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Clinical Imaging

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https://www.readbyqxmd.com/read/28456057/wrist-mr-imaging-in-children-effect-on-clinical-diagnosis-and-management
#1
Kevin W Taylor, Michael M Moore, James Brian, Sosamma Methratta, Stephanie Bernard
OBJECTIVES: Evaluate the impact of wrist MRI in children on clinical diagnosis and management. MATERIALS AND METHODS: Four year retrospective analysis including demographics, MRI diagnoses, and effect on diagnoses and management were determined. RESULTS: 101 patients were included. Wrist MRI altered management in 86% (95% CI: 77-92%) and diagnosis in 46% (36-56%) of patients. MRI changed both diagnosis and management in 41% (31-51%), changed management only in 46% (35-56%), changed diagnosis only in 5% (2-12%), and had no change in diagnosis or management in 9% (95% CI: 4-17%)...
April 22, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28441549/plain-radiography-may-underestimate-the-burden-of-body-packer-ingestion-a-case-report
#2
Yonah B Esterson, Vihas Patel, Jeffrey Nicastro, Barak Friedman
Body packing refers to the intracorporeal concealment of illicit drugs. Here we report the case of a 55-year-old body packer who presented with palpitations, visual hallucinations, and a sense of impending death. Abdominal radiography demonstrated five ovoid foreign bodies overlying the rectum. At subsequent gastrotomy and cecotomy, thirty-eight cocaine-containing packets were retrieved from the stomach and ascending colon as well as from the rectum. As the contraband market evolves new techniques to evade detection, evaluation of the burden of body packer ingestion has become increasingly challenging...
April 20, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28437714/additional-value-of-venous-phase-added-to-aortic-ct-angiography-in-patients-with-aortic-aneurysm
#3
Yukichi Tanahashi, Satoshi Goshima, Hiroshi Kondo, Yoshifumi Noda, Kota Sakurai, Hiroshi Kawada, Nobuyuki Kawai, Shigeru Furui, Masayuki Matsuo
PURPOSE: To compare diagnostic performance of unenhanced and CTA images (Image set 1) to that of combined unenhanced, CTA, and venous-phase images (Image set 2) for incidentalomas in patients with aortic aneurysm. METHODS: Preoperative CT Images of consecutive 240 patients were reviewed by two observers for incidentalomas. Diagnostic performance was assessed. RESULTS: Sensitivity was higher in Image set 2 than Image set 1 in observer 1 and overall (P=0...
April 13, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28410478/non-contrast-mri-diagnosis-of-adhesive-capsulitis-of-the-shoulder
#4
Andrew S Chi, John Kim, Suzanne S Long, William B Morrison, Adam C Zoga
PURPOSE: To investigate non-contrast MRI findings of clinical adhesive capsulitis. METHODS: 31 non-contrast, non-arthrographic, shoulder MRIs were evaluated for coracohumeral ligament thickness, rotator interval infiltration, and axillary recess thickening/edema. RESULTS: In detection of adhesive capsulitis, sensitivity is 76.7% and specificity is 53.3% for coracohumeral ligament thickening, sensitivity is 66.7% and specificity is 55.2% for coracohumeral ligament thickening and rotator interval infiltration, and sensitivity is 23...
April 7, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28402836/reproducibility-and-diagnostic-performance-of-shear-wave-elastography-in-evaluating-breast-solid-mass
#5
Sun Hong, Ok Hee Woo, Hye Seon Shin, Soon-Young Hwang, Kyu Ran Cho, Bo Kyoung Seo
Shear wave elastography (SWE) was performed independently by two radiologists in 264 solid breast masses. The images were reviewed for color overlay pattern (COP) classification by the two radiologists, double blinded to any information. The interobserver agreement of the COP was almost perfect (κ=0.908) and high in Emax (ICC=0.89). The AUC value of the COP (0.954) was significantly higher than that of Emax (0.915) (p=0.002) but not significantly different from that of Emax combined with COP (0.957) (p=0.098)...
April 6, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28399447/contrast-enhanced-ct-features-of-hepatoblastoma-can-we-predict-histopathology
#6
Akshay D Baheti, A Luana Stanescu, Ning Li, Teresa Chapman
BACKGROUND: Hepatoblastoma is the most common hepatic malignancy occurring in the pediatric population. Intratumoral cellular behavior varies, and the small-cell undifferentiated histopathology carries a poorer prognosis than other tissue subtypes. Neoadjuvant chemotherapy is recommended for this tumor subtype prior to surgical resection in most cases. Early identification of tumors with poor prognosis could have a significant clinical impact. Objective The aim of this work was to identify imaging features of small-cell undifferentiated subtype hepatoblastoma that can help distinguish this subtype from more favorable tumors and potentially guide the clinical management...
April 6, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28395192/comparative-functional-neuroanatomy-between-implicit-and-explicit-memory-tasks-under-negative-emotional-condition-in-schizophrenia
#7
Xiao-Li Song, Gwang-Won Kim, Chung-Man Moon, Gwang-Woo Jeong
PURPOSE: To evaluate the brain activation patterns in response to negative emotion during implicit and explicit memory in patients with schizophrenia. MATERIAL AND METHODS: Fourteen patients with schizophrenia and 14 healthy controls were included in this study. The 3.0T fMRI was obtained while the subjects performed the implicit and explicit retrievals with unpleasant words. RESULTS: The different predominant brain activation areas were observed during the implicit retrieval and explicit with unpleasant words...
April 6, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28399448/apparent-diffusion-coefficient-adc-of-the-vitreous-humor-and-susceptibility-weighted-imaging-swi-of-the-retina-in-abused-children-with-retinal-hemorrhages
#8
Misun Hwang, Samuel S Shin, Matthew A Thimm, Anish Ghodadra, Christin L Sylvester, Ken Nischal, Ashok Panigrahy, Giulio Zuccoli
This study speculated that the apparent diffusion coefficient (ADC) of the vitreous humor might be altered in the setting of abusive head trauma (AHT) with retinal hemorrhages (RH). Fourty-four subjects were analyzed (n=20 AHT cases; n=24 controls). There was no statistically significant difference in normalized ADC values between the cases and controls (-0.14 and -0.08 respectively, p=0.46), but analysis of RH by susceptibility weighted imaging (SWI) compared to dilated funduscopic exam demonstrated statistically significant correlation (p=0...
April 3, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28407511/clinical-and-cross-sectional-imaging-features-of-spontaneous-pancreatic-pseudocyst-portal-vein-fistula
#9
Francesco Alessandrino, Corinne Strickland, Amirkasra Mojtahed, Steven C Eberhardt, Koenraad J Mortele
PURPOSE: To evaluate clinical and imaging features of pancreatic pseudocyst-portal vein fistula (PPVF). METHODS: Patients with evidence of PPVF on CT/MRI were included. Clinical presentation, outcomes, imaging appearance of the portal vein were recorded. RESULTS: 75% of patients developed portal hypertension, 62% cavernous transformation of the portal vein and 25% portal biliopathy. PPVF presented on CT as fluid-attenuated portal vein, and on MRI as T2-weighted hyperintense fluid-filled portal vein...
April 1, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28395191/comparison-of-t2-weighted-imaging-diffusion-weighted-imaging-and-contrast-enhanced-t1-weighted-mr-imaging-for-evaluating-perianal-fistulas
#10
Jiyeon Baik, Seung Ho Kim, Yedaun Lee, Jung-Hee Yoon
PURPOSE: To compare the lesion conspicuity and diagnostic performance of three imaging data sets (T2WI, combined T2WI and DWI [combined DWI], contrast-enhanced (CE)-T1WI) in assessing perianal fistulas. METHODS: Two radiologists with 7 and 15years of experience assessed 28 fistulas from 24 patients in each image set. RESULTS: The lesion conspicuity was improved for only one reader after reading the combined DWI (P=0.0039) and CE-T1WI (P=0...
March 31, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28395190/preferential-sites-of-metastatic-relapse-on-mri-of-initially-localized-ependymoma-in-children
#11
Mika Shapira Rootman, Osnat Konen, Iris Fried, Helen Toledano
OBJECTIVE: Relapse of ependymoma in childhood portends a grave prognosis. While the detection of local recurrence is usually simple, spotting leptomeningeal metastasis might be challenging. We aimed to evaluate possible "hotspots" where metastasis tend to appear. MATERIALS AND METHODS: Medical records and Magnetic Resonance (MR) studies of all patients diagnosed with brain ependymomas between the years 2000-2015 were reviewed. RESULTS: Leptomeningeal spread was detected among 42% of relapsed patients...
March 30, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28364580/end-organ-radiographic-manifestations-of-cranial-neuropathies-a-concise-review
#12
Vijay A Patel, Thomas T Zacharia, David Goldenberg, Johnathan D McGinn
BACKGROUND: Cranial neuropathies are a spectrum of disorders associated with dysfunction of one or more of the twelve cranial nerves and the subsequent anatomic structures they innervate. OBJECTIVE: The purpose of this article is to review radiographic imaging findings of end-organ aberrations secondary to cranial neuropathies. METHOD: All articles related to cranial neuropathies were retrieved through the PubMed MEDLINE NCBI database from January 1, 1991 to August 31, 2014...
March 23, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28363119/diagnosis-of-grave-s-disease-with-pulmonary-hypertension-on-chest-ct
#13
Hwa Yeon Lee, Seung Min Yoo, Hye Rin Kim, Eun Ju Chun, Charles S White
OBJECTIVE: To evaluate the diagnostic accuracy of chest CT findings to diagnose Grave's disease in pulmonary hypertension. METHODS: We retrospectively evaluated chest CT and the medical records of 13 patients with Grave's disease with (n=6) or without pulmonary hypertension (n=7) and in 17 control patients. RESULTS: Presence of iso-attenuation of diffusely enlarged thyroid glands compared with adjacent neck muscle on non-enhanced CT as a diagnostic clue of Grave's disease, and assessment of pulmonary hypertension on CT has high diagnostic accuracy...
March 23, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28334618/is-there-a-role-of-magnetic-resonance-imaging-in-deciding-to-stop-anti-tumor-necrosis-factor-treatment-in-ileal-crohn-s-disease
#14
Jose C Gallego, Ana Echarri
PURPOSE: This study was performed to assess the ability of magnetic resonance enterography to predict the evolution of patients in whom anti-tumor necrosis factor-α therapy was suspended. METHODS: A prospective study of patients with ileal Crohn's disease was performed. RESULTS: Twenty-nine patients were included. Patients who later relapsed showed higher magnetic resonance scores than those who did not relapse (4.2 vs. 2.5, respectively; p<0...
March 16, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28324714/association-between-nephrolithiasis-and-fatty-liver-detected-on-non-enhanced-ct-for-clinically-suspected-renal-colic
#15
Abdel-Rauf Zeina, Limor Goldenberg, Alicia Nachtigal, Rabea Hasadia, Walid Saliba
PURPOSE: To estimate a direct association between nephrolithiasis and hepatosteatosis in patients referred to CT due to clinical suspicion of renal colic. METHODS: A 508 non-contrast CT scans were examined for calculi in the kidneys or urinary tract, including measurements of liver attenuation, spleen attenuation, thickness of visceral and subcutaneous fat. Logistic regression examined the association of nephrolithiasis and hepatosteatosis findings. RESULTS: Nephrolithiasis was found in 421 (83...
March 16, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28364724/magnetic-resonance-imaging-characteristics-of-granulomatous-mastitis
#16
Amanda N Chu, Stephen J Seiler, Jody C Hayes, Rachel Wooldridge, Jessica H Porembka
Granulomatous mastitis (GM) is a benign chronic inflammatory condition of the breast. This study was performed to determine the utility of magnetic resonance imaging (MRI) in differentiating GM from malignancy. MRI findings in 12 women with clinical or histopathologically-proven GM were retrospectively reviewed. Non-mass enhancement on MRI was present in all 12 patients with clustered ring enhancement being the most common pattern (n=7, 58%). Architectural distortion (n=10, 83%), skin thickening (n=10, 83%) and focal skin enhancement (n=10, 83%) were also very common...
March 15, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28346897/absence-of-the-right-common-carotid-artery-a-rare-case-without-separate-origins-of-the-internal-and-external-carotid-arteries
#17
Gretchen Quinones, Ashok Srinivasan
Absence of the common carotid artery (CCA) is a rare anomaly. In the few cases described in the literature, it has been typically associated with separate origins of the internal carotid artery (ICA) and external carotid artery (ECA) Fife (1921), Boyd (1934), Rossiti and Raininko (2001), Cerase et al. (2009), Drazin et al. (2010), Yim et al. (2009), Monaco et al. (2009), Jerius et al. (1995), Dahn et al. (1999), Cakirer et al. (2002), Choi et al. (2015), Bryan et al. (1978), Horowitz et al. (2003), Roberts and Gerald (1978), Rajeshwari (2013), Purkayastha et al...
March 15, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28334616/comparison-of-mri-grading-for-cervical-neural-foraminal-stenosis-based-on-axial-and-oblique-sagittal-images-concordance-and-reliability-study
#18
Wooil Kim, Kyung-Sik Ahn, Chang Ho Kang, Woo Young Kang, Kyung-Sook Yang
The aim of this study was to assess the concordance between magnetic resonance imaging (MRI) grading for cervical neural foraminal stenosis (CNFS) based on axial and oblique sagittal images and evaluate the reliability of each grading plane. CNFS was graded at C2-3 to C7-T1 levels based on axial and oblique sagittal images separately by three radiologists. The concordance between CNFS grading based on axial and oblique sagittal images was strong for all three observers (Kendall's W=0.80, 0.79, and 0.82), despite the tendency of higher grading with oblique sagittal images...
March 15, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28324715/assessment-of-clinical-and-radiologic-differences-between-small-and-large-adrenal-pheochromocytomas
#19
Dong Won Kim, Seong Kuk Yoon, Sang Hyeon Kim, Eun Ju Kang, Hee Jin Kwon
OBJECTIVE: To evaluate differences in clinical and radiologic features of small and large pheochromocytomas. MATERIALS AND METHODS: This study included 39 patients with adrenal pheochromocytomas. Several clinical and radiologic features were statistically analyzed and compared between small and large pheochromocytomas. RESULTS: No significant differences were found in clinical features between them. Small pheochromocytomas had more relatively homogeneous attenuation although large pheochromocytomas had more cystic or necrotic changes...
March 10, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28314200/contrast-reaction-training-in-us-radiology-residencies-a-coardri-study
#20
Christina A LeBedis, Andrew B Rosenkrantz, Hansel J Otero, Summer J Decker, Robert J Ward
OBJECTIVE: To perform a survey-based assessment of current contrast reaction training in US diagnostic radiology residency programs. METHODS: An electronic survey was distributed to radiology residency program directors from 9/2015-11/2015. RESULTS: 25.7% of programs responded. 95.7% of those who responded provide contrast reaction management training. 89.4% provide didactic lectures (occurring yearly in 71.4%). 37.8% provide hands-on simulation training (occurring yearly in 82...
March 10, 2017: Clinical Imaging
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