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Clinical Radiology

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https://www.readbyqxmd.com/read/28629605/ct-findings-in-11-patients-with-tafro-syndrome-a-variant-of-multicentric-castleman-s-disease
#1
T Kiguchi, C Sato, K Takai, Y Nakai, Y Kaneko, M Matsuki
AIM: To assess detailed computed tomography (CT) findings in patients with the recently described thrombocytopenia, anasarca, fever, reticulin fibrosis, and organomegaly (TAFRO) syndrome, in order to contribute to imaging interpretation in the challenging diagnosis of this disease. MATERIALS AND METHODS: The institutional review board approved this retrospective study and waived the need for informed consent. Eleven patients (six men, five women; mean age, 52.5 years) with confirmed TAFRO syndrome were included in this study...
June 16, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28622797/making-the-best-value-of-clinical-radiology-irefer-guidelines-8th-edition
#2
D Remedios, B France, M Alexander
New uses of medical imaging as well as over-diagnosis and wasteful imaging have led to a 10% per annum growth in computed tomography (CT) and magnetic resonance imaging (MRI). Personalised value to the patient will be helped by referral guidelines for the best test first, adding evidence-based technical value to the investigation to answer the clinical question, thus providing allocative value to the commissioners of medical imaging. Appropriate imaging is driven by the need for effective decisions, radiation safety, and cost awareness...
June 13, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28622796/cardiac-magnetic-resonance-indices-reflecting-pulmonary-regurgitation-burden-after-tetralogy-of-fallot-repair
#3
A A Sakrana, S A Al-Zubaidi, M M Nasr, E M Helmy, S S Al Ghamdi, M E Tahlawi
AIM: To investigate cardiac magnetic resonance (CMR)-derived parameters to determine a convenient index reflecting the degree of pulmonary regurgitation (PR) after Tetralogy of Fallot (TOF) repair. MATERIALS AND METHODS: Sixty-three patients (age at CMR study, 23.6 [10.2-34.7] years, 55.6% male) underwent CMR after TOF repair. PR was quantified using ventricular stroke volume difference and phase-contrast mapping of the main pulmonary artery flow. In both approaches, the PRV index (PRVI) and the PR fraction (PRF) were calculated and correlated to the right ventricle end-diastolic volume index (RVEDVI) and the right ventricle end-systolic volume index (RVESVI)...
June 13, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28619443/ct-guided-hook-wire-localisation-prior-to-video-assisted-thoracoscopic-surgery-of-pulmonary-lesions
#4
T Gruber-Rouh, N N N Naguib, M Beeres, P Kleine, T J Vogl, V Jacobi, M Alsubhi, N A Nour-Eldin
AIM: To assess the feasibility, safety, and efficacy of computed tomography (CT)-guided pulmonary nodule localisation using a hooked guide wire before video-assisted thoracoscopic surgery (VATS). MATERIALS AND METHODS: The study included 79 patients with a history of malignancies outside the lung associated with pulmonary nodules. Mean lesion size was 0.7 cm (range 0.5-1.8 cm) and the mean lesion distance to the pleural surface was 1.5 cm (range 0.2-5 cm). All lesions (n=82) were marked with a 22-G hook wire...
June 12, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28615141/diagnostic-capability-of-feature-tracking-cardiovascular-magnetic-resonance-to-detect-infarcted-segments-a-comparison-with-tagged-magnetic-resonance-and-wall-thickening-analysis
#5
R Ogawa, T Kido, M Nakamura, T Kido, A Kurata, M Miyagawa, T Mochizuki
AIM: To examine the diagnostic capabilities of feature-tracking cardiovascular magnetic resonance (FT-CMR), tagged cine magnetic resonance (MR), and wall thickening (WT) analyses to detect infarcted segments in patients with established myocardial infarction (MI). MATERIALS AND METHODS: Twenty patients with established MI were selected retrospectively and the peak endocardial circumferential strain (CS) was quantified based on the 16-segment model. According to CMR with late gadolinium enhancement, segments were categorised as transmural MI, subendocardial MI, and no MI...
June 11, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28615140/imaging-features-of-myeloproliferative-neoplasms
#6
REVIEW
I G Murphy, E L Mitchell, L Raso-Barnett, A L Godfrey, E M Godfrey
Myeloproliferative neoplasms (MPNs) are a heterogeneous group of haematological disorders including polycythaemia vera (PV), essential thrombocythaemia (ET), primary myelofibrosis (PMF), and chronic myeloid leukaemia (CML). These disorders show large overlap in genetic and clinical presentations, and can have many different imaging manifestations. Unusual thromboses, embolic events throughout the systemic or pulmonary vasculature, or osseous findings can often be clues to the underlying disease. There is limited literature about the imaging features of these disorders, and this may result in under-diagnosis...
June 11, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28610889/high-resolution-ct-findings-of-pulmonary-tuberculosis-in-liver-transplant-patients
#7
R Schuhmacher Neto, I L Giacomelli, C Schuller Nin, J da Silva Moreira, A Comaru Pasqualotto, E Marchiori, K Loureiro Irion, B Hochhegger
AIM: To assess the high-resolution computed tomography (HRCT) findings in liver transplant patients diagnosed with pulmonary Mycobacterium tuberculosis infection. MATERIALS AND METHODS: The HRCT findings from 19 patients diagnosed with pulmonary tuberculosis infection after liver transplantation were reviewed. The patients included were 12 men and seven women, age range 23-65 years; mean age 57 years. The diagnosis was established with Mycobacterium tuberculosis detection in bronchoalveolar lavage, sputum, or biopsy...
June 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28600002/diagnostic-yield-of-fdg-pet-ct-in-fever-of%C3%A2-unknown-origin-a-systematic-review-meta-analysis-and-delphi-exercise
#8
T Bharucha, A Rutherford, S Skeoch, A Alavi, M Brown, J Galloway
AIM: To perform a systematic review, meta-analysis and Delphi exercise to evaluate diagnostic yield of combined 2-[(18)F]-fluoro-2-deoxy-d-glucose (FDG) positron-emission tomography and computed tomography (FDG-PET/CT) in fever of unknown origin (FUO). MATERIALS AND METHODS: Four databases were searched for studies of FDG-PET/CT in FUO 1/1/2000-1/12/2015. Exclusions were non-English language, case reports, non-standard FDG radiotracer, and significant missing data...
June 7, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28592361/ct-imaging-of-solid-renal-masses-pitfalls-and-solutions
#9
REVIEW
S Krishna, C A Murray, M D McInnes, R Chatelain, M Siddaiah, O Al-Dandan, S Narayanasamy, N Schieda
Computed tomography (CT) remains the first-line imaging test for the characterisation of renal masses; however, CT has inherent limitations, which if unrecognised, may result in errors. The purpose of this manuscript is to present 10 pitfalls in the CT evaluation of solid renal masses. Thin section non-contrast enhanced CT (NECT) is required to confirm the presence of macroscopic fat and diagnosis of angiomyolipoma (AML). Renal cell carcinoma (RCC) can mimic renal cysts at NECT when measuring <20 HU, but are usually heterogeneous with irregular margins...
June 4, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28587715/diffusion-weighted-whole-body-mri-for-evaluation-of-early-response-in-multiple-myeloma
#10
C Lacognata, F Crimì, A Guolo, C Varin, E De March, S Vio, A Ponzoni, G Barilà, A Lico, A Branca, E De Biasi, F Gherlinzoni, V Scapin, E Bissoli, T Berno, R Zambello
AIM: To evaluate the modifications of the apparent diffusion coefficient (ADC) in myelomatous lesions before and after induction treatment and the correlation with patient response to therapy according to International Myeloma Working Group (IMWG) criteria. MATERIALS AND METHODS: A homogeneous group of 18 patients with a diagnosis of symptomatic multiple myeloma who underwent whole-body MRI with diffusion-weighted imaging (DWI-MRI) before and after bortezomib-based induction chemotherapy were evaluated prospectively...
June 3, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28576437/feasibility-of-high-pitch-spiral-dual-source-ct-angiography-in-children-with-complex-congenital-heart-disease-compared-to-retrospective-gated-spiral-acquisition
#11
T Li, S Zhao, J Liu, L Yang, Z Huang, J Li, C Luo, X Li
AIM: To investigate the use of second-generation dual-source high-pitch computed tomography in obtaining confident diagnostic image quality using a low radiation dose in young patients with congenital heart disease (CHD). MATERIALS AND METHODS: From July 2014 to June 2016, 50 consecutive children <4 years with complex CHD underwent electrocardiography (ECG)-triggered dual-source computed tomography (CT). The patients were assigned randomly to two groups: high-pitch (pitch 3...
May 30, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28576436/cta-in-acute-stroke-short-intensive-training-intervention-is-highly-effective-in-improving-radiologists-performance
#12
E A Cora, G A Ford, D Flynn, P Gonsalves, P White
AIM: To determine whether focussed radiology training in reporting stroke computed tomography angiography (CTA) improved diagnostic performance of general radiology specialty trainees staffing regional on call rotas. MATERIALS AND METHODS: A validated case archive (VCA) consisting of 50 hyperacute stroke CTA cases was developed for a full day course on CTA interpretation. Training days were organised ensuring all local trainees had a chance to attend. The rate of major and minor amendments by neuroradiology consultants were reviewed in 252 on-call radiology trainee reports...
May 30, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28554579/wall-suction-assisted-image-guided-thoracentesis-a-safe-alternative-to-evacuated-bottles
#13
H Kim, P B Shyn, L Wu, V M Levesque, R Khorasani, S G Silverman
AIM: To compare the safety of evacuated bottle-assisted thoracentesis with wall suction-assisted thoracentesis. MATERIALS AND METHODS: An institutional review board-approved, Health Insurance Portability and Accountability Act-compliant retrospective study of 161 consecutive patients who underwent 191 evacuated bottle-assisted thoracenteses from 1 January 2012 to 30 September 2012, and 188 consecutive patients who underwent 230 wall suction-assisted thoracenteses from 1 January 2013 to 30 September 2013 was conducted...
May 26, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28554578/meningioma-mimics-five-key-imaging-features-to-differentiate-them-from-meningiomas
#14
REVIEW
C J Starr, S Cha
There are a wide variety of intracranial mass lesions, both benign and malignant, which can closely mimic meningioma on imaging. We present five characteristic imaging features that can alert the radiologist to consider other differential diagnoses. Of the five imaging characteristics that were rarely seen in meningiomas, but common and specific for meningioma mimics, absence of dural tail is the most common (83.7%). Homogeneous T2 hyperintensity or T2 hypointensity are seen in nearly half of meningioma mimics and osseous destruction and leptomeningeal extension are present in 40...
May 26, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28552325/hypertrophic-cardiomyopathy-and-left-ventricular-hypertrophy-in-hypertensive-heart-disease-with-mildly-reduced-or-preserved-ejection-fraction-insight-from-altered-mechanics-and-native-t1-mapping
#15
L-M Wu, D-A L An, Q-Y Yao, Y-R Z Ou, Q Lu, M Jiang, J-R Xu
AIM: To explore the relationship between extracellular volume (ECV), native T1, and systolic strain in hypertrophic cardiomyopathy (HCM) and hypertensive patients with left ventricular hypertrophy (HTN LVH) with mildly reduced or preserved ejection fraction. MATERIALS AND METHODS: T1 mapping was performed in 45 patients with late gadolinium enhancement positive (LGE+) HCM (mean age, 53±6 years), 11 patients with LGE- (LGE-) HCM (mean age, 56±5 years), and 20 patients with HTN LVH (mean age, 55±6 years) on at 3 T magnetic resonance imaging (MRI) using the modified look-locker inversion-recovery (MOLLI) pulse sequence...
May 25, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28545685/diagnostic-value-of-combined-diffusion-weighted-imaging-with-dynamic-contrast-enhancement-mri-in-differentiating-malignant-from-benign-bone-lesions
#16
J Cao, L Xiao, B He, G Zhang, J Dong, Y Wu, H Xie, G Wang, X Lin
AIM: To determine the diagnostic value of combined diffusion-weighted imaging (DWI) with dynamic contrast enhancement magnetic resonance imaging (DCE-MRI) in differentiating malignant from benign bone lesions. MATERIALS AND METHODS: DWI and DCE-MRI were performed in 36 patients (14 were benign and 22 were malignant). The mean apparent diffusion coefficient (ADC) values and signal enhanced extent (SEE), slope value, and time-signal intensity curve (TIC) type were recorded by two observers...
May 23, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28545686/radiological-diagnosis-of-drop-metastases-from%C3%A2-paediatric-brain-tumours-using-combination%C3%A2-of-2d-and-3d-mri-sequences
#17
S F Kralik, D P O'Neill, A P Kamer, E Rodriguez, C Y Ho
AIM: To evaluate spinal magnetic resonance imaging (MRI) examinations using a combination of two-dimensional (2D) and three-dimensional (3D) MRI sequences for diagnosis of drop metastases. MATERIALS AND METHODS: Fifty-five paediatric patients with primary brain tumours were evaluated for drop metastases at initial presentation using spinal MRI including sagittal 2D T1-weighted (W) contrast-enhanced (+C), axial 3D T1W+C volumetric interpolated breath-hold (VIBE), and sagittal 3D T2W SPACE (Sampling Perfection with Application optimised Contrasts using different flip angle Evolutions)...
May 22, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28545684/mri-of-cystic-fibrosis-lung-manifestations-sequence-evaluation-and-clinical-outcome-analysis
#18
O Scholz, T Denecke, J Böttcher, C Schwarz, H-J Mentzel, F Streitparth, M H Maurer, A Pfeil, A Huppertz, A Mehl, D Staab, B Hamm, D M Renz
AIM: To evaluate different magnetic resonance imaging (MRI) sequences for diagnosis of pulmonary manifestations of cystic fibrosis (CF) in comparison to chest computed tomography (CT), including an extended outcome analysis. MATERIALS AND METHODS: Twenty-eight patients with CF (15 male, 13 female, mean age 30.5±9.4 years) underwent CT and MRI of the lung. MRI (1.5 T) included different T2- and T1-weighted sequences: breath-hold HASTE (half Fourier acquisition single shot turbo spin echo) and VIBE (volumetric interpolated breath-hold examination, before and after contrast medium administration) sequences and respiratory-triggered PROPELLER (periodically rotated overlapping parallel lines with enhanced reconstruction) sequences with and without fat signal suppression, and perfusion imaging...
May 22, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28545683/commentary-on-survey-of-uk-imaging-practice-for-the-investigation-of-pulmonary-embolism-in-pregnancy
#19
C S Johns, M L Schiebler, A J Swift
No abstract text is available yet for this article.
May 22, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28545682/percutaneous-microwave-ablation-of-renal-cancers-under-ct-guidance-safety-and-efficacy-with-a-2-year-follow-up
#20
P Chan, S Vélasco, G Vesselle, S Boucebci, G Herpe, B Debaene, P Ingrand, J Irani, J-P Tasu
AIM: To evaluate the safety and efficiency of percutaneous microwave ablation (MWA) of renal cell carcinomas (RCC) carried out under computed tomography (CT) guidance. MATERIALS AND METHODS: A retrospective study was performed on RCC that was either histologically proven or diagnosed at imaging (Bosniak IV cyst) and treated by MWA under general anaesthesia with CT guidance. Indications for percutaneous ablation were based on the American Urological Association recommendations...
May 22, 2017: Clinical Radiology
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