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Abdominal Radiology

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https://www.readbyqxmd.com/read/30637472/usefulness-of-rapid-kv-switching-dual-energy-ct-in-renal-tumor-characterization
#1
İlkay Çamlıdağ, Mehmet Selim Nural, Murat Danacı, Ender Özden
PURPOSE: To investigate whether iodine content can discriminate between benign or malignant renal tumors, malign tumor subtypes, low-grade and high-grade tumors on rapid kv-switching dual-energy CT (rsDECT). METHODS: This prospective study enrolled 95 patients with renal tumors who underwent rsDECT for tumor characterization between 2016 and 2018. Attenuation on true and virtual unenhanced images, absolute enhancement and enhancement ratio and iodine content of each lesion on nephrographic phase iodine density images were measured...
January 14, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30631903/development-and-validation-of-an-imaging-and-clinical-scoring-system-to-predict-early-mortality-in-spontaneous-ruptured-hepatocellular-carcinoma-treated-with-transarterial-embolization
#2
Kam-Ho Lee, Man-Lap Donald Tse, Martin Law, Andrew Kai-Chun Cheng, Ho-Yuen Frank Wong, Man-Leung Yu, Yan-Lin Li, Yuen-Chi Ho, Ferdinand Chu, Wendy Wai-Man Lam
PURPOSE: To develop and validate a scoring system using a combination of imaging and clinical parameters to predict 30-day mortality in ruptured HCC (rHCC) patients after transarterial embolization (TAE). METHODS: 98 consecutive patients with rHCC who underwent abdominal CT and subsequent TAE between January 2007 and December 2016 were retrospectively reviewed. The CT scans were reviewed by two radiologists blinded to the patient outcome. Clinical parameters including serum bilirubin, albumin, INR, creatinine, and hemoglobin were recorded...
January 10, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30612157/prediction-of-liver-remnant-regeneration-after-living-donor-liver-transplantation-using-preoperative-ct-texture-analysis
#3
Ji-Eun Kim, Jung Hoon Kim, Sang Joon Park, Seo-Youn Choi, Nam-Joon Yi, Joon Koo Han
PURPOSE: To predict the rate of liver regeneration after living donor liver transplantation (LDLT) using pre-operative computed tomography (CT) texture analysis. MATERIALS AND METHODS: 112 living donors who performed right hepatectomy for LDLT were included retrospectively. We measured the volume of future remnant liver (FLR) on pre-operative CT and the volume of remnant liver (LR) on follow-up CT, taken at a median of 123 days after transplantation. The regeneration index (RI) was calculated using the following equation: [Formula: see text]...
January 5, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30610247/mucinous-appendiceal-neoplasms-classification-imaging-and-hipec
#4
REVIEW
David J Bartlett, Paul G Thacker, Travis E Grotz, Rondell P Graham, Joel G Fletcher, Wendaline M VanBuren, Veena R Iyer, Jeff L Fidler, Christine O Menias, Nabil Wasif, Shannon P Sheedy
Recent advances, specifically cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC), offer advantages compared to the traditional therapeutic approach of systemic chemotherapy in the treatment of peritoneal carcinomatosis from mucinous appendiceal neoplasms (MAN). This review provides an up-to-date, comprehensive summary of the histologic classification of MAN, reviews common imaging findings of mucoceles and pseudomyxoma peritonei, and describes the radiologist's role in the multidisciplinary care team in quantifying disease and in helping select patients for definitive surgery...
January 4, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30607433/a-case-of-immunoglobulin-g4-related-inflammatory-pseudotumor-mimicking-renal-cell-carcinoma
#5
Hiroshi Watanabe, Hajime Tanaka, Yasuhisa Fujii, Makoto Kodama, Takumi Akashi, Tomoyuki Fujioka, Kazunori Kubota, Yukihisa Saida, Ukihide Tateishi
In a 69-year-old woman with a history of Mikulicz's disease, a hypoechoic solitary renal mass was identified on routine ultrasound examination. Based on the findings of computed tomography (CT) and magnetic resonance imaging (MRI), renal cell carcinoma was a possible diagnosis. Subsequent partial nephrectomy revealed a mass characterized by an increased number of blood vessels, internal hemorrhage, and a thick fibrous capsule. Immunohistochemically, the mass comprised of tubulointerstitial nephritis with increased immunoglobulin (Ig)G4-positive plasma cells and fibrosis...
January 3, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30603883/the-maiden-waist-sign-of-the-ureters
#6
REVIEW
Janardhana Ponnatapura, Raymond B Dyer
No abstract text is available yet for this article.
January 2, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30603882/the-utility-of-diffusion-weighted-imaging-in-improving-the-sensitivity-of-li-rads-classification-of-small-hepatic-observations-suspected-of-malignancy
#7
Mohammad Abd Alkhalik Basha, Rania Refaat, Faten Fawzy Mohammad, Mai E M Khamis, Ahmed Mohamed El-Maghraby, Ahmed A El Sammak, Rania M Al-Molla, Heba A E Mohamed, Ahmad Abdullah Alnaggar, Hanan Abdelhameed Hassan, Taghreed M Azmy, Ahmed M Alaa Eldin, Mostafa Mohamad Assy, Mohamad Zakarya AlAzzazy, Khaled Mohamed Altaher, Heba Fathy Tantawy, Sameh Saber, Mohamed I Amin, Ahmed Mohamed Alsowey, Mohamed Hesham Saleh Radwan, Heba F Taha, Talaat Fathy, Amr Shaaban Hanafy, Eman H Abdelbary
PURPOSE: We investigated the added value of diffusion-weighted imaging (DWI)/apparent diffusion coefficient (ADC) in the categorization of small hepatic observation (≤ 20 mm) detected in patients with chronic liver disease in reference to LI-RADS (liver imaging reporting and data system) classification system. METHODS: We prospectively evaluated 165 patients with chronic liver disease with small hepatic observations (≤ 20 mm) which were previously categorized as LI-RADS grade 3-5 on dynamic contrast-enhanced CT (DCE-CT)...
January 2, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30603881/diagnostic-performance-of-f-18-fdg-pet-ct-for-prediction-of-kras-mutation-in-colorectal-cancer-patients-a-systematic-review-and-meta-analysis
#8
Seong-Jang Kim, Kyoungjune Pak, Keunyoung Kim
OBJECTIVE: The purpose of the current study was to investigate the diagnostic performance of F-18 fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) for the prediction of v-Ki-ras-2 Kirsten rat sarcoma viral oncogene homolog (KRAS) mutation in colorectal cancer (CRC) patients through a systematic review and meta-analysis. METHODS: The PubMed and EMBASE database, from the earliest available date of indexing through April 30, 2018, were searched for studies evaluating the diagnostic performance of F-18 FDG PET/CT for prediction of KRAS mutation in CRC patients...
January 2, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30603880/differentiation-of-pancreatic-neuroendocrine-tumors-from-pancreas-renal-cell-carcinoma-metastases-on-ct-using-qualitative-and-quantitative-features
#9
Christian B van der Pol, Stefanie Lee, Scott Tsai, Natasha Larocque, Abdullah Alayed, Phillip Williams, Nicola Schieda
PURPOSE: To assess qualitative and quantitative imaging features on enhanced CT that may differentiate pancreatic neuroendocrine tumors (PNETs) from pancreatic renal cell carcinoma (RCC) metastases. METHODS: This IRB-approved multi-center retrospective case-control study compared 43 resected PNETs and 28 resected RCC metastases with pre-operative enhanced CT identified consecutively between 2003 and 2017. Two blinded radiologists (R1/R2) independently assessed tumor location, attenuation (relative to pancreas), composition (solid/cystic/mixed), homogeneity (homogeneous/heterogeneous), calcification, multiplicity, and for main pancreatic duct (MPD) dilation...
January 2, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600386/magnetic-resonance-elastography-se-epi-vs-gre-sequences-at-3t-in-a-pediatric-population-with-liver-disease
#10
Juan S Calle-Toro, Suraj D Serai, Erum A Hartung, David J Goldberg, Bradley D Bolster, Kassa Darge, Sudha A Anupindi
PURPOSE: The goal of our study is to compare hepatic stiffness measures using gradient-recalled echo (GRE) versus spin-echo echo planar imaging (SE-EPI)-based MR Elastography (MRE) at 3T used to measure hepatic stiffness in a patients with suspected liver diseases. MATERIALS AND METHODS: This retrospective study included 52 patients with liver disease who underwent a 3T MRE exam including both an investigational SE-EPI-based technique and a product GRE-based technique...
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600385/playboy-bunny-sign
#11
REVIEW
Subramaniyan Ramanathan, Adnan Sheikh
No abstract text is available yet for this article.
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600384/sarcopenia-predicts-90-day-mortality-in-elderly-patients-undergoing-emergency-abdominal-surgery
#12
Erik Brandt, Line Toft Tengberg, Morten Bay-Nielsen
PURPOSE: Image-based measurement of sarcopenia is an established predictor of a decreased outcome for a large variety of surgical procedures. Sarcopenia in elderly patients undergoing emergency abdominal surgery has not been well studied. This study aims to investigate the association between the total psoas area (TPA) and postoperative mortality after 90 days in a group of elderly emergency laparotomy patients. METHODS: We retrospectively reviewed the emergency CT-scans of 150 elderly patients from a consecutive cohort undergoing emergency abdominal surgery at our surgical center...
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600383/double-barrel-shotgun-sign
#13
REVIEW
Venkatraman Indiran, Jagannathan Kokilavani
No abstract text is available yet for this article.
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600382/duodenal-obstruction-induced-by-retroperitoneal-progression-of-bladder-cancer-a-report-of-two-cases
#14
Koji Tokunaga, Akihiro Furuta, Shigeki Arizono, Yuki Teramoto, Hiromitsu Negoro, Aki Kido, Hiroyoshi Isoda, Kaori Togashi
Bladder cancer usually forms a papillary structure. Progression along the cavity or membranous structures surrounding the bladder, rectum, or retroperitoneum without formation of a discrete mass is rare. We here present two patients with duodenal obstruction caused by retroperitoneal progression of bladder cancer, in both of whom computed tomography revealed bladder and rectal wall thickening with a malignant target sign, thickened mesorectal fascia with abnormal tissue stranding, and increased perirectal fat density...
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600381/comparison-of-characteristic-computed-tomographic-findings-of-gastrointestinal-and-non-gastrointestinal-stromal-tumors-in-the-small-intestine
#15
Akitoshi Inoue, Shinichi Ota, Shigetaka Sato, Norihisa Nitta, Tomoharu Shimizu, Hiromichi Sonoda, Masaji Tani, Hiromitsu Ban, Osamu Inatomi, Akira Ando, Ryoji Kushima, Kiyoshi Murata
PURPOSE: We aimed to reveal specific findings of gastrointestinal stromal tumors (GISTs) in the small intestine on contrast-enhanced computed tomography (CT) by comparing GISTs with non-GISTs. METHODS: We enrolled 28 patients with 39 GISTs and 20 patients with 22 non-GISTs who underwent enterectomy with a preoperative diagnosis of small intestinal tumor. All lesions were diagnosed by histopathological examination. Two radiologists independently evaluated internal homogeneity, growth pattern, calcification, intratumoral hemorrhage, degeneration, ulceration, and lymphadenopathy and measured the maximum diameter of the tumor and contrast-enhanced CT (CECT) value of the solid portion as well as the diameter and CT value of the feeding artery and drainage vein on CECT in the arterial and venous phases...
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600380/letter-to-the-editor-regarding-the-journal-article-published-in-abdominal-radiology-reuse-and-reduce-abdominal-ct-lumbar-spine-mri-and-a-potential-1-2-to-3-4-billion-dollars-in-cost-savings
#16
LETTER
https://www.readbyqxmd.com/read/30600379/the-expanded-gallbladder-fossa-sign-in-liver-cirrhosis
#17
REVIEW
Giuseppe Mamone, Roberto Miraglia
No abstract text is available yet for this article.
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600378/evaluation-of-diagnostic-accuracy-multidetector-ct-image-noise-correction-improves-specificity-of-a-gaussian-model-based-algorithm-used-for-characterization-of-incidental-adrenal-nodules
#18
Toshimasa J Clark, Larson D Hsu, Daniel Hippe, Sophie Cowan, Jonathan Carnell, Carolyn L Wang
OBJECTIVES: To investigate whether the histogram analysis method of characterizing adrenal nodules as adenomas is affected by increased noise with modern CT technique, and if an extension that allows for noise correction will improve diagnostic performance. MATERIALS AND METHODS: This is a HIPAA-compliant, IRB-approved retrospective study performed on 58 total patients. The first group of 29 patients had 33 adrenal lesions that were pathology-proven non-adenomas...
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600377/beaded-bile-ducts-in-primary-sclerosing-cholangitis
#19
REVIEW
Dario Giambelluca, Claudio Leto, Francesco D'Arpa, Massimo Midiri, Giuseppe Salvaggio
No abstract text is available yet for this article.
January 1, 2019: Abdominal Radiology
https://www.readbyqxmd.com/read/30600376/the-enlarged-hilar-periportal-space-sign-in-liver-cirrhosis
#20
REVIEW
Giuseppe Mamone, Roberto Miraglia
No abstract text is available yet for this article.
January 1, 2019: Abdominal Radiology
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