free of doubling-artefacts, which arise when tissue motion is greater than scan speed. METHODS: Using a unique set of digital phantoms based on patient data and verified with a motion phantom, this work identifies the minimum scanner parameters required to successfully generate free-breathing artefact-free fast-helical scans...
November 21, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29099613/diagnostic-accuracy-of-18-f-fdg-pet-ct-for-detection-of-peritoneal-carcinomatosis-a-systematic-review-and-meta-analysis
#4
Seong-Jang Kim, Sang-Woo Lee
OBJECTIVE: The current review aimed to investigate the performance of the diagnostic accuracy of (18)F- fludeoxyglucose positron emission tomography/CT (PET/CT) in detecting peritoneal carcinomatosis (PC) through a systematic review and meta-analysis. METHODS: The MEDLINE via PubMed and EMBASE from the earliest available date of indexing to 31 March 2017, were searched for studies evaluating the diagnostic performance of (18)F-FDG PET/CT in detecting PC. We evaluated the pooled sensitivities and specificities across included studies, calculated positive and negative likelihood ratios (LR+ and LR-), and plotted summary receiver operating characteristic curves...
November 21, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29091474/pilot-study-safety-and-effectiveness-of-simple-ultrasound-guided-high-intensity-focused-ultrasound-ablating-uterine-leiomyoma-with-a-diameter-greater-than-10%C3%A2-cm
#5
Ruijie Hou, Liwei Wang, Shaoping Li, Fengmin Rong, Yuanyuan Wang, Xuena Qin, Shijin Wang
OBJECTIVE: The study aimed to prospectively investigate whether uterine leiomyoma greater than 10 cm in diameter could be treated with simple ultrasound-guided high-intensity focused ultrasound (USgHIFU) in one-time treatment. METHODS: A total of 36 patients with 36 symptomatic uterine leiomyoma greater than 10 cm in diameter who underwent simple USgHIFU treatment alone were analysed. Enhanced MRI was performed before and after HIFU treatment, and all patients had follow-up for 6 months after treatment...
November 21, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29076745/cost-effectiveness-of-magnetic-resonance-carotid-plaque-imaging-for-primary-stroke-prevention-in-canada
#6
Lechtman E, Balki I, Thomas K, Chen K, Moody Ar, Tyrrell Pn
OBJECTIVE: Magnetic resonance of the carotid arteries provides important insight into plaque composition and vulnerability in addition to the traditional measure of stenosis. The purpose of this study was to evaluate the cost-effectiveness of MR imaging as a first-line modality to assess carotid disease and guide management for high-risk patients with <50% stenosis. METHODS: Using TreeAge Pro, a cost-effectiveness simulation was conducted comparing two strategies: (a) standard of care first-line carotid duplex ultrasound (DUS) with regular follow-up, vs (b) first-line MR assessment of stenosis and intraplaque haemorrhage (MRIPH) in which patients with IPH received annual DUS surveillance and immediate carotid endarterectomy in case of plaque progression...
November 21, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29144166/imaging-assessment-of-acute-ischaemic-stroke-a-review-of-radiological-methods
#7
Aubrey Smith, Chris Rowland Hill
Acute ischaemic stroke is the second largest cause of death worldwide and a cause of major physical and psychological morbidity. Current evidence based treatment includes intravenous thrombolysis (IVT) and mechanical thrombectomy (MT), both requiring careful patient selection and to be administered as quickly as possible within a limited time window from symptom onset. Imaging plays a crucial role identifying patients who may benefit from MT or IVT whilst excluding those that maybe harmed. For IVT, imaging must as a minimum exclude haemorrhage, stroke mimics and provide an estimate of non-viable brain...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29144164/correlation-between-obesity-and-fat-infiltrated-axillary-lymph-nodes-visualized-on-mammography
#8
Roberta Maria M diFlorio Alexander, Steffen J Haider, Todd MacKenzie, Martha E Goodrich, Julie Weiss, Tracy Onega
OBJECTIVE: Using screening mammography, this study investigated the association between obesity and axillary lymph node (LN) size and morphology. METHODS: We conducted a retrospective review of 188 women who underwent screening mammography at an academic medical center. Length and width of the LN and hilum were measured in the largest, mammographically visible axillary node. The hilo-cortical ratio (HCR) was calculated as the hilar width divided by the cortical width...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29144163/demand-for-ct-scans-increases-during-transition-from-paediatric-to-adult-care-an-observational-study-from-2009-to-2015
#9
Pete Thurley, Jonathan Crookdake, Mark Norwood, Nigel Sturrock, Andrew W Fogarty
OBJECTIVE: Avoiding unnecessary radiation exposure is a clinical priority in children and young adults. We aimed to explore demand for CT scans in a busy general hospital with particular interest in the period of transition from paediatric to adult medical care. METHODS: We used an observational epidemiological study based in a teaching hospital. Data were obtained on numbers and rates of CT scans from 2009 to 2015. The main outcome was age-stratified rates of receiving a CT scan...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29144161/use-of-patient-outcome-endpoints-to-identify-the-best-functional-ct-imaging-parameters-in-metastatic-renal-cell-carcinoma-patients
#10
Jill Rachel Mains, Frede Donskov, Erik Morre Petersen, Hans Henrik Torp Madsen, Jesper Thygesen, Kennet Thorup, Finn Rasmussen
OBJECTIVE: To use the patient outcome endpoints overall survival and progression-free survival to evaluate functional parameters derived from dynamic contrast-enhanced computed tomography (DCE-CT). METHODS: 69 patients with metastatic renal cell carcinoma (mRCC) had DCE-CT scans at baseline and after 5 and 10 weeks of treatment. Blood volume, blood flow and standardized perfusion values were calculated using deconvolution (BVdeconv, BFdeconv and SPVdeconv), blood flow and standardized perfusion values using maximum slope (BFmax and SPVmax), and blood volume and permeability surface area product using the Patlak model (BVpatlak and PS)...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29144159/shear-wave-elastography-quantitative-assessment-of-the-male-breast-added-value-to-distinguish-benign-and-malignant-palpable-masses
#11
Amandine Crombe, Gabrielle Hurtevent-Labrot, Maryam Asad-Syed, Jean Palussiere, Gaetan MacGrogan, Michèle Kind, Stéphane Ferron
OBJECTIVE: To evaluate the ability of shear-wave elastography (SWE) to distinguish between benign and malignant palpable masses of the adult male breast. METHODS: Clinical examination, mammography, B-mode and Doppler ultrasound (US) findings and SWE quantitative parameters were compared in 50 benign lesions (including 40 gynecomastias) and 15 malignant lesions (invasive ductal carcinomas) from 65 patients who were consecutively addressed for specialized advice at our comprehensive cancer center...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29144153/intravoxel-incoherent-motion-diffusion-weighted-mr-imaging-for-differentiation-of-benign-and-malignant-musculoskeletal-tumors-at-3-t
#12
Hyun Kyong Lim, Won-Hee Jee, Joon-Yong Jung, Mun Young Paek, InSeong Kim, Chan-Kwon Jung, Yang-Guk Chung
OBJECTIVE: To evaluate the intravoxel incoherent motion (IVIM) diffusion-weighted (DW) magnetic resonance imaging (MRI) for differentiating between benign and malignant musculoskeletal tumors at 3 T. METHODS: Sixty-five patients with treatment-naïve musculoskeletal tumors (47 malignant and 23 benign lesions) who underwent 3 T MRI including IVIM DW imaging were included. IVIM-derived parameters included pure diffusion coefficient (D), perfusion related incoherent microcirculation (D*, pseudodiffusion coefficient), and perfusion fraction (f)...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29099611/spect-ct-arthrography
#13
Ujwal Bhure, Justus E Roos, Maria Del Sol Pérez Lago, Isabelle Steurer, Hannes Grünig, Urs Hug, Klaus Strobel
Single photon emission CT (SPECT)/CT arthrography, the combination of CT arthrography and late phase bone SPECT/CT, has been developed in 2011 and so far used in knee, ankle and wrist joints. SPECT/CT offers functional information about increased bone turnover in combination with morphological details. Compared with SPECT/CT alone, additional intra-articular contrast enables the assessment of cartilage, menisci, ligaments and loose bodies. SPECT/CT arthrography is a promising alternative technique for the evaluation of internal derangement of joints in patients with MR contraindications and/or metallic implants...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29076748/radioactive-seed-localization-compared-with-wire-guided-localization-of-non-palpable-breast-carcinoma-in-breast-conservation-surgery-the-first-experience-in-the-united-kingdom
#14
Robert Milligan, Andrew Pieri, Adam Critchley, Richard Peace, Tom Lennard, J M O'Donoghue, Rachel Howitt, Stewart Nicholson, Henry Cain, George Petrides, Nidhi Sibal
OBJECTIVE: In the UK, guidewires have traditionally been used for localization of non-palpable breast lesions in patients undergoing breast conservation surgery (BCS). Radioactive seed localization (RSL) using Iodine-125 seeds is an alternative localization method and involves inserting a titanium capsule, containing radioactive Iodine-125, into the breast lesion. We aim to demonstrate feasibility of RSL compared with guidewire-localization (GWL) for BCS in the UK. METHODS: Data were collected on 100 patients with non-palpable unifocal invasive carcinoma of the breast undergoing GWL WLE prior to the introduction of RSL and the first 100 patients treated with RSL WLE...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29076347/assessment-of-noise-reduction-potential-and-image-quality-improvement-of-a-new-generation-adaptive-statistical-iterative-reconstruction-asir-v-in-chest-ct
#15
Hui Tang, Nan Yu, Yongjun Jia, Yong Yu, Haifeng Duan, Dong Han, Guangming Ma, Chenglong Ren, Taiping He
OBJECTIVE: To evaluate the image quality improvement and noise reduction in routine dose, non-enhanced chest CT imaging by using a new generation adaptive statistical iterative reconstruction (ASIR-V) in comparison with ASIR algorithm. METHODS: 30 patients who underwent routine dose, non-enhanced chest CT using GE Discovery CT750HU (GE Healthcare, Waukesha, WI) were included. The scan parameters included tube voltage of 120 kVp, automatic tube current modulation to obtain a noise index of 14HU, rotation speed of 0...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28934866/initial-experience-with-synthetic-mri-of-the-knee-at-3t-comparison-with-conventional-t-1%C3%A2-weighted-imaging-and-t-2-mapping
#16
Sunghoon Park, Kyu-Sung Kwack, Young Ju Lee, Sung-Min Gho, Hyun Young Lee
OBJECTIVE: To assess the feasibility and accuracy of synthetic MRI compared to conventional T 1 weighted and multi-echo spin-echo (MESE) sequences for obtaining T 2 values in the knee joint at 3 Tesla. METHODS: This retrospective study included 19 patients with normal findings in the knee joint who underwent both synthetic MRI and MESE pulse sequences for T 2 quantification. T 2 values of the two sequences at the articular cartilage, bone marrow and muscle were measured...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29125337/the-value-of-superb-microvascular-imaging-in-differentiating-benign-renal-mass-from-malignant-renal-tumor-a-retrospective-study
#17
Yiran Mao, Jie Mu, Jing Zhao, Lihui Zhao, Xiaojie Xin
OBJECTIVE: This study is to evaluate the value of SMI in assessing renal tumor vascularity and in differentiating benign from malignant renal tumors. METHODS: Patients with pathologically-confirmed renal mass who underwent CDFI and SMI examination between October 2016 and March 2017 were retrospectively analyzed. Patients were classified into benign renal mass group and malignant tumor group according to their pathological results. The vascularity, vascular distribution and vessel morphology obtained from the two scanning methods were analyzed and compared between the two groups...
November 10, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29125336/a-useful-method-for-assessing-differences-of-compensatory-hypertrophy-in-the-contralateral-kidney-before-and-after-radical-nephrectomy-in-patients-with-renal-cell-carcinoma-ellipsoid-formula-on-computed-tomography
#18
Bong Hee Park, Kang Jun Cho, Jung Im Kim, Sang Rak Bae, Yong Seok Lee, Sung Hak Kang, Joon Chul Kim, Chang Hee Han
OBJECTIVE: To investigate the usefulness of the ellipsoid formula for assessing compensatory hypertrophy of the contralateral kidney on preoperative and postoperative CT in renal cell carcinoma(RCC) patients. METHODS: We retrospectively identified 389 patients who had radical nephrectomy for RCC between 2011 and 2015. Contrast-enhanced CT was performed within three months preoperative and at 1 year postoperative. The kidney volumes were calculated from CT using the ellipsoid formula...
November 10, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29125335/a-review-of-mammographic-positioning-image-quality-criteria-for-the-craniocaudal-projection
#19
Rhonda-Joy I Sweeney, Sarah J Lewis, Peter Hogg, Mark F McEntee
Detection of breast cancer is reliant on optimal breast positioning and the production of quality images. Two projections, the mediolateral (MLO) and craniocaudal (CC), are routinely performed. Determination of successful positioning and inclusion of all breast tissue is achieved through meeting stated image quality criteria. For the CC view, current image quality criteria are inconsistent. Absence of reliable anatomical markers, other than the nipple, further contribute to difficulties in assessing the quality of CC views...
November 10, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29125334/submillisievert-chest-dual-energy-computed-tomography-a-pilot-study
#20
Rodrigo Canellas, Jeanne B Ackman, Subba R Digumarthy, Melissa Price, Alexi Otrakji, Shaunagh McDermott, Amita Sharma, Mannudeep K Kalra
OBJECTIVE: To assess if diagnostic dual energy CT of the chest can be achieved at submillisievert doses (sub-mSv). METHODS: Our IRB-approved prospective study included 20 patients who were scanned on dual-source MDCT. All patients gave written informed consent for acquisition of additional image series at reduced radiation dose on a dual-source MDCT (80/140kV) within 10 seconds after the standard of care acquisition. Dose reduction was achieved by reducing the quality reference mAs, with combined angular exposure control...
November 10, 2017: British Journal of Radiology
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