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Hepatocellular carcinoma, MRI

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https://www.readbyqxmd.com/read/28217239/diagnostic-accuracy-of-gd-eob-dtpa-for-detection-hepatocellular-carcinoma-hcc-a-comparative-study-with-dynamic-contrast-enhanced-magnetic-resonance-imaging-mri-and-dynamic-contrast-enhanced-computed-tomography-ct
#1
Massimo Imbriaco, Serena De Luca, Milena Coppola, Mario Fusari, Michele Klain, Marta Puglia, Pierpaolo Mainenti, Raffaele Liuzzi, Simone Maurea
BACKGROUND: To compare the diagnostic accuracy of hepato-biliary (HB) phase with gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic acid (Gd-EOB-DTPA) with dynamic contrast-enhanced MR imaging (DCEMRI) and contrast-enhanced CT (DCECT) for hepatocellular carcinoma (HCC) detection. MATERIAL/METHODS: 73 patients underwent DCECT and Gd-EOB-DTPA-3T-MR. Lesions were classified using a five-point confidence scale. Reference standard was a combination of pathological evidence and tumor growth at follow-up CT/MR at 12 months...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28154910/value-of-tumor-stiffness-measured-with-mr-elastography-for-assessment-of-response-of-hepatocellular-carcinoma-to-locoregional-therapy
#2
Sonja Gordic, Jad Bou Ayache, Paul Kennedy, Cecilia Besa, Mathilde Wagner, Octavia Bane, Richard L Ehman, Edward Kim, Bachir Taouli
PURPOSE: The aim of the study was to correlate tumor stiffness (TS) measured with MR elastography (MRE) with degree of tumor enhancement and necrosis on contrast-enhanced T1-weighted imaging (CE-T1WI) in hepatocellular carcinomas (HCC) treated with Yttrium-90 radioembolization (RE) or transarterial chemoembolization plus radiofrequency ablation (TACE/RFA). MATERIAL AND METHODS: This retrospective study was IRB-approved and the requirement for informed consent was waived...
February 2, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28153667/quantitative-analysis-of-gadoxetic-acid-enhanced-magnetic-resonance-imaging-predicts-histological-grade-of-hepatocellular-carcinoma
#3
Hong-Fei Tong, Hong-Bo Liang, Zhi-Kang Mo, Tian-Pei Guan, Jian Yang, Chi-Hua Fang
OBJECTIVE: To confirm the histological grade of hepatocellular carcinoma (HCC) by gadoxetic acid-enhanced MRI. METHODS: Ninety-five HCC patients underwent gadoxetic acid-enhanced MRI before surgical intervention. The correlations among the signal absolute enhancement, contrast enhancement ratio (CER) and tumor histological grade were analyzed. RESULTS: The correlation between CER of tumor-to-liver and the grades of tumor differentiation is the most significant negative...
January 11, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28133933/the-possibility-of-radiotherapy-as-downstaging-to-living-donor-liver-transplantation-for-hepatocellular-carcinoma-with-portal-vein-tumor-thrombus
#4
J Y Choi, J I Yu, H C Park, C H D Kwon, J M Kim, J-W Joh, G S Choi, J B Park, S J Kim, S H Lee, W-T Cho, K W Lee, B-G Na, D K Oh, N R Lee, C W Cho, S Lee, S-K Lee
: Hepatocellular carcinoma (HCC) with portal vein tumor thrombosis (PVTT) are difficult to manage with very poor survival and due to universal recurrence after liver transplantation, they have been excluded from indication. Conformer radiation therapy (RT) has been shown to be effective in the treatment of HCC but only few trials have been reported as bridge to liver transplantation (LT) in HCC with PVTT. The purpose of our study was to evaluate the possibility of applying living donor liver transplantation (LDLT) following successful downstaging using RT in advanced HCC with PVTT...
January 30, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28133165/-simultaneous-laparoscopic-resection-of-gastric-cancer-and-hepatocellular-carcinoma
#5
Takashi Ajiki, Junichiro Yamauchi, Kento Miyazaki, Sho Yasuta, Shota Fujita, Tomoya Ikeda, Mamoru Sato, Ataru Satoh, Keiichi Shirasaki, Shin Kobayashi, Katsuo Tsuchihara, Noriko Kondo, Shuichi Ishiyama
A report of simultaneous laparoscopic resection for a patient with synchronous gastric cancer and hepatocellular carcinoma (HCC)is presented.A 76-year-old man was referred to our hospital for gastric cancer located in the antrum.In the preoperative examination, enhanced CT and MRI revealed a liver tumor located at S2 that had high contrast enhancement in the arterial phase but that was not washed out in the delayed phase.An early HCC was suspected, and simultaneous laparoscopic distal gastrectomy and partial resection of the liver was performed...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28107094/dynamic-volume-assessment-of-hepatocellular-carcinoma-in-rat-livers-using-a-clinical-3t-mri-and-novel-segmentation
#6
Lorenzo A Orci, Graziano Oldani, Stephanie Lacotte, Florence Slits, Iris Friedli, Wolfgang Wirth, Christian Toso, Jean-Paul Vallée, Lindsey A Crowe
PURPOSE: In vivo liver cancer research commonly uses rodent models. One of the limitations of such models is the lack of accurate and reproducible endpoints for a dynamic assessment of growing tumor nodules. The aim of this study was to validate a noninvasive, true volume segmentation method using two rat hepatocellular carcinoma (HCC) models, correlating magnetic resonance imaging (MRI) with histological volume measurement, and with blood levels of α-fetoprotein. MATERIALS AND METHODS: We used 3T clinical MRI to quantify tumor volume with follow-up over time...
January 20, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28105165/the-value-of-64-slice-spiral-ct-perfusion-imaging-in-the-treatment-of-liver-cancer-with-argon-helium-cryoablation
#7
Yinggang Lv, Yurong Jin, Qiaohuan Yan, Dingling Yuan, Yanling Wang, Xianping Li, Yanfeng Shen
We analyzed the effectiveness of using 64-slice spiral computed tomography (CT) and perfusion imaging to guide argon-helium cryoablation treatment of liver cancer. In total, 60 cases of advanced hepatocellular carcinoma before surgery treated with argon-helium cryoablation were inlcuded in the present study. Retrospective summary of the 60 cases of metaphase and advanced liver cancer were used as the control group. The control group were treated using cryoablation with argon-helium knife. We used enhanced scanning with 64-slice spiral CT to define the extent of their lesions and prepared a plan of percutaneous cryoablation for the treatment...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28103708/intravoxel-incoherent-motion-ivim-analysis-of-vertebral-bone-marrow-changes-after-radiation-exposure-from-diagnostic-imaging-and-interventional-procedures
#8
Min A Yoon, Suk-Joo Hong, Chang Hee Lee, Chang Ho Kang, Kyung-Sik Ahn, Baek Hyun Kim
Background High cumulative radiation dose in cancer patients warrants systemic examination of possible changes in bone marrow. Purpose To assess retrospectively changes in vertebral bone marrow diffusion and perfusion using intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) in hepatocellular carcinoma (HCC) patients after exposure to radiation from diagnostic imaging and interventional procedures. Material and Methods A total of 21 IVIM-DWI sets in 20 HCC patients, consisting of baseline and follow-up liver magnetic resonance imaging (MRI) with an interval less than 100 days, were reviewed after varying levels of radiation exposure from transarterial chemoembolization (TACE), multiphase liver CT, and abdominal radiography...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28093067/capza1-modulates-emt-by-regulating-actin-cytoskeleton-remodelling-in-hepatocellular-carcinoma
#9
Deng Huang, Li Cao, Shuguo Zheng
BACKGROUND: Epithelial-mesenchymal transition (EMT) elicits dramatic changes, including cytoskeleton remodelling as well as changes in gene expression and cellular phenotypes. During this process, actin filament assembly plays an important role in maintaining the morphology and movement of tumour cells. Capping protein, a protein complex referred to as CapZ, is an actin-binding complex that can regulate actin cytoskeleton remodelling. CAPZA1 is the α1 subunit of this complex, and we hypothesized that CAPZA1 regulates EMT through the regulation of actin filaments assembly, thus reducing the metastatic ability of hepatocellular carcinoma (HCC) cells...
January 16, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28078380/imaging-features-of-hepatic-sarcomatous-carcinoma-on-computed-tomography-and-gadoxetic-acid-enhanced-magnetic-resonance-imaging
#10
Kyo-Won Gu, Young Kon Kim, Ji Hye Min, Sang Yun Ha, Woo Kyoung Jeong
PURPOSE: To determine the imaging features of hepatic sarcomatous carcinoma including sarcomatous intrahepatic cholangiocarcinoma (S-ICC) and sarcomatous hepatocellular carcinoma (S-HCC) on computed tomography (CT) and gadoxetic acid-enhanced magnetic resonance imaging (MRI). MATERIALS AND METHODS: Twenty-four patients with pathologically confirmed S-ICCs (n = 13), S-HCCs (n = 7), sarcomatous carcinoma (n = 2), carcinosarcoma (n = 1), and sarcomatous combined HCC-CC (n = 1) (size range 2...
January 12, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28062263/the-natural-history-of-streptozotocin-stimulated-non-alcoholic-steatohepatitis-mice-followed-by-gd-eob-dtpa-enhanced-mri-comparison-with-simple-steatosis-mice
#11
Hiroyuki Akai, Shigeru Kiryu, Yasunori Ohta, Koichiro Yasaka, Yoshiyasu Nakano, Yusuke Inoue, Kuni Ohtomo
PURPOSE: To clarify the development of HCC, temporal change of steatosis and Gd-EOB-DTPA enhancement of non-alcoholic steatohepatitis (NASH) model mice by magnetic resonance imaging (MRI). MATERIALS AND METHODS: All animal experiments were approved by the institution's Animal Research Committee. MRI was performed on six NASH and six simple steatosis (SS) model mice every 2weeks from the ages of 8weeks to 16weeks. The sequential changes in the number and size of the focal liver lesions detected on Gd-EOB-DTPA-enhanced MRI were evaluated...
January 3, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28048247/we-fg-202-10-assessing-hepatocellular-carcinoma-hcc-response-to-sbrt-using-dce-mri
#12
Y Yuan, M Buckstein, M Chao, K Rosenzweig, Y Lo
PURPOSE: To investigate the feasibility of using DCE-MRI to assess treatment response of HCC to SBRT. METHODS: For seven liver HCC patients treated by photon SBRT with radiation dose ranging from 35 to 50 Gy in 5 fractions, T1-weighted DCE-MRI was performed before and at 1-3 months after the treatment. Each study included one pre-contrast and five post Gd-EOB-DTPA-enhanced imaging series. The target tumor and the liver were manually outlined on the arterial phase images...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046606/tu-ab-bra-01-abdominal-synthetic-ct-generation-in-support-of-liver-sbrt-dose-calculation
#13
J S Bredfeldt, L Liu, M Feng, Y Cao, J Balter
PURPOSE: To demonstrate and validate a technique for generating MRI-derived synthetic CT volumes (MRCTs) in support of adaptive liver SBRT. METHODS: Under IRB approval, ten hepatocellular carcinoma patients were scanned using a single MR sequence (T1 Dixon-VIBE), yielding inherently-registered water, fat, and T1-weighted images. Air-containing voxels were identified by intensity thresholding. The envelope of the anterior vertebral bodies was segmented from the fat image by fitting a shape model to vertebral body candidate voxels, then using level sets to expand the contour outward...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28028930/an-update-on-cancer-risk-and-surveillance-in-primary-sclerosing-cholangitis
#14
REVIEW
Jennifer L Horsley-Silva, Eduardo A Rodriguez, Diana L Franco, Keith D Lindor
Malignancy represents substantial morbidity and mortality in patients with primary sclerosing cholangitis (PSC). This subset of patients has been proven to be at increased risk for developing cholangiocarcinoma, gallbladder carcinoma and colorectal cancer in those with overlapping inflammatory bowel disease. Herein, we review the prevalence of these malignancies and recommend screening tools and current knowledge to reduce the disease burden in this population. Cholangiocarcinoma is the most dominant malignancy affecting PSC patients, with a lifetime risk ranging from 5% to 20%...
December 27, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28027763/increased-interreader-agreement-in-diagnosis-of-hepatocellular-carcinoma-using-an-adapted-li-rads-algorithm
#15
Anton S Becker, Borna K Barth, Paulo H Marquez, Olivio F Donati, Erika J Ulbrich, Christoph Karlo, Cäcilia S Reiner, Michael A Fischer
PURPOSE: To evaluate a simplified Liver Imaging Reporting and Data System (LI-RADS) algorithm to improve interreader agreement while maintaining diagnostic performance for HCC. MATERIALS AND METHODS: MRI scans of 84 cirrhotic patients with 104 distinct liver observations were retrospectively selected to equivocally match each of the LI-RADS grades (LR1-5) using histopathology and imaging follow up as standard of reference. Four independent radiologists categorized all observations as benign (LR1-2) or potentially malignant (LR3-5) and determined LI-RADS based imaging features including observation size, arterial phase hyperenhancement, washout, capsule appearance and threshold growth for LR3-5 observations and timed their readouts...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28026208/mri-of-small-hepatocellular-carcinoma-typical-features-are-less-frequent-below-a-size-cutoff-of-1-5-cm
#16
Moon Hyung Choi, Joon-Il Choi, Young Joon Lee, Michael Yong Park, Sung Eun Rha, Chandana Lall
OBJECTIVE: The purposes of this study were to analyze MRI features of small hepatocellular carcinomas (HCCs) on the basis of size and to evaluate the difference in frequency of typical radiologic hallmarks of HCC (arterial enhancement and washout) according to the tumor size. MATERIALS AND METHODS: Enrolled were 86 patients with 110 HCCs 3 cm or smaller who underwent surgical resection or transplantation. Two radiologists reviewed gadoxetic acid-enhanced MRI features for signal intensity of T2-weighted and T1-weighted imaging, diffusion restriction, presence of arterial enhancement, washout on portal and transitional phases, and signal intensity on the hepatobiliary phase...
March 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28003720/role-of-diffusion-weighted-imaging-dwi-for-hepatocellular-carcinoma-hcc-detection-and-its-grading-on-3t-mri-a-prospective-study
#17
Shiva Shankar, Naveen Kalra, Anmol Bhatia, Radhika Srinivasan, Paramjeet Singh, Radha K Dhiman, Niranjan Khandelwal, Yogesh Chawla
BACKGROUND: Limited studies have evaluated the role of diffusion weighted imaging (DWI) and apparent diffusion coefficient (ADC) for histologically grading the hepatocellular carcinoma (HCC). OBJECTIVE: To compare the efficacy of DWI with dynamic contrast enhanced magnetic resonance (DCEMR) in detection of HCC in cirrhosis, and to evaluate whether DWI can be used instead of DCEMR. METHODS: 20 patients of either sex with cirrhosis and suspected of having HCC on screening USG were included in this prospective study approved by the Institutional Ethics Committee...
December 2016: Journal of Clinical and Experimental Hepatology
https://www.readbyqxmd.com/read/28002336/the-utility-of-gadoxetic-acid-enhanced-magnetic-resonance-imaging-in-the-surveillance-for-postoperative-recurrence-of-hepatocellular-carcinoma
#18
Jung Hee Kim, Yang Won Min, Geum-Youn Gwak, Yong Han Paik, Moon Seok Choi, Joon Hyoek Lee, Kwang Cheol Koh, Seung Woon Paik
This study aimed to investigate the utility of gadoxetic acid-enhanced magnetic resonance imaging (Gd-MRI) in surveillance for recurrent hepatocellular carcinoma (HCC) after hepatectomy.This retrospective study analyzed 147 patients who underwent surveillance with alternating multidetector computed tomography (MDCT) and Gd-MRI after hepatectomy for HCC. The patients were followed-up every 3 months during the first 2 years, and every 6 months thereafter. At each visit, MDCT was performed but once a year (every 12 months), Gd-MRI was performed instead of MDCT...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27993534/assessment-of-the-link-between-quantitative-biexponential-diffusion-weighted-imaging-and-contrast-enhanced-mri-in-the-liver
#19
Hildebrand Dijkstra, Matthijs Oudkerk, Peter Kappert, Paul E Sijens
PURPOSE: To investigate if intravoxel incoherent motion (IVIM) modeled diffusion-weighted imaging (DWI) can be linked to contrast-enhanced (CE-)MRI in liver parenchyma and liver lesions. METHODS: Twenty-five patients underwent IVIM-DWI followed by multiphase CE-MRI using Gd-EOB-DTPA (n=20) or Gd-DOTA (n=5) concluded with IVIM-DWI. Diffusion (Dslow), microperfusion (Dfast), its fraction (ffast), wash-in-rate (Rearly) and late-enhancement-rate (Rlate) of Gd-EOB-DTPA were calculated voxel-wise for the liver...
December 18, 2016: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/27987537/comparison-of-hepatic-mdct-mri-and-dsa-to-explant-pathology-for-the-detection-and-treatment-planning-of-hepatocellular-carcinoma
#20
Lauren M Ladd, Temel Tirkes, Mark Tann, David M Agarwal, Matthew S Johnson, Bilal Tahir, Kumaresan Sandrasegaran
BACKGROUND/AIMS: The diagnosis and treatment plan for hepatocellular carcinoma (HCC) can be made from radiologic imaging. However, lesion detection may vary depending on the imaging modality. This study aims to evaluate the sensitivities of hepatic multidetector computed tomography (MDCT), magnetic resonance imaging (MRI), and digital subtraction angiography (DSA) in the detection of HCC and the consequent management impact on potential liver transplant patients. METHODS: One hundred and sixteen HCC lesions were analyzed in 41 patients who received an orthotopic liver transplant (OLT)...
December 2016: Clinical and Molecular Hepatology
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