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Hepatocellular carcinoma, imaging

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https://www.readbyqxmd.com/read/28937853/assessment-of-microvascular-invasion-of-hepatocellular-carcinoma-with-diffusion-kurtosis-imaging
#1
Wen-Tao Wang, Li Yang, Zhao-Xia Yang, Xin-Xing Hu, Ying Ding, Xu Yan, Cai-Xia Fu, Robert Grimm, Meng-Su Zeng, Sheng-Xiang Rao
Purpose To evaluate the potential role of diffusion kurtosis imaging and conventional magnetic resonance (MR) imaging findings including standard monoexponential model of diffusion-weighted imaging and morphologic features for preoperative prediction of microvascular invasion (MVI) of hepatocellular carcinoma (HCC). Materials and Methods Institutional review board approval and written informed consent were obtained. Between September 2015 and November 2016, 84 patients (median age, 54 years; range, 29-79 years) with 92 histopathologically confirmed HCCs (40 MVI-positive lesions and 52 MVI-negative lesions) were analyzed...
September 22, 2017: Radiology
https://www.readbyqxmd.com/read/28936550/feasibility-and-outcomes-of-percutaneous-thermal-ablation-of-hepatocellular-carcinoma-in-a-transplanted-allograft
#2
Brian T Welch, J J Schmitz, A N Kurup, T D Atwell, M R Callstrom, G Frey, R Paz-Fumagalli, A Allen, K Watt, J Heimbach, G D Schmit
PURPOSE: To examine the safety, feasibility, and oncologic control following percutaneous image-guided thermal ablation of hepatocellular carcinoma (HCC) in a transplanted allograft. MATERIALS AND METHODS: Retrospective review was performed to identify patients who underwent liver transplantation for HCC and subsequently underwent percutaneous hepatic thermal ablation for recurrent HCC within the allograft between January 1st, 2000-September 1st, 2016. Eleven patients with hepatic allograft HCC underwent twelve percutaneous thermal ablation procedures to treat 16 lesions...
September 21, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28936543/us-li-rads-ultrasound-liver-imaging-reporting-and-data-system-for-screening-and-surveillance-of-hepatocellular-carcinoma
#3
Tara A Morgan, Katherine E Maturen, Nirvikar Dahiya, Maryellen R M Sun, Aya Kamaya
Ultrasound is the most widely used imaging tool for hepatocellular carcinoma (HCC) screening and surveillance. Until now, this method has lacked standardized guidelines for interpretation, reporting, and management recommendations [1-5]. To address this need, the American College of Radiology (ACR) has developed the Ultrasound Liver Imaging Reporting and Data System (US LI-RADS) algorithm. The proposed algorithm has two components: detection scores and visualization scores. The detection score guides management and has three categories: US-1 Negative, US-2 Subthreshold, and US-3 Positive...
September 21, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28936404/-18-f-fdg-pet-for-assessing-biological-viability-and-prognosis-in-liver-transplant-patients-with-hepatocellular-carcinoma
#4
REVIEW
Arno Kornberg, Martina Schernhammer, Helmut Friess
Liver transplantation (LT) has become standard of care in patients with non-resectable early stage hepatocellular carcinoma (HCC) in liver cirrhosis. Currently, patient selection for LT is strictly based on tumor size and number, provided by the Milan criteria. This may, however, exclude patients with advanced tumor load but favourable biology from a possibly curative treatment option. It became clear in recent years that biological tumor viability rather than tumor macromorphology determines posttransplant outcome...
September 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28935453/intraoperative-real-time-tissue-elastography-during-laparoscopic-hepatectomy
#5
Yuta Kobayashi, Kiyohiko Omichi, Yoshikuni Kawaguchi, Junichi Arita, Nobuhisa Akamatsu, Junichi Kaneko, Yoshihiro Sakamoto, Kiyoshi Hasegawa, Norihiro Kokudo
BACKGROUND: Real-time tissue elastography during open hepatectomy facilitates the differential diagnosis of liver tumors by providing information on elasticity. This study investigated the utility of intraoperative real-time tissue elastography (IORTE) during laparoscopic hepatectomy (LH). METHODS: Between 2012 and 2014, IORTE was performed during LH for 21 hepatocellular carcinomas (HCCs), 16 adenocarcinomas and 5 other tumors in 32 patients. The elasticity images were classified into six categories according to the modified criteria on the elasticity type of liver tumors, in which type 1 tumors show more strain than the surrounding liver and type 6 tumors no strain...
September 18, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28932768/hepatic-adenomatosis-in-liver-cirrhosis
#6
Sonja Gordic, Swan N Thung, Sasan Roayaie, Mathilde Wagner, Bachir Taouli
Hepatocellular adenoma (HCA) is a benign liver tumor most frequently occurring in women using oral contraception. HCA develops in normal or nearly normal livers and is extremely rare in cirrhosis. The authors present magnetic resonance imaging and histopathologic findings in a 57-year-old man with liver cirrhosis and hepatic adenomatosis. As the differentiation between HCA and hepatocellular carcinoma (HCC) can be difficult with imaging, we would like to highlight the importance of ancillary findings such as the presence of iron on MRI, which can be observed in HCA...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28929364/anthropomorphic-liver-phantom-with-flow-for-multimodal-image-guided-liver-therapy-research-and-training
#7
Anna Rethy, Jørn Ove Sæternes, Jostein Halgunset, Ronald Mårvik, Erlend F Hofstad, Juan A Sánchez-Margallo, Thomas Langø
PURPOSE: The objective of this study was to develop a multimodal, permanent liver phantom displaying functional vasculature and common pathologies, for teaching, training and equipment development in laparoscopic ultrasound and navigation. METHODS: Molten wax was injected simultaneously into the portal and hepatic veins of a human liver. Upon solidification of the wax, the surrounding liver tissue was dissolved, leaving a cast of the vessels. A connection was established between the two vascular trees by manually manipulating the wax...
September 19, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28929197/venous-invasion-by-hepatic-tumors-imaging-appearance-and-implications-for-management
#8
REVIEW
Scott M Thompson, Michael L Wells, James C Andrews, Eric C Ehman, Christine O Menias, Christopher L Hallemeier, Lewis R Roberts, Sudhakar K Venkatesh
Venous invasion by hepatic tumors most commonly occurs with hepatocellular carcinoma and is associated with worse patient prognosis. Imaging plays an important role in the diagnosis of tumor thrombus in the liver. Moreover, differentiating between bland and tumor thrombus in the liver has important diagnostic, staging, therapeutic, and prognostic implications and may require a multimodal imaging approach including ultrasound, computed tomography, and/or magnetic resonance imaging. Treatment of hepatic malignancies with associated tumor thrombus is dependent on tumor type, disease extent within the liver, liver hemodynamics, and underlying liver function...
September 19, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28926899/-the-quantitative-analysis-of-mr-dynamic-contrast-enhangced-imaging-on-efficacy-and-prognosis-of-transcatheter-arterial-chemoembolization-on-hepatocellular-carcinoma
#9
X H Ma, S Wang, X M Zhao, H Ouyang, M Wang, Y J Zhu, Z Zhu, C W Zhou
Objective: To investigate the prognostic value of quantitative parameters of dynamic contrast-enhangced MR (DCE-MR) on short-term efficacy of transcatheter arterial chemoembolization (TACE) on hepatocellular carcinoma(HCC). Methods: 79 patients with HCC underwent non-enhanced MR imaging and DCE on a 3.0T MR scanner before and one month after TACE. The quantitative parameters were measured on the maximal tumor region, including maximal tumor diameter(MTD), ADC, K(trans,) K(ep) and V(e) value before and after TACE...
September 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28922441/evaluation-of-2d-shear-wave-elastography-for-characterisation-of-focal-liver-lesions
#10
Ludmila Gerber, Daniel Fitting, Kajana Srikantharajah, Nina Weiler, Georgia Kyriakidou, Joerg Bojunga, Falko Schulze, Dimitra Bon, Stefan Zeuzem, Mireen Friedrich-Rust
BACKGROUND AND AIM: This is a prospective study for evaluation of 2D-shear wave elastography (2D-SWE) for characterisation and differentiation of benign und malignant focal liver lesions (FLLs). METHODS: The patients referred to our ultrasound unit were prospectively included. B-mode ultrasound and 2D-SWE (Aixplorer® France) were performed for one FLL in each patient. Liver histology and/or contrast-enhanced imaging were used as a reference method. RESULTS: 140 patients with FLL were included...
September 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28920172/hepatocellular-carcinoma-screening-utilising-serum-alpha-fetoprotein-measurement-and-abdominal-ultrasound-is-more-effective-than-ultrasound-alone-in-patients-with-non-viral-cirrhosis
#11
Thomas Worland, Benjamin Harrison, Leighton Delmenico, Damian Dowling
PURPOSE: This study is aimed to determine the performance of alpha-fetoprotein (AFP) as part of hepatocellular carcinoma (HCC) screening in a non-viral cirrhosis population. METHODS: A retrospective audit was conducted of patients with non-viral cirrhosis over a 13 year period managed at a single centre. All patients were investigated routinely for evidence of viral hepatitis; patients with positive results were excluded from analysis. Cirrhosis was defined on basis of clinical, biochemical, and radiological investigations and examinations...
September 17, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28919777/synaptotagmin-7-is-overexpressed-in-hepatocellular-carcinoma-and-regulates-hepatocellular-carcinoma-cell-proliferation-via-chk1-p53-signaling
#12
Hao Jin, Geliang Xu, Qiang Zhang, Qing Pang, Meifang Fang
BACKGROUND: Synaptotagmin-7 (Syt-7) is a member of the synaptotagmin (Syt) family, which plays an important role in many physiological and pathological processes. However, to the best of our knowledge, there is no study describing its function in tumors, particularly in hepatocellular carcinoma (HCC). Therefore, in this study, we examined the role of Syt-7 in HCC and attempted to elucidate its underlying mechanism. MATERIALS AND METHODS: We examined the expression levels of Syt-7 in HCC cell lines and normal hepatocytes by real-time quantitative polymerase chain reaction analysis...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28917249/challenges-in-imaging-assessment-following-liver-stereotactic-body-radiotherapy-pitfalls-to-avoid-in-clinical-practice
#13
Connie Yip, Gary J R Cook, Kasia Owczarczyk, Vicky Goh
Stereotactic body radiotherapy (SBRT) is increasingly used in the management of unresectable liver metastases and hepatocellular carcinoma (HCC) as it allows delivery of high-dose conformal radiotherapy with limited toxicities. However, it may be difficult to differentiate viable tumour from radiotherapy-related changes after SBRT. The imaging changes observed after SBRT may also differ from those observed following conventionally fractionated radiotherapy. Hence, we aim to review the imaging changes that occur within the tumour and adjacent normal liver after SBRT which may help to identify local relapse in clinical practice...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28917216/mass-forming-intrahepatic-cholangiocarcinoma-with-portal-vein-tumor-thrombus-and-bile-duct-tumor-thrombus-a-case-report
#14
Kentaro Iwaki, Toshimi Kaido, Gen Yamamoto, Naoko Kamo, Shintaro Yagi, Kojiro Taura, Shinji Uemoto
INTRODUCTION: We report the first case of mass-forming intrahepatic cholangiocarcinoma (ICC) with portal vein tumor thrombus (PVTT) and bile duct tumor thrombus (BDTT), where the extrahepatic bile duct was preserved with thrombectomy. PRESENTATION OF CASE: A 70-year-old male. Magnetic resonance imaging (MRI) showed the tumor extending from the hepatic hilum to the left hepatic duct with complete obstruction of the left hepatic duct and a defect at the left portal vein...
September 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28915639/heptamethine-carbocyanine-dz-1-dye-for-near-infrared-fluorescence-imaging-of-hepatocellular-carcinoma
#15
Jiaze An, Ningning Zhao, Caiqin Zhang, Yong Zhao, Dengxu Tan, Ya Zhao, Bing Bai, Hai Zhang, Boyang Jason Wu, Changhong Shi
Near-infrared fluorescence (NIRF) dyes have recently emerged as promising tools for non-invasive imaging of different types of cancers. Here, we explored the potential utility of a NIRF DZ-1 dye, with dual imaging and tumour targeting functions, in hepatocellular carcinoma (HCC). We showed the preferential uptake of DZ-1 by HCC cells in vitro and in derived subcutaneous/orthotopic tumour xenografts, accompanied by a minimal effect on normal cells. DZ-1 simplified tumour growth profiling as well, since we were able to correlate NIRF signals with tumour volume and/or tumour-emitting luminescence in mice...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914714/radiologically-undetected-hepatocellular-carcinoma-in-patients-undergoing-liver-transplantation-an-immunohistochemical-correlation-with-li-rads-score
#16
Wei Xiong, Gregory Cheeney, Sooah Kim, Violetta Kolesnikova, Brooke Henninger, Jacob Alexander, Paul E Swanson, Melissa P Upton, Camtu D Truong, Matthew M Yeh
Orthotopic liver transplantation is the best option for patients with carefully selected unresectable disease because of underlying liver dysfunction. The 5-year survival rate after orthotopic liver transplantation for early detected hepatocellular carcinoma (HCC) is high, and a similar or even higher rate is reported in those with radiologically undetected HCC. This study evaluated and compared the histologic features of pretransplant radiologically undetected (14 patients, 25 tumors) versus detected (36 patients, 45 tumors) HCCs...
September 13, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28911220/contrast-enhanced-ultrasound-ceus-liver-imaging-reporting-and-data-system-li-rads-2017-a-review-of-important-differences-compared-to-the-ct-mri-system
#17
Tae Kyoung Kim, Seung Yeon Noh, Stephanie R Wilson, Yuko Kono, Fabio Piscaglia, Hyun-Jung Jang, Andrej Lyshchik, Christoph F Dietrich, Juergen K Willmann, Alexander Vezeridis, Claude B Sirlin
Medical imaging plays an important role in the diagnosis and management of hepatocellular carcinoma (HCC). The Liver Imaging Reporting and Data System (LI-RADS) was initially created to standardize the reporting and data collection of CT and MR imaging for patients at risk for HCC. As contrast-enhanced ultrasound (CEUS) has been widely used in clinical practice, it has recently been added to the LI-RADS. While CEUS LI-RADS shares fundamental concepts with CT/MRI LI-RADS, there are key differences between the modalities reflecting dissimilarities in the underlying methods of image acquisition and types of contrast material...
September 15, 2017: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/28905413/simultaneous-acquisition-sequence-for-improved-hepatic-pharmacokinetics-quantification-accuracy-saha-for-dynamic-contrast-enhanced-mri-of-liver
#18
Jia Ning, Yongliang Sun, Sheng Xie, Bida Zhang, Feng Huang, Peter Koken, Jouke Smink, Chun Yuan, Huijun Chen
PURPOSE: To propose a simultaneous acquisition sequence for improved hepatic pharmacokinetics quantification accuracy (SAHA) method for liver dynamic contrast-enhanced MRI. METHODS: The proposed SAHA simultaneously acquired high temporal-resolution 2D images for vascular input function extraction using Cartesian sampling and 3D large-coverage high spatial-resolution liver dynamic contrast-enhanced images using golden angle stack-of-stars acquisition in an interleaved way...
September 14, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28903414/micro-hccs-in-rats-with-liver-cirrhosis-paradoxical-targeting-effects-with-vascular-disrupting-agent-ca4p
#19
Yewei Liu, Ting Yin, Frederik De Keyzer, Yuanbo Feng, Feng Chen, Jianjun Liu, Shaoli Song, Jie Yu, Vincent Vandecaveye, Johan Swinnen, Guy Bormans, Uwe Himmelreich, Raymond Oyen, Jian Zhang, Gang Huang, Yicheng Ni
We sought to investigate anticancer efficacy of a vascular disrupting agent (VDA) combretastatin A-4 phosphate (CA4P) in relation to tumor size among hepatocellular carcinomas (HCCs) in rats using magnetic resonance imaging (MRI) and postmortem techniques. Nineteen rats with 43 chemically-induced HCCs of 2.8-20.9 mm in size on liver cirrhosis received CA4P intravenously at 10 mg/kg. Tumor-diameter was measured by T2-weighted imaging (T2WI) to define microcancers (< 5 mm) versus larger HCCs. Vascular responses and tissue necrosis were detected by diffusion-weighted imaging (DWI), contrast-enhanced T1-weighted imaging (CE-T1WI) and dynamic contrast enhanced (DCE-) MRI, which were validated by microangiography and histopathology...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28901442/the-uptake-exploration-of-68ga-labeled-ngr-in-well-differentiated-hepatocellular-carcinoma-xenografts-indication-for-the-new-clinical-translational-of-a-tracer-based-on-ngr
#20
Yongheng Gao, Zhengjie Wang, Xiaowei Ma, Wenhui Ma, Mingxuan Zhao, Tianming Fu, Guoquan Li, Shengjun Wang, Zhe Wang, Weidong Yang, Fei Kang, Jing Wang
18F-FDG has low uptake and poor diagnostic efficiency in hepatocellular carcinoma (HCC), particularly in well-differentiated HCC. The NGR peptide selectively targets CD13, which is overexpressed in many types of tumor cells as well as neovasculature cells. In the present study, we aimed to evaluate the feasibility of utilizing 68Ga-NGR to image CD13-positive well-differentiated HCC xenografts. The in vitro cellular uptake, in vivo micro-PET/CT imaging and biodistribution studies of 68Ga-NGR and 18F-FDG were quantitatively compared in SMMC-7721-based well‑differentiated HCC xenografts...
August 31, 2017: Oncology Reports
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