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Radiology

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https://www.readbyqxmd.com/read/29688161/brain-injured-survivors-of-monochorionic-twin-pregnancies-complicated-by-single-intrauterine-death-mr-findings-in-a-multicenter-study
#1
Giorgio Conte, Andrea Righini, Paul D Griffiths, Mariangela Rustico, Mariano Lanna, Fiona L Mackie, Lorenzo Pinelli, Federico Prefumo, Nicola Persico, Mark S Igra, Cecilia Parazzini, Chiara Doneda, Anna Fichera, Claudia Ambrosi, Mark Kilby, Mariasavina Severino, Fabio Triulzi, Andrea Rossi, Nicholas Skipper
Purpose To describe and classify the range of brain injuries present at prenatal, in-utero magnetic resonance (MR) imaging in co-twin survivors of monochorionic (MC) twin pregnancies complicated by single intrauterine death (SIUD). Materials and Methods This retrospective, observational study from six tertiary fetal medicine centers that perform tertiary-level prenatal in-utero MR studies reviewed cases in which prenatal in-utero MR imaging had shown a brain injury in a surviving co-twin of a twin pregnancy with a MC component complicated by SIUD...
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29688160/developmental-hip-dysplasia-diagnosis-at-three-dimensional-us-a-multicenter-study
#2
Dornoosh Zonoobi, Abhilash Hareendranathan, Emanuel Mostofi, Myles Mabee, Saba Pasha, Dana Cobzas, Padma Rao, Sukhdeep K Dulai, Jeevesh Kapur, Jacob L Jaremko
Purpose To validate accuracy of diagnosis of developmental dysplasia of the hip (DDH) from geometric properties of acetabular shape extracted from three-dimensional (3D) ultrasonography (US). Materials and Methods In this retrospective multi-institutional study, 3D US was added to conventional two-dimensional (2D) US of 1728 infants (mean age, 67 days; age range, 3-238 days) evaluated for DDH from January 2013 to December 2016. Clinical diagnosis after more than 6 months follow-up was normal (n = 1347), borderline (Graf IIa, later normalizing spontaneously; n = 140) or dysplastic (Graf IIb or higher, n = 241)...
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29688159/radiomics-of-ct-features-may-be-nonreproducible-and-redundant-influence-of-ct-acquisition-parameters
#3
Roberto Berenguer, María Del Rosario Pastor-Juan, Jesús Canales-Vázquez, Miguel Castro-García, María Victoria Villas, Francisco Mansilla Legorburo, Sebastià Sabater
Purpose To identify the reproducible and nonredundant radiomics features (RFs) for computed tomography (CT). Materials and Methods Two phantoms were used to test RF reproducibility by using test-retest analysis, by changing the CT acquisition parameters (hereafter, intra-CT analysis), and by comparing five different scanners with the same CT parameters (hereafter, inter-CT analysis). Reproducible RFs were selected by using the concordance correlation coefficient (as a measure of the agreement between variables) and the coefficient of variation (defined as the ratio of the standard deviation to the mean)...
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29688158/prospective-comparison-of-the-diagnostic-accuracy-of-mr-imaging-versus-ct-for-acute-appendicitis
#4
Michael D Repplinger, Perry J Pickhardt, Jessica B Robbins, Douglas R Kitchin, Tim J Ziemlewicz, Scott J Hetzel, Sean K Golden, John B Harringa, Scott B Reeder
Purpose To compare the accuracy of magnetic resonance (MR) imaging with that of computed tomography (CT) for the diagnosis of acute appendicitis in emergency department (ED) patients. Materials and Methods This was an institutional review board-approved, prospective, observational study of ED patients at an academic medical center (February 2012 to August 2014). Eligible patients were nonpregnant and 12- year-old or older patients in whom a CT study had been ordered for evaluation for appendicitis. After informed consent was obtained, CT and MR imaging (with non-contrast material-enhanced, diffusion-weighted, and intravenous contrast-enhanced sequences) were performed in tandem, and the images were subsequently retrospectively interpreted in random order by three abdominal radiologists who were blinded to the patients' clinical outcomes...
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29688157/three-dimensional-us-in-infants-with-developmental-dysplasia-of-the-hip-ready-for-prime-time
#5
Diego Jaramillo
No abstract text is available yet for this article.
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29688156/radiation-segmentectomy-for-hepatocellular-carcinoma-ready-for-prime-time
#6
Constantinos T Sofocleous, F Edward Boas
No abstract text is available yet for this article.
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29688155/radiation-segmentectomy-potential-curative-therapy-for-early-hepatocellular-carcinoma
#7
Robert J Lewandowski, Ahmed Gabr, Nadine Abouchaleh, Rehan Ali, Ali Al Asadi, Ronald A Mora, Laura Kulik, Daniel Ganger, Kush Desai, Bartley Thornburg, Samdeep Mouli, Ryan Hickey, Juan Carlos Caicedo, Michael Abecassis, Ahsun Riaz, Riad Salem
Purpose To report long-term outcomes of radiation segmentectomy (RS) for early hepatocellular carcinoma (HCC). The authors hypothesized that outcomes are comparable to curative treatments for patients with solitary HCC less than or equal to 5 cm and preserved liver function. Materials and Methods This retrospective study included 70 patients (median age, 71 years; range, 22-96 years) with solitary HCC less than or equal to 5 cm not amenable to percutaneous ablation who underwent RS (dose of >190 Gy) between 2003 and 2016...
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29688154/use-of-myocardial-t1-mapping-at-3-0-t-to-differentiate-anderson-fabry-disease-from-hypertrophic-cardiomyopathy
#8
Gauri R Karur, Sean Robison, Robert M Iwanochko, Chantal F Morel, Andrew M Crean, Paaladinesh Thavendiranathan, Elsie T Nguyen, Shobhit Mathur, Syed Wasim, Kate Hanneman
Purpose To compare left ventricular (LV) and right ventricular (RV) 3.0-T cardiac magnetic resonance (MR) imaging T1 values in Anderson-Fabry disease (AFD) and hypertrophic cardiomyopathy (HCM) and evaluate the diagnostic value of native T1 values beyond age, sex, and conventional imaging features. Materials and Methods For this prospective study, 30 patients with gene-positive AFD (37% male; mean age ± standard deviation, 45.0 years ± 14.1) and 30 patients with HCM (57% male; mean age, 49.3 years ± 13.5) were prospectively recruited between June 2016 and September 2017 to undergo cardiac MR imaging T1 mapping with a modified Look-Locker inversion recovery (MOLLI) acquisition scheme at 3...
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29688153/medium-or-large-hepatocellular-carcinoma-sorafenib-combined-with-transarterial-chemoembolization-and-radiofrequency-ablation
#9
Kangshun Zhu, Jingjun Huang, Lisha Lai, Wensou Huang, Mingyue Cai, Jingwen Zhou, Yongjian Guo, Junwei Chen
Purpose To determine the safety and efficacy of sorafenib combined with transarterial chemoembolization (TACE) and radiofrequency ablation (RFA) (hereafter, S-TACE-RFA) in patients with medium or large (range, 3.1-7.0 cm in diameter) hepatocellular carcinoma (HCC). Materials and Methods This retrospective study evaluated the medical records of consecutive patients with medium or large HCC who underwent S-TACE-RFA or combined TACE and RFA (hereafter, TACE-RFA) from January 2010 to December 2014. Sorafenib was started 3-5 days after TACE, and RFA was performed 1-2 weeks after TACE...
April 24, 2018: Radiology
https://www.readbyqxmd.com/read/29668356/andrew-joseph-dwyer
#10
Peter L Choyke, Elizabeth C Jones, Lauren Kim
No abstract text is available yet for this article.
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29664342/downgrading-of-breast-masses-suspicious-for-cancer-by-using-optoacoustic-breast-imaging
#11
Gisela L G Menezes, Ruud M Pijnappel, Carla Meeuwis, Robertus Bisschops, Jeroen Veltman, Philip T Lavin, Marc J van de Vijver, Ritse M Mann
Purpose To assess the ability of optoacoustic (OA) ultrasonography (US) to help correctly downgrade benign masses classified as Breast Imaging Reporting and Data System (BI-RADS) 4a and 4b to BI-RADS 3 or 2. Materials and Methods OA/US technology uses laser light to detect relative amounts of oxygenated and deoxygenated hemoglobin in and around suspicious breast masses. In this prospective, multicenter study, results of 209 patients with 215 breast masses classified as BI-RADS 4a or 4b at US are reported. Patients were enrolled between 2015 and 2016...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29664341/cervical-cord-t1-weighted-hypointense-lesions-at-mr-imaging-in-multiple-sclerosis-relationship-to-cord-atrophy-and-disability
#12
Paola Valsasina, Mohammed Aboulwafa, Paolo Preziosa, Roberta Messina, Andrea Falini, Giancarlo Comi, Massimo Filippi, Maria A Rocca
Purpose To characterize the spatial distribution of cervical cord T1-weighted hypointense lesions in patients with multiple sclerosis (MS) and analyze their association with cord atrophy and disability. Materials and Methods For this prospective study that took place between 2014 and 2016, 3.0-T high-resolution T1-weighted cervical cord magnetic resonance (MR) images and clinical evaluations were obtained from 82 patients with relapsing-remitting MS (RRMS), 33 patients with secondary progressive MS (SPMS), 25 patients with primary progressive MS (PPMS), and 35 sex-matched healthy control participants...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29664340/pancreatic-ductal-adenocarcinoma-rim-enhancement-at-mr-imaging-predicts-prognosis-after-curative-resection
#13
Sunyoung Lee, Seong Hyun Kim, Hyung Kyu Park, Kee Taek Jang, Jeong Ah Hwang, Seonwoo Kim
Purpose To identify features at preoperative magnetic resonance (MR) imaging that could predict favorable prognosis after curative resection of pancreatic ductal adenocarcinoma (PDAC). Materials and Methods From January 2009 to December 2014, this retrospective study included 143 patients with surgically resected (ie, R0) PDAC who underwent preoperative MR imaging within 1 month before surgery. Clinical-pathologic and MR imaging findings for predicting disease-free survival (DFS) and overall survival (OS) were identified by using a Cox proportional hazards model...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29664339/general-practitioners-referring-adults-to-mr-imaging-for-knee-pain-a-randomized-controlled-trial-to-assess-cost-effectiveness
#14
Kim van Oudenaarde, Nynke M Swart, Johan L Bloem, Sita M A Bierma-Zeinstra, Paul R Algra, Patrick J E Bindels, Bart W Koes, Rob G H H Nelissen, Jan A N Verhaar, Pim A J Luijsterburg, Monique Reijnierse, Wilbert B van den Hout
Purpose To determine the cost-effectiveness of early referral by the general practitioner for magnetic resonance (MR) imaging compared with usual care alone in patients aged 18-45 years with traumatic knee symptoms. Materials and Methods Cost-utility analysis was performed parallel to a prospective multicenter randomized controlled trial in Dutch general practice. A total of 356 patients with traumatic knee symptoms were included from November 2012 to December 2015 (mean age, 33 years ± 8 [standard deviation]; 222 men [62%])...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29664338/impact-of-clinical-history-on-maximum-pi-rads-version-2-score-a-six-reader-120-case-sham-history-retrospective-evaluation
#15
Prasad R Shankar, Ravi K Kaza, Mahmoud M Al-Hawary, William R Masch, Nicole E Curci, Mishal Mendiratta-Lala, Michelle D Sakala, Timothy D Johnson, Matthew S Davenport
Purpose To assess the impact of clinical history on the maximum Prostate Imaging Recording and Data System (PI-RADS) version 2 (v2) score assigned to multiparametric magnetic resonance (MR) imaging of the prostate. Materials and Methods This retrospective cohort study included 120 consecutively selected multiparametric prostate MR imaging studies performed between November 1, 2016, and December 31, 2016. Sham clinical data in four domains (digital rectal examination, prostate-specific antigen level, plan for biopsy, prior prostate cancer history) were randomly assigned to each case by using a balanced orthogonal design...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29664337/pancreatic-stiffness-quantified-with-mr-elastography-relationship-to-postoperative-pancreatic-fistula-after-pancreaticoenteric-anastomosis
#16
Yu Shi, Ying Liu, Feng Gao, Yanqing Liu, Shengzhen Tao, Yue Li, Kevin J Glaser, Richard L Ehman, Qiyong Guo
Purpose To describe the relationship between conventional magnetic resonance (MR) imaging parameters and MR elastography of the pancreas in association with pancreatic histologic features and occurrence of postoperative pancreatic fistula (POPF). Materials and Methods Patients who underwent preoperative MR imaging (MR elastography and diffusion-, T1-, and T2-weighted imaging) followed by pancreatectomy with pancreaticoenteric anastomosis were included. The relationships between preoperative MR imaging parameters, demographic data, and intraoperative factors with POPF risk were analyzed with logistic regression analyses...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29664336/left-ventricular-myocardial-deformation-on-cine-mr-images-relationship-to-severity-of-disease-and-prognosis-in-amyloid-light-chain-amyloidosis
#17
Ke Wan, Jiayu Sun, Dan Yang, Hong Liu, Jie Wang, Wei Cheng, Qing Zhang, Zhi Zeng, Tianjing Zhang, Andreas Greiser, Marie-Pierre Jolly, Yuchi Han, Yucheng Chen
Purpose To measure left ventricular (LV) myocardial strain with cine magnetic resonance (MR) imaging and a deformable registration algorithm (DRA) and to assess the prognostic value of myocardial strain in patients with light-chain (AL) amyloidosis. Materials and Methods In this prospective study, 78 consecutive patients with AL amyloidosis who underwent contrast material-enhanced cardiac MR imaging were enrolled at West China Hospital. LV myocardial strains and late gadolinium enhancement (LGE) were evaluated...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29634441/renal-allograft-dysfunction-evaluation-with-shear-wave-sonoelastography
#18
Nitin P Ghonge, Mohita Mohan, Vikas Kashyap, Sanjiv Jasuja
Purpose To evaluate whether shear-wave sonoelastography can help differentiate stable renal allograft from acute allograft dysfunction and chronic allograft dysfunction and to correlate shear-wave sonoelastography measurements with resistive index (RI), serum creatinine level, estimated glomerular filtration rate (eGFR) obtained with the Nankivell equation, and biopsy findings. Materials and Methods A prospective study of 60 patients who had undergone renal transplantation was conducted between October 2014 and March 2016...
April 10, 2018: Radiology
https://www.readbyqxmd.com/read/29634440/breast-cancer-screening-two-or-three-heads-are-better-than-one
#19
Robert D Rosenberg, David Seidenwurm
No abstract text is available yet for this article.
April 10, 2018: Radiology
https://www.readbyqxmd.com/read/29634439/double-reading-in-breast-cancer-screening-cohort-evaluation-in-the-co-ops-trial
#20
Sian Taylor-Phillips, David Jenkinson, Chris Stinton, Matthew G Wallis, Janet Dunn, Aileen Clarke
Purpose To investigate the effect of double readings by a second radiologist on recall rates, cancer detection, and characteristics of cancers detected in the National Health Service Breast Screening Program in England. Materials and Methods In this retrospective analysis, 805 206 women were evaluated through screening and diagnostic test results by extracting 1 year of routine data from 33 English breast screening centers. Centers used double reading of digital mammograms, with arbitration if there were discrepant interpretations...
April 10, 2018: Radiology
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