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Hepatocellular carcinoma, MRI

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https://www.readbyqxmd.com/read/29774382/iodine-material-density-images-in-dual-energy-ct-quantification-of-contrast-uptake-and-washout-in-hcc
#1
Daniela Pfeiffer, Anushri Parakh, Manuel Patino, Avinash Kambadakone, Ernst J Rummeny, Dushyant V Sahani
PURPOSE: To determine the diagnostic potential of Material Density (MD) iodine images in dual-energy CT (DECT) for visualization and quantification of arterial phase hyperenhancement and washout in hepatocellular carcinomas compared to magnetic resonance imaging (MRI). MATERIALS AND METHODS: The study complied with HIPAA guidelines and was approved by the ethics committee of the institutional review board. Thirty-one patients (23 men, 8 women; age range, 36-87 years) with known or suspected Hepatocellular Carcinoma (HCC) were included...
May 17, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29771954/preoperative-prediction-of-microvascular-invasion-of-hepatocellular-carcinoma-with-ivim-diffusion-weighted-mr-imaging-and-gd-eob-dtpa-enhanced-mr-imaging
#2
Wei Zhao, Wenguang Liu, Huaping Liu, Xiaoping Yi, Jiale Hou, Yigang Pei, Hui Liu, Deyun Feng, Liyu Liu, Wenzheng Li
Microvascular invasion (MVI) is regarded as one of the independent risk factors for recurrence and poor prognosis of hepatocellular carcinoma (HCC). The presence of MVI in HCCs was evaluated on the basis of pathological reports of surgical specimens and was defined as tumor within a vascular space lined by endothelium that was visible only on microscopy. The aim of the study was to investigate the usefulness of intravoxel incoherent motion (IVIM) diffusion weighted (DW) magnetic resonance (MR) imaging in predicting MVI of HCC...
2018: PloS One
https://www.readbyqxmd.com/read/29758936/evaluation-of-integrated-color-coded-perfusion-analysis-for-contrast-enhanced-ultrasound-ceus-after-percutaneous-interventions-for-malignant-liver-lesions-first-results
#3
I Wiesinger, L P Beyer, N Zausig, N Verloh, P Wiggermann, C Stroszczynski, E M Jung
BACKGROUND:  With the rising number of percutaneous ablation therapies in malignant liver lesions there is a need of reliable diagnostics after the intervention to differentiate between reactive changes and tumor. PURPOSE: To assess the success of percutaneous ablation therapies for malignant liver lesions using CEUS with perfusion analysis. MATERIAL AND METHODS: Retrospective analysis of perfusion analysis for 67 patients with 94 malignant liver lesions, treated with ablation therapies...
2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29750794/apparent-diffusion-coefficient-of-hepatocellular-carcinoma-on-diffusion-weighted-imaging-histopathologic-tumor-grade-versus-arterial-vascularity-during-dynamic-magnetic-resonance-imaging
#4
In Kyung Park, Jeong-Sik Yu, Eun-Suk Cho, Joo Hee Kim, Jae-Joon Chung
OBJECTIVES: Apparent diffusion coefficient (ADC) has been suggested to reflect the tumor grades of hepatocellular carcinomas (HCCs); i.e., it can be used as a biomarker to predict the patients' prognosis. To verify its feasibility as a biomarker, the present study sought to determine how the ADC values of HCC are affected by a tumor's histopathologic grade and arterial vascularity. MATERIALS AND METHODS: From 131 consecutive patients, 141 surgically resected HCCs (16 well-differentiated [wd-HCCs], 83 moderately-differentiated [md-HCCs], and 42 poorly-differentiated HCCs [pd-HCCs]) were subjected to a comparison of the tumors' arterial vascularity (non-, slightly-, or markedly-hypervascular) determined on dynamic magnetic resonance imaging (MRI) and the ADC was measured retrospectively...
2018: PloS One
https://www.readbyqxmd.com/read/29737070/-diagnostic-performance-of-susceptibility-weighted-imaging-in-the-grading-of-hepatocellular-carcinoma
#5
Ting Duan, Jie Chen, Chun-Chao Xia, Bin Song
OBJECTIVE: To test the capability of intratumoral susceptibility signal intensity (ITSS) in the differentiation of hepatocellular carcinoma (HCC) grades. METHODS: Retrospective reviews of 53 patients with pathologically proven HCCs were performed. All patients underwent both conventional MRI and SWI examinations. The morphological score of ITSS and the number of ITSS per square centimeter were calculated,then compared among low-grade and high-grade HCCs. Spearman correlation coefficients were determined between the morphological scores of ITSS,the number of ITSS per square centimeter and HCC grades...
March 2018: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29737069/-predicting-histological-grade-of-hcc-in-rats-using-intravoxel-incoherent-motion-imaging
#6
Mou Li, Xing-Ju Zheng, Zi-Xing Huang, Bin Song
OBJECTIVE: To predict histological grade of hepatocellular carcinoma (HCC) in Wistar rats using intravoxel incoherent motion imaging (IVIM) with magnetic resonance imaging (MRI). METHODS: Liver lesions of HCC rat models induced by oral diethylnitrosamine (DEN) were scanned by IVIM to obtain apparent diffusion coefficient (ADC) and IVIM parameters,including true diffusion coefficient (D),pseudodiffusion coefficient (D*) and perfusion fraction (f). These HCC lesions were confirmed by Hematoxylin-Eosin (HE) stain and pathologically graded into low (grade Ⅰ+Ⅱ) and high (grade Ⅲ+Ⅳ) using the Edmondson-Steiner method...
March 2018: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29719484/a-case-of-well-differentiated-hepatocellular-carcinoma-identified-on-gallium-68-prostate-specific-membrane-antigen-positron-emission-tomography-computed-tomography
#7
Hian Liang Huang, Tracy Jie Zhen Loh, Pierce Kah Hoe Chow
Prostate-specific membrane antigen (PSMA) is a glycosylated type-II transmembrane protein highly expressed in certain tumor cells. To the best of our knowledge, this is the first case reported of an isolated well-differentiated hepatocellular carcinoma (HCC) strongly suspected on gallium-68 (68 Ga)-PSMA positron emission tomography/computed tomography (PET/CT), which was not well characterized both on magnetic resonance imaging (MRI) liver with Primovist as well as fluorine-18 (18 F)-choline PET/CT. Our patient had previous prostate cancer and previously was imaged using 18 F-choline PET/CT...
April 2018: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29708786/differentiation-between-hepatocellular-carcinoma-showing-hyperintensity-on-the-hepatobiliary-phase-of-gadoxetic-acid-enhanced-mri-and-focal-nodular-hyperplasia-by-ct-and-mri
#8
Azusa Kitao, Osamu Matsui, Norihide Yoneda, Ryuichi Kita, Kazuto Kozaka, Satoshi Kobayashi, Toshifumi Gabata
OBJECTIVE: The purpose of this study is to identify points useful in the imaging differentiation of hepatocellular carcinoma (HCC) showing hyperintensity on the hepatobiliary phase of gadoxetic acid-enhanced MRI and focal nodular hyperplasia (FNH) and FNH-like nodules. MATERIALS AND METHODS: We enrolled consecutive 51 pathologically diagnosed HCCs that were hyperintense on hepatobiliary phase imaging (47 patients, including 44 with cirrhosis) and 10 FNHs and eight FNH-like nodules (16 patients, including five with cirrhosis)...
April 30, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29708329/imaging-tiny-hepatic-tumor-xenografts-via-endoglin-targeted-paramagnetic-optical-nanoprobe
#9
Huihui Yan, Xihui Gao, Yunfei Zhang, Wenju Chang, Jianhui Li, Xinwei Li, Qin Du, Cong Li
Surgery is a mainstay for treating hepatocellular carcinoma (HCC). However, it is a great challenge for surgeons to identify HCC in its early developmental stage. The diagnostic sensitivity for tiny HCC with a diameter less than 1.0 cm is usually as low as 10-33% for computed tomography (CT) and 29-43% for magnetic resonance imaging (MRI). Although MRI is the preferred imaging modality for detecting HCC, with its unparalleled spatial resolution for soft tissue, the commercially available contrast agents, such as Gd3+ -DTPA, cannot accurately define HCC due to its short circulation lifetime and lack of tumor targeting specificity...
April 30, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29707770/the-first-study-on-therapeutic-efficacies-of-a-vascular-disrupting-agent-ca4p-among-primary-hepatocellular-carcinomas-with-a-full-spectrum-of-differentiation-and-vascularity-correlation-of-mri-microangiography-histopathology-in-rats
#10
Yewei Liu, Frederik De Keyzer, Yixing Wang, Fengna Wang, Yuanbo Feng, Feng Chen, Jie Yu, Jianjun Liu, Shaoli Song, Johan Swinnen, Guy Bormans, Raymond Oyen, Gang Huang, Yicheng Ni
To better inform the next clinical trials of vascular disrupting agent Combretastatin-A4-phosphate (CA4P) in patients with hepatic malignancies, this preclinical study aimed at evaluating CA4P therapeutic efficacy in rats with primary hepatocellular carcinomas (HCCs) of a full spectrum of differentiation and vascularity by magnetic resonance imaging (MRI), microangiography and histopathology. Ninety-six HCCs were raised in 25 rats by diethylnitrosamine gavage. Tumor growth was monitored by T2-/T1-weighted-MRI (T2WI, T1WI) using a 3...
April 29, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29703912/iron-iii-tannic-molecular-nanoparticles-enhance-autophagy-effect-and-t-1-mri-contrast-in-liver-cell-lines
#11
Krungchanuchat Saowalak, Thongtem Titipun, Thongtem Somchai, Pilapong Chalermchai
Herein, a new molecular nanoparticle based on iron(III)-tannic complexes (Fe-TA NPs) is presented. The Fe-TA NPs were simply obtained by mixing the precursors in a buffered solution at room temperature, and they exhibited good physicochemical properties with capability of inducing autophagy in both hepatocellular carcinoma cells (HepG2.2.15) and normal rat hepatocytes (AML12). The Fe-TA NPs were found to induce HepG2.2.15 cell death via autophagic cell death but have no effect on cell viability in AML12 cells...
April 27, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29702975/primary-functioning-hepatic-paraganglioma-mimicking-hepatocellular-carcinoma-a-case-report-and-literature-review
#12
Wei Liao, Ze-Yang Ding, Binhao Zhang, Lin Chen, Gan-Xun Li, Jing-Jing Wu, Bixiang Zhang, Xiao-Ping Chen, Peng Zhu
INTRODUCTION: Hepatic paraganglioma (HPGL) originates from the sympathetic nervous tissue in the liver, and is an extremely rare type of the sympathetic paragangliomas. Till now, only 11 HPGL cases have been reported. CASE PRESENTATION: A 49-year-old woman presented to our hospital with a lesion in the right lobe of the liver, which grew from 2 to 6 cm in 2 years. In addition, she had a 6-year history of diabetes. The patient was initially diagnosed as hepatocellular carcinoma and hepatectomy was performed...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29692186/outcome-of-indeterminate-liver-lesions-on-computed-tomography-in-patients-with-colorectal-cancer
#13
E Mohamed, A Adiamah, W K Dunn, Y Higashi, I C Cameron, D Gomez
Introduction The aim of this study was to determinate the outcome of indeterminate liver lesions on computed tomography (CT) in patients with a background history of colorectal cancer (CRC) and to identify clinicopathological variables associated with malignancy in these lesions. A secondary aim was to devise a management algorithm for such patients. Methods Patients referred to our institution with indeterminate liver lesions on CT with a background history of CRC between January 2012 and December 2014 were included in the study...
April 25, 2018: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29690933/li-rads-v2017-for-liver-nodules-how-we-read-and-report
#14
REVIEW
Wolfgang Schima, Jay Heiken
The Liver Imaging Reporting and Data System (LI-RADS) standardizes the interpretation and reporting of imaging examinations in patients at risk for hepatocellular carcinoma (HCC). For focal liver observations it assigns categories (LR-1 to 5, LR-M, LR-TIV), which reflect the relative probability of benignity or malignancy of the respective observation. The categories assigned are based on major and ancillary image features, which have been developed by the American College of Radiology (ACR) and validated in many studies...
April 24, 2018: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/29675659/interobserver-and-intermodality-agreement-of-standardized-algorithms-for-non-invasive-diagnosis-of-hepatocellular-carcinoma-in-high-risk-patients-ceus-li-rads-versus-mri-li-rads
#15
Barbara Schellhaas, Matthias Hammon, Deike Strobel, Lukas Pfeifer, Christian Kielisch, Ruediger S Goertz, Alexander Cavallaro, Rolf Janka, Markus F Neurath, Michael Uder, Hannes Seuss
OBJECTIVES: We compared the interobserver agreement for the recently introduced contrast-enhanced ultrasound (CEUS)-based algorithm CEUS-LI-RADS (Liver Imaging Reporting and Data System) versus the well-established magnetic resonance imaging (MRI)-LI-RADS for non-invasive diagnosis of hepatocellular carcinoma (HCC) in high-risk patients. METHODS: Focal liver lesions in 50 high-risk patients (mean age 66.2 ± 11.8 years; 39 male) were assessed retrospectively with CEUS and MRI...
April 19, 2018: European Radiology
https://www.readbyqxmd.com/read/29661994/baseline-apparent-diffusion-coefficient-as-a-predictor-of-response-to-liver-directed-therapies-in-hepatocellular-carcinoma
#16
Andrew Niekamp, Reham Abdel-Wahab, Joshua Kuban, Bruno C Odisio, Armeen Mahvash, Manal M Hassan, Aliya Qayyum, Ahmed Kaseb, Rahul A Sheth
Predicting outcomes in patients with hepatocellular carcinoma (HCC) who undergo locoregional therapies remains a substantial clinical challenge. The purpose of this study was to investigate pre-procedure diffusion weighted magnetic resonance imaging (DW-MRI) as an imaging biomarker for tumoral response to therapy for patients with HCC undergoing drug eluting embolic (DEE) chemoembolization and radioembolization. A retrospective review of HCC patients who underwent DEE chemoembolization or radioembolization was performed...
April 14, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29659392/pedunculated-hepatocellular-carcinoma-mimicking-right-adrenal-tumor-on-fdg-pet-ct
#17
Aisheng Dong, Xinping Zhong, Yang Wang
Pedunculated hepatocellular carcinoma is an unusual form of hepatocellular carcinoma protruding from the liver with or without a pedicle. We present a case of pedunculated hepatocellular carcinoma misdiagnosed as right adrenal tumor on MRI and FDG PET/CT. Intraoperative exploration revealed the mass was attached to the liver, but the right adrenal gland was intact. Laparoscopic biopsy revealed poorly differentiated hepatocellular carcinoma. This case indicates it may be difficult to diagnose pedunculated hepatocellular carcinoma because it is hard to define its origin on imaging...
April 13, 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29650849/-a-case-of-resected-reactive-lymphoid-hyperplasia-of-liver-suspected-of-hepatocellular-carcinoma
#18
Kei Nakamura, Akira Sougawa, Tomoyuki Nagata, Satoshi Mochizuki, Yuen Nakase, Shozo Kitai, Seishirou Inaba
A 64-year-old woman who had chronic type C viral hepatitis was referred with a liver tumor detected by magnetic resonance imaging(MRI). She had a history of rheumatoid arthritis which was treated by methotrexate. Ethoxybenzyl-MRI(EOBMRI) showed a low signal in the T1-weighted imaging, a high signal in the T2-weighted imaging and a low signal in the hepatobiliary phase. The tumor was 7 millimeters in diameter at S4, and exhibited enhancement in the arterial phase and wash out in the portal phase by contrast enhanced CT...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29629800/comparison-of-visualization-rates-of-li-rads-version-2014-major-features-with-iv-gadobenate-dimeglumine-or-gadoxetate-disodium-in-patients-at-risk-for-hepatocellular-carcinoma
#19
Brian C Allen, Lisa M Ho, Tracy A Jaffe, Chad M Miller, Maciej A Mazurowski, Mustafa R Bashir
OBJECTIVE: The purpose of this study is to compare visualization rates of the major features covered by Liver Imaging Reporting and Data System (LI-RADS) version 2014 in patients at risk for hepatocellular carcinoma using either gadobenate dimeglumine or gadoxetate disodium IV contrast agent. MATERIALS AND METHODS: This retrospective study included liver MRI examinations performed with either gadobenate dimeglumine or gadoxetate disodium contrast enhancement. Using age, sex, underlying liver disease, and presence of cirrhosis, patients were placed into matched cohorts...
April 9, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29626376/li-rads-2017-an-update
#20
REVIEW
Ania Z Kielar, Victoria Chernyak, Mustafa R Bashir, Richard K Do, Kathryn J Fowler, Donald G Mitchell, Milena Cerny, Khaled M Elsayes, Cynthia Santillan, Aya Kamaya, Yuko Kono, Claude B Sirlin, An Tang
The computed tomography / magnetic resonance imaging (CT/MRI) Liver Imaging Reporting & Data System (LI-RADS) is a standardized system for diagnostic imaging terminology, technique, interpretation, and reporting in patients with or at risk for developing hepatocellular carcinoma (HCC). Using diagnostic algorithms and tables, the system assigns to liver observations category codes reflecting the relative probability of HCC or other malignancies. This review article provides an overview of the 2017 version of CT/MRI LI-RADS with a focus on MRI...
April 6, 2018: Journal of Magnetic Resonance Imaging: JMRI
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