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Abdominal Radiology

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https://www.readbyqxmd.com/read/28429056/prognostic-significance-of-supradiaphragmatic-lymph-nodes-at-initial-presentation-in-patients-with-stage-iii-high-grade-serous-ovarian-cancer
#1
L J McIntosh, A C O'Neill, S Bhanusupriya, S A Matalon, A D Van den Abbeele, N H Ramaiya, A B Shinagare
PURPOSE: To identify the optimal size threshold and to assess the prognostic significance of supradiaphragmatic lymph nodes at initial presentation of patients with high-grade serous ovarian cancer (HGSC). METHODS: This IRB-approved, HIPAA-compliant retrospective study included baseline pretreatment staging abdominal CTs of 88 women (mean age 62 years, SD 10.4, range 29-85) with FIGO stage III HGSC. Patients with stage IV disease were excluded due to worse prognosis and management guided by distant metastases...
April 20, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28429055/diagnostic-value-of-fourth-generation-iterative-reconstruction-algorithm-with-low-dose-ct-protocol-in-assessment-of-mesorectal-fascia-invasion-in-rectal-cancer-comparison-with-magnetic-resonance
#2
Davide Ippolito, Silvia Girolama Drago, C R Talei Franzesi, Alessandra Casiraghi, Sandro Sironi
PURPOSE: The purpose of the article is to compare the diagnostic performance about radiation dose and image quality of low-dose CT with iterative reconstruction algorithm (iDose4) and standard-dose CT in the assessment of mesorectal fascia (MRF) invasion in rectal cancer patients. MATERIALS AND METHODS: Ninety-one patients with biopsy-proven primary rectal adenocarcinoma underwent CT staging: 42 underwent low-dose CT, 49 underwent standard CT protocol. Low-dose contrast-enhanced MDCT scans were performed on a 256 (ICT, Philips) scanner using 120 kV, automated mAs modulation, iDose4 iterative reconstruction algorithm...
April 20, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28421244/texture-analysis-as-a-radiomic-marker-for-differentiating-renal-tumors
#3
HeiShun Yu, Jonathan Scalera, Maria Khalid, Anne-Sophie Touret, Nicolas Bloch, Baojun Li, Muhammad M Qureshi, Jorge A Soto, Stephan W Anderson
PURPOSE: To evaluate the utility of texture analysis for the differentiation of renal tumors, including the various renal cell carcinoma subtypes and oncocytoma. MATERIALS AND METHODS: Following IRB approval, a retrospective analysis was performed, including all patients with pathology-proven renal tumors and an abdominal computed tomography (CT) examination. CT images of the tumors were manually segmented, and texture analysis of the segmented tumors was performed...
April 18, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28421243/assessment-of-70-kev-virtual-monoenergetic-spectral-images-in-abdominal-ct-imaging-a-comparison-study-to-conventional-polychromatic-120-kvp-images
#4
Negin Rassouli, Hamid Chalian, Prabhakar Rajiah, Amar Dhanantwari, Luis Landeras
PURPOSE: To evaluate the image quality of 70-keV virtual monoenergetic (monoE) abdominal CT images compared to 120-kVp polychromatic images generated from a spectral detector CT (SDCT) scanner. METHODS: This prospective study included generation of a 120-kVp polychromatic dataset and a 70-keV virtual monoE dataset after a single contrast-enhanced CT acquisition on a SDCT scanner (Philips Healthcare) during portal venous phase. The attenuation values (HU), noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) were measured in the liver, spleen, pancreas, kidney, aorta, portal vein, and muscle...
April 18, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28421242/ct-features-of-hepatic-metastases-from-hepatoid-adenocarcinoma
#5
Min-Yung Chang, Hye Jin Kim, Seung Hyun Park, Hyunki Kim, Dong Kyu Choi, Joon Seok Lim, Mi-Suk Park, Myeong-Jin Kim, Honsoul Kim
PURPOSE: The purpose of this study was to report the imaging presentation of hepatic metastases from hepatoid adenocarcinoma (HAC). METHODS: We retrospectively identified 11 patients (10 men and 1 woman; median age 66) with HAC liver metastasis who underwent contrast-enhanced computed tomography (CT) which included arterial phase and portal venous phase. Two radiologists analyzed the imaging parameters, which included the enhancement pattern on arterial and portal phase images, necrosis, venous thrombi, and overall imaging diagnosis, and arrived at a consensus...
April 18, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28417170/reduced-dose-ct-with-model-based-iterative-reconstruction-compared-to-standard-dose-ct-of-the-chest-abdomen-and-pelvis-in-oncology-patients-intra-individual-comparison-study-on-image-quality-and-lesion-conspicuity
#6
Linda Nayeli Morimoto, Aya Kamaya, Isabelle Boulay-Coletta, Dominik Fleischmann, Lior Molvin, Lu Tian, George Fisher, Jia Wang, Jürgen K Willmann
PURPOSE: To compare image quality and lesion conspicuity of reduced dose (RD) CT with model-based iterative reconstruction (MBIR) compared to standard dose (SD) CT in patients undergoing oncological follow-up imaging. METHODS: Forty-four cancer patients who had a staging SD CT within 12 months were prospectively included to undergo a weight-based RD CT with MBIR. Radiation dose was recorded and tissue attenuation and image noise of four tissue types were measured...
April 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28413844/organo-axial-volvulus-of-the-small-intestine-radiological-case-report-and-consideration-for-its-mechanism
#7
Toshitaka Ishiguro, Takashi Hiyama, Katsuhiro Nasu, Yoshimasa Akashi, Manabu Minami
Gastrointestinal volvulus is mainly classified into two subtypes, mesentero-axial volvulus and organo-axial volvulus. The detailed imaging findings of organo-axial volvulus of the small intestine have never been reported as far as we know. In this article, we report a case of organo-axial volvulus of the small intestine, focusing on the computed tomography (CT) findings. An 80-year-old man was radiologically diagnosed as having organo-axial volvulus of the terminal ileum and it was confirmed by open surgery without adhesion or any other anatomical abnormalities...
April 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28409202/imaging-evaluation-of-ablative-margin-and-index-tumor-immediately-after-radiofrequency-ablation-for-hepatocellular-carcinoma-comparison-between-multidetector-row-ct-and-mr-imaging
#8
Sung Mo Kim, Sang Soo Shin, Byung Chan Lee, Jin Woong Kim, Suk Hee Heo, Hyo Soon Lim, Yong Yeon Jeong
PURPOSE: To prospectively compare multidetector-row CT (MDCT) and MR imaging (MRI) in the assessment of the ablative margin (AM) and index tumor immediately after radiofrequency (RF) ablation for hepatocellular carcinoma (HCC) and assess whether non-contrast MRI with limited sequences (T1- and T2-weighted imaging only) was superior to a conventional MDCT protocol. METHODS: A total of 33 consecutive patients with 42 HCCs were included in this study. Both MDCT and MR images were independently reviewed by two radiologists regarding the ability to visually discriminate between the AM and index tumor, and the AM status within ablation zones...
April 13, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28405698/the-patent-track-sign
#9
REVIEW
Saravana Kumar Swaminathan, Richard Hoau Gong Lo, Nanda Venkatanarasimha
No abstract text is available yet for this article.
April 12, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28401283/magnetic-resonance-imaging-of-the-scrotum-pictorial-review-with-ultrasound-correlation
#10
REVIEW
Mahan Mathur, Ian Mills, Michael Spektor
The purpose of this review is to showcase the added value of scrotal magnetic resonance imaging (MRI) in the workup of neoplastic and non-neoplastic entities. While ultrasound (US) remains the first-line imaging modality for evaluating scrotal pathology, MRI may add valuable information, particularly when US findings are equivocal. The inherent soft tissue resolution characteristics of MRI, as well as the ability to detect subtle enhancement and provide wider field-of-view imaging, can prove useful in evaluating inconclusive US findings...
April 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28401282/differentiation-of-cancerous-and-inflammatory-colorectal-perforations-using-multi-detector-computed-tomography
#11
Xu Hua Gong, Zhi Guo Zhuang, Jiong Zhu, Qi Feng, Jian Rong Xu, Li Jun Qian
PURPOSE: To determine reliable CT features to distinguish cancerous from inflammatory colorectal perforations. MATERIALS AND METHODS: A total of 43 patients with surgically and pathologically confirmed colorectal perforation caused by either colorectal cancer (n =27) or an inflammatory conditions (n = 16) were identified. Two radiologists independently assessed the contrast-enhanced CT features for locations of perforation, mural configurations, soft-tissue alterations, lymphadenopathy, and metastases...
April 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28401281/ct-angiography-and-3d-imaging-in-aortoiliac-occlusive-disease-collateral-pathways-in-leriche-syndrome
#12
REVIEW
Sameer Ahmed, Siva P Raman, Elliot K Fishman
Collateral pathways in aortoiliac occlusive disease are essential for arterial blood flow to the abdomen, pelvis, and lower extremities. These pathways can be broadly divided into systemic-systemic, visceral-visceral, and systemic-visceral collateral networks. MDCT angiography is the most commonly used modality for the diagnostic evaluation of patients with aortoiliac occlusive disease, allowing excellent evaluation of stenotic arterial segments, as well as beautifully illustrating resulting collateral pathways (particularly when utilizing 3D reconstruction techniques)...
April 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28401280/-fish-mouth-vertebrae-in-sickle-cell-anemia
#13
REVIEW
Eduardo Kaiser Ururahy Nunes Fonseca, Adham do Amaral E Castro, Durval do Carmo Barros Santos, Laercio Alberto Rosemberg
No abstract text is available yet for this article.
April 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28396922/-frosted-liver-appearance
#14
Venkatraman Indiran, R Vinoth Kumar
No abstract text is available yet for this article.
April 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28396921/mri-findings-of-chronic-abruption-oligohydramnios-sequence-caos-report-of-three-cases
#15
Yasuhisa Kurata, Aki Kido, Sachiko Minamiguchi, Eiji Kondoh, Kaori Togashi
Chronic abruption-oligohydramnios sequence (CAOS), characterized by chronic vaginal hemorrhage and oligohydramnios, is a rare clinical condition of pregnancy. Because CAOS is associated with preterm delivery and lung injury to the infant, it is a major clinical concern. This report describes three CAOS cases which presented characteristic MRI findings reflecting CAOS pathological mechanisms and pathological findings. First, in all cases, the placenta detached from the uterus at the peripheral portion of the placenta because of placental marginal hematoma...
April 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28396920/the-role-of-whole-lesion-apparent-diffusion-coefficient-analysis-for-predicting-outcomes-of-prostate-cancer-patients-on-active-surveillance
#16
Tsutomu Tamada, Hasan Dani, Samir S Taneja, Andrew B Rosenkrantz
PURPOSE: To explore the role of whole-lesion apparent diffusion coefficient (ADC) analysis for predicting outcomes in prostate cancer patients on active surveillance. METHODS: This study included 72 prostate cancer patients who underwent MRI-ultrasound fusion-targeted biopsy at the initiation of active surveillance, had a visible MRI lesion in the region of tumor on biopsy, and underwent 3T baseline and follow-up MRI examinations separated by at least one year. Thirty of the patients also underwent an additional MRI-ultrasound fusion-targeted biopsy after the follow-up MRI...
April 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28396919/transient-severe-motion-in-the-arterial-phase-during-gadoxetate-disodium-enhanced-mr-imaging-evaluation-of-patients-with-multiple-mr-examinations
#17
Won Hyeong Im, Ji Soo Song, Eun Hae Park, Hyo Sung Kwak
PURPOSE: To determine whether patients undergoing multiple gadoxetate disodium-enhanced magnetic resonance (MR) examinations who experienced transient severe motion (TSM) in the arterial phase were affected by the TSM noted in the first examination. MATERIALS AND METHODS: 214 patients who underwent three or more repeated gadoxetate disodium-enhanced MR imaging were retrospectively analyzed. Three radiologists scored all of the examinations demonstrating a motion artifact using a five-point rating scale...
April 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28396918/comparison-of-10-and-20-min-hepatobiliary-phase-images-on-gd-eob-dtpa-enhanced-mri-t1-mapping-for-liver-function-assessment-in-clinic
#18
Zhi-Peng Zhou, Li-Ling Long, Wei-Jia Qiu, Ge Cheng, Li-Juan Huang, Teng-Fei Yang, Zhong-Kui Huang
PURPOSE: To compare hepatobiliary phase (HBP) images obtained 10 and 20 min after Gd-EOB-DTPA-enhanced MRI for liver function assessment in clinic on 3.0 T MR imaging. METHODS: 103 patients were separated into four groups: 38 patients for the normal liver function (NLF) group, 33 patients for the liver cirrhosis with Child-Pugh A (LCA) group, 21 patients for the liver cirrhosis with Child-Pugh B group, and 11 patients for a liver cirrhosis with Child-Pugh C group...
April 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28396917/rigler-sign
#19
REVIEW
Venkatraman Indiran, V Sivakumar
No abstract text is available yet for this article.
April 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28396916/the-director-of-prostate-imaging-advancing-care-for-prostate-cancer-patients
#20
Antonio C Westphalen, Daniel J A Margolis, Andrew B Rosenkrantz
The radiologist's role extends far beyond interpretation and reporting of medical imaging. In this manuscript, we describe the role of the Director of Prostate Imaging. We believe that this model can and should be implemented at other institutions, ultimately serving to improve the care for prostate cancer patients. Moreover, this model can be translated to support the development of an array of patient-centered service lines not only in abdominal imaging, but throughout radiology practices at large.
April 10, 2017: Abdominal Radiology
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