Zhenghao Zhou, Tianyi Xia, Teng Zhang, Mingyang Du, Jiarui Zhong, Yunzhi Huang, Kai Xuan, Geyang Xu, Zhuo Wan, Shenghong Ju, Jun Xu
PURPOSE: Microvascular invasion (MVI) is a common complication of hepatocellular carcinoma (HCC) surgery, which is an important predictor of reduced surgical prognosis. This study aimed to develop a fully automated diagnostic model to predict pre-surgical MVI based on four-phase dynamic CT images. METHODS: A total of 140 patients with HCC from two centers were retrospectively included (training set, n = 98; testing set, n = 42). All CT phases were aligned to the portal venous phase, and were then used to train a deep-learning model for liver tumor segmentation...
December 5, 2023: Abdominal Radiology
Gabriel Duhancioglu, Hina Arif-Tiwari, Stefano Natali, Conner Reynolds, Neeraj Lalwani, Ann Fulcher
Gallstone-related disease comprises a spectrum of conditions resulting from biliary stone formation, leading to obstruction and inflammatory complications. These can significantly impact patient quality of life and carry high morbidity if not accurately detected. Appropriate imaging is essential for evaluating the extent of gallstone disease and assuring appropriate clinical management. Magnetic Resonance Imaging (MRI) techniques (including Magnetic Resonance Cholangiopancreatography (MRCP) are increasingly used for diagnosis of gallstone disease and its complications and provide high contrast resolution and facilitate tissue-level assessment of gallstone disease processes...
December 3, 2023: Abdominal Radiology
Fan Chai, Yingteng Ma, Caizhen Feng, Xiaoxuan Jia, Jingjing Cui, Jin Cheng, Nan Hong, Yi Wang
PURPOSE: To evaluate the efficacy of MRI-based radiomics and clinical models in predicting MTM-HCC. Additionally, to investigate the ability of the radiomics model designed for MTM-HCC identification in predicting disease-free survival (DFS) in patients with HCC. METHODS: A total of 336 patients who underwent oncological resection for HCC between June 2007 and March 2021 were included. 127 patients in Cohort1 were used for MTM-HCC identification, and 209 patients in Cohort2 for prognostic analyses...
December 2, 2023: Abdominal Radiology
Nisanard Pisuchpen, Anushri Parakh, Jinjin Cao, Kampon Yuenyongsinchai, Evita Joseph, Simon Lennartz, Sasiprang Kongboonvijit, Dushyant Sahani, Avinash Kambadakone
BACKGROUND: Urinary stones are frequently encountered in urology and are typically identified using non-contrast CT scans. Dual-energy CT (DECT) is a valuable imaging technique that produces material-specific images and allows for precise assessment of stone composition by estimating the effective atomic number (Zeff ), a capability not achievable with the conventional single-energy CT's attenuation measurement method. PURPOSE: To investigate the diagnostic performance and image quality of dual-layer detector DECT (dlDECT) in characterizing urinary stones in patients of different sizes...
December 2, 2023: Abdominal Radiology
Shamar Young, Art Abamyan, Dan Goldberg, Jack Hannallah, David Schaub, Salil Kalarn, Zachary Fitzgerald, Gregory Woodhead
PURPOSE: To evaluate the accuracy with which the iceball predicts the realized ablation zone in patients undergoing cryoablation of the liver. MATERIALS AND METHODS: Continuous patients who underwent cryoablation of primary or secondary malignancies of the liver were retrospectively reviewed. Iceball and ablation zone dimensions on 1 month follow up imaging were collected in three orientations, the long axis (LA), perpendicular transverse (PTR), and perpendicular craniocaudal (PCC)...
November 30, 2023: Abdominal Radiology
K van den Berg, S Wang, J M W E Willems, G J Creemers, J M L Roodhart, J Shkurti, J W A Burger, H J T Rutten, R G H Beets-Tan, J Nederend
PURPOSE: The shift from adjuvant to neoadjuvant treatment in colon cancer demands the radiological selection of patients for systemic therapy. The aim of this study was to evaluate the accuracy of the CT-based TNM stage and high-risk features, including extramural venous invasion (EMVI) and tumour deposits, in the identification of patients with histopathological advanced disease, currently considered for neoadjuvant treatment (T3-4 disease). METHODS: All consecutive patients surgically treated for non-metastatic colon cancer between January 2018 and January 2020 in a referral centre for colorectal cancer were identified retrospectively...
November 29, 2023: Abdominal Radiology
Atefe Pooyan, Bahar Mansoori, Carolyn Wang
With advancements in cancer treatment, the survival rates for many malignancies have increased. However, both the primary tumors and the treatments themselves can give rise to various complications. Acute symptoms in oncology patients require prompt attention. Abdominopelvic oncologic emergencies can be classified into four distinct categories: vascular, bowel, hepatopancreatobiliary, and bone-related complications. Radiologists need to be familiar with these complications to ensure timely diagnosis, which ultimately enhances patient outcomes...
November 28, 2023: Abdominal Radiology
Ryouna Abe, Kei Fukuzawa, Chiharu Yoshihara, Masakatsu Tano, Satoshi Saitoh
PURPOSE: Magnetic resonance elastography (MRE) is used to measure liver stiffness with gradient-recalled echo (GRE)-based and spin-echo echo planar imaging (SE-EPI)-based sequences. We compared the liver stiffness (LS) values of the two sequences on a 1.5-T MR imaging scanner. METHODS: This is a retrospective study. An MRE imaging section was obtained from a horizontal section of the liver. Region of interest was drawn on the elastogram, and the mean LS and pixel values were measured and compared...
November 27, 2023: Abdominal Radiology
Nikhil Gopal, Pouria Yazdian Anari, Aditi Chaurasia, Maria Antony, Paul Wakim, W Marston Linehan, Mark Ball, Evrim Turkbey, Ashkan Malayeri
OBJECTIVE: To determine the reliability of an MRI-based qualitative kidney imaging surveillance scoring system (KISSS) and assess which imaging features predict growth rate (GR) of renal tumors in patients with VHL. MATERIALS AND METHODS: We identified 55 patients with VHL with 128 renal tumors who underwent intervention from 2015 to 2020 at the National Cancer Institute. All patients had 2 preoperative MRIs at least 3 months apart. Two fellowship-trained radiologists scored each tumor on location and MR-sequence-specific imaging parameters from the earlier MRI...
November 27, 2023: Abdominal Radiology
Jin-Tao Huang, Bin-Yan Zhong, Wan-Ci Li, Nan Jiang, Duo Qian, Ze-Xin Hu, Hong Nie, Shuai Zhang, Jian Shen, Xiao-Li Zhu
OBJECTIVES: To estimate the safety and effectiveness of emergent transjugular intrahepatic portosystemic shunt (TIPS) creation for acute variceal bleeding (AVB) in cirrhotic patients with hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Data of thirty-three patients with AVB and HCC undergoing emergent TIPS creation from January 2016 to January 2022 were enrolled and were retrospectively analyzed. The primary outcomes were the safety of emergent TIPS creation, the bleeding control rate, and the rebleeding rate...
November 27, 2023: Abdominal Radiology
Bari Dane, Daniel Freedman, Kun Qian, Luke Ginocchio, Paul Smereka, Alec Megibow
PURPOSE: To quantitatively and qualitatively compare the degree of iodine removal in the collecting system from PCCT urographic phase-derived virtual noncontrast (VNC) images obtained at 140 kV versus 120 kV. METHODS: A retrospective PACS search identified adult patients (>18 years) who underwent a PCCT urogram for hematuria from 4/2022 to 4/2023 with available urographic phase-derived VNC images in PACS. Tube voltage (120 kV, 140 kV), body mass index, CTDIvol, dose length product (DLP), and size-specific dose estimate (SSDE) were recorded...
November 25, 2023: Abdominal Radiology
Linsha Yang, Duo Zhang, Tao Zheng, Defeng Liu, Yuan Fang
PURPOSE: Identify radiomics features associated with progression-free survival (PFS) and develop a predictive model for accurate PFS prediction in liver metastatic gastrointestinal stromal tumor patients (GIST). METHODS: This multi-center retrospective study involved a comprehensive review of clinical and imaging data pertaining to 211 patients with gastrointestinal stromal tumors (GIST) from Center A and B. A total of 147 patients with hepatic metastatic GIST were included, with 102 cases as the training set and 45 cases as the external validation set...
November 25, 2023: Abdominal Radiology
Yanqing Ma, Xiren Xu, Yi Lin, Jie Li, Hang Yuan
BACKGROUND: Microsatellite instability (MSI) is detected in approximately 15% of colorectal carcinoma (CRC) patients, which has emerged as a predictor of patient response to adjuvant chemotherapy. Rectal carcinoma (RC) is the most common type of CRC. Therefore, prediction of MSI status of RC is significant for personalized medication. The purpose of this article was to develop an integrative model that combines clinical characteristics and computed tomography-based (CT-based) tumoral/peritumoral radiomics to predict the MSI status in RC...
November 24, 2023: Abdominal Radiology
Jianan Chen, Weibin Zhang, Jingwen Bao, Kun Wang, Qiannan Zhao, Yuli Zhu, Yanling Chen
OBJECTIVES: The current study developed an ultrasound-based deep learning model to make preoperative differentiation among hepatocellular carcinoma (HCC), intrahepatic cholangiocarcinoma (ICC), and combined hepatocellular-cholangiocarcinoma (cHCC-ICC). METHODS: The B-mode ultrasound images of 465 patients with primary liver cancer were enrolled in model construction, comprising 264 HCCs, 105 ICCs, and 96 cHCC-ICCs, of which 50 cases were randomly selected to form an independent test cohort, and the rest of study population was assigned to a training and validation cohorts at the ratio of 4:1...
November 24, 2023: Abdominal Radiology
Yu Shen, Yanqiong Wen, Liang Bi, Xuyang Yang, Xiaoling Gong, Xiangbing Deng, Wenjian Meng, Ziqiang Wang
PURPOSE: Increasing studies have focused on neoadjuvant chemotherapy (NCT) in rectal cancer. However, few studies explored the differences in radiographic variation between patients treated with NCT and neoadjuvant chemoradiotherapy (NCRT). METHODS: Stage II/III rectal cancer patients from March 2016 to December 2019 meeting the criteria treated with NCRT or NCT were included. MRI features, including tumor location, longitudinal length, DWI signal, MRI tumor regression grade (mrTRG), and radiomic texture features, before and after neoadjuvant treatments were reviewed...
November 24, 2023: Abdominal Radiology
Muhammad Awais, Noman Khan, Ayimen Khalid Khan, Abdul Rehman
PURPOSE: Peritoneal carcinomatosis (PC) and peritoneal tuberculosis (PTB) have similar clinical and radiologic imaging features, which make it very difficult to differentiate between the two entities clinically. Our aim was to determine if the CT textural parameters of omental lesions among patients with PC were different from those with PTB. METHODS: All patients who had undergone omental biopsy at our institution from January 2010 to December 2018 and had a tissue diagnosis of PC or PTB were eligible for inclusion...
November 23, 2023: Abdominal Radiology
Zhiquan Zhuang, Jingqin Ma, Zihan Zhang, Shuai Ju, Guoqiang Gu, Minjie Yang, Jiaze Yu, Zhiping Yan, Wen Zhang, Jianjun Luo
PURPOSE: This study aimed to assess the safety and efficacy of endovascular managements, including splenic vein recanalization (SVR), partial splenic embolization (PSE), and percutaneous transsplenic gastric varices embolization combined with PSE (PSE+GVE), for management of SPH-related variceal hemorrhage (VH). METHODS: A total of 61 patients with SPH-related VH from three hospitals were enrolled and classified into three groups: the SVR group (Group 1, n=24), the PSE+GVE group (Group 2, n=17), and the PSE group (Group 3, n=20)...
November 23, 2023: Abdominal Radiology
Vetri Sudar Jayaprakasam, Semra Ince, Garima Suman, Pankaj Nepal, Thomas A Hope, Raj Mohan Paspulati, Tyler J Fraum
No abstract text is available yet for this article.
November 23, 2023: Abdominal Radiology
Banu Karaalioglu, Tansel Cakir, Yasin Kutlu, Mehmet Seker, Ahmet Bilici
PURPOSE: We aim to compare FDG-PET/CT and cross-sectional imaging (contrastenhanced CT/MRI) diagnostic abilities in detecting recurrence/progression of pancreaticobiliary system tumors and to reveal the clinical impact of integrated FDGPET/CT to CT/MRI on patient management. MATERIALS AND METHODS: FDG-PET/CT and CT/MRI scans of 70 patients from initiation of treatment until proven recurrence/progression were retrospectively evaluated. FDGPET/CT and contrast-enhanced CT/MRI accuracy, sensitivity, specificity, PPV and NPV are compared in terms of overall recurrence/progression diagnosis and sitespecific concern; local disease, local lymph node, and distant organ metastasis...
November 22, 2023: Abdominal Radiology
Moataz Soliman, Michael Magnetta, Abraham Salinas, Richard S Feinn, Yuri S Velichko, Frank H Miller, Linda C Kelahan
PURPOSE: To assess the diagnostic performance and reliability of 18 CT signs to diagnose cecal volvulus, a surgical emergency, versus a group of non-volvulus mimickers. MATERIALS AND METHODS: Four radiologists retrospectively and independently assessed 18 CT signs in 191 patients with cecal volvulus (n = 63) or a non-volvulus control group ((n = 128), including cecal bascule (n = 19), mobile cecum (n = 95), and colonic pseudo-obstruction (n = 14)) at a single institution from 2013 to 2021...
November 21, 2023: Abdominal Radiology
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.