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Hepatocellular carcinoma, MRI

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https://www.readbyqxmd.com/read/28306547/synthetic-ct-for-mri-based-liver-stereotactic-body-radiotherapy-treatment-planning
#1
Jeremy S Bredfeldt, Lianli Liu, Mary Feng, Yue Cao, James M Balter
A technique for generating MRI-derived synthetic CT volumes (MRCTs) is demonstrated in support of adaptive liver stereotactic body radiation therapy (SBRT). Under IRB approval, 16 subjects with hepatocellular carcinoma were scanned using a single MR pulse sequence (T1 Dixon). Air-containing voxels were identified by intensity thresholding on T1-weighted, water and fat images. The envelope of the anterior vertebral bodies was segmented from the fat image and fuzzy-C-means (FCM) was used to classify each non-air voxel as mid-density, lower-density, bone, or marrow in the abdomen, with only bone and marrow classified within the vertebral body envelope...
March 17, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28298731/magnetic-resonance-imaging-of-the-cirrhotic-liver-diagnosis-of-hepatocellular-carcinoma-and-evaluation-of-response-to-treatment-part-1
#2
REVIEW
Miguel Ramalho, António P Matos, Mamdoh AlObaidy, Fernanda Velloni, Ersan Altun, Richard C Semelka
Magnetic resonance imaging (MRI) is the modern gold standard for the noninvasive evaluation of the cirrhotic liver. The combination of arterial phase hyperenhancement and delayed wash-out allows a definitive diagnosis of hepatocellular carcinoma (HCC) in patients with liver cirrhosis or chronic liver disease, without the requirement for confirmatory biopsy. That pattern is highly specific and has been endorsed in Western and Asian diagnostic guidelines. However, the sensitivity of the combination is relatively low for small HCCs...
January 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28276105/adctotal-ratio-and-d-ratio-derived-from-intravoxel-incoherent-motion-early-after-tace-are-independent-predictors-for-survival-in-hepatocellular-carcinoma
#3
Lifang Wu, Pengju Xu, Shengxiang Rao, Li Yang, Caizhong Chen, Hao Liu, Caixia Fu, Mengsu Zeng
PURPOSE: To explore the threshold of intravoxel incoherent motion (IVIM) parameters, apparent diffusion coefficient [ADCtotal and ADC(0,500) ] ratios 24-48 hours after transarterial chemoembolization (TACE) to assess early response in patients with unresectable hepatocellular carcinoma (HCC) and to compare the association between diffusion-weighted imaging with the intravoxel incoherent motion (IVIM-DWI) and mRECIST with survival. MATERIALS AND METHODS: Institutional Review Board approval and informed consent were obtained for this prospective study...
March 9, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28275579/factors-influencing-surveillance-for-hepatocellular-carcinoma-in-patients-with-liver-cirrhosis
#4
Hager A Ahmed Mohammed, Ju Dong Yang, Nasra H Giama, Jonggi Choi, Hawa M Ali, Kristin C Mara, William S Harmsen, Russell H Wiesner, Michael D Leise, Terry M Therneau, Lewis R Roberts
OBJECTIVE: Hepatocellular carcinoma (HCC) is the second most common cause of cancer-related mortality worldwide, and a rising cause of cancer mortality in the U.S. Liver cirrhosis is the major risk factor for HCC. Surveillance of persons with cirrhosis facilitates early detection and improves outcomes. We assessed the surveillance rate for HCC within a major academic health system and identified factors influencing surveillance. PATIENTS AND METHODS: We examined the surveillance rate for HCC using liver ultrasound, CT, or MRI, and factors influencing surveillance in a cohort of 369 Minnesota residents with cirrhosis seen at the Mayo Clinic between 2007 and 2009...
February 2017: Liver Cancer
https://www.readbyqxmd.com/read/28271531/value-of-contrast-enhanced-sonography-of-small-hepatocellular-carcinoma-with-sonazoid-prior-to-radiofrequency-ablation
#5
So Jung Lee, Hyung Jin Won, Kyung Won Kim, Yong Moon Shin, Pyo Nyun Kim
BACKGROUND: We aimed to determine the value of contrast-enhanced sonography (CEUS) with Sonazoid prior to percutaneous radiofrequency ablation (RFA) of small (<3 cm) hepatocellular carcinoma (HCC). METHODS: This prospective study was approved by our institutional review board and informed consent was obtained. The following criteria were used for study enrollment: (1) cirrhotic patients with HCCs found by contrast-enhanced CT or Gd-EOB-DTPA-enhanced MRI; (2) a single HCC <3 cm in longest diameter or multinodular HCCs (<3) with each tumor <3 cm in longest diameter; and (3) indeterminate identification of the index tumor from the surrounding cirrhosis-related pseudolesions on conventional US...
March 8, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28267535/the-value-of-paradoxical-uptake-of-hepatocellular-carcinoma-on-the-hepatobiliary-phase-of-gadoxetic-acid-enhanced-liver-magnetic-resonance-imaging-for-the-prediction-of-lipiodol-uptake-after-transcatheter-arterial-chemoembolization
#6
Jeong Woo Kim, Chang Hee Lee, Yang Shin Park, Tae Seok Seo, Myung Gyu Song, Ji Hoon Kim, Kyeong Ah Kim, Cheol Min Park
PURPOSE: To compare the response to transcatheter arterial chemoembolization (TACE) between hepatocellular carcinoma (HCC) with paradoxical uptake on the hepatobiliary phase (HBP) (HCCpara) and HCC with defect on the HBP (HCCdef), and to identify some imaging features that can differentiate between two groups. MATERIALS AND METHODS: Ninety-three HCCs from 54 patients who underwent gadoxetic acid-enhanced liver magnetic resonance imaging (MRI) prior to TACE were included...
April 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28259177/imaging-of-hepatocellular-carcinoma-and-image-guided-therapies-how-we-do-it
#7
REVIEW
Jonathon Willatt, Julie A Ruma, Shadi F Azar, Nara L Dasika, F Syed
Treatment options for hepatocellular carcinoma have evolved over recent years. Interventional radiologists and surgeons can offer curative treatments for early stage tumours, and locoregional therapies can be provided resulting in longer survival times. Early diagnosis with screening ultrasound is the key. CT and MRI are used to characterize lesions and determine the extent of tumour burden. Imaging techniques are discussed in this article as the correct imaging protocols are essential to optimise successful detection and characterisation...
March 4, 2017: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/28255371/non-invasive-imaging-techniques-in-assessing-non-alcoholic-fatty-liver-disease-a-current-status-of-available-methods
#8
REVIEW
A M Lăpădat, I R Jianu, B S Ungureanu, L M Florescu, D I Gheonea, S Sovaila, I A Gheonea
Non-alcoholic fatty liver disease (NAFLD) is an ailment affecting and increasing a number of people worldwide diagnosed via non-invasive imaging techniques, at a time when a minimum harm caused by medical procedures is rightfully emphasized, more sought after, than ever before. Liver steatosis should not be taken lightly even if its evolution is largely benign as it has the potential to develop into non-alcoholic steatohepatitis (NASH) or even more concerning, hepatic cirrhosis, and hepatocellular carcinoma (HCC)...
January 2017: Journal of Medicine and Life
https://www.readbyqxmd.com/read/28241076/characterisation-of-liver-fat-in-the-uk-biobank-cohort
#9
Henry R Wilman, Matt Kelly, Steve Garratt, Paul M Matthews, Matteo Milanesi, Amy Herlihy, Micheal Gyngell, Stefan Neubauer, Jimmy D Bell, Rajarshi Banerjee, E Louise Thomas
Non-alcoholic fatty liver disease and the risk of progression to steatohepatitis, cirrhosis and hepatocellular carcinoma have been identified as major public health concerns. We have demonstrated the feasibility and potential value of measuring liver fat content by magnetic resonance imaging (MRI) in a large population in this study of 4,949 participants (aged 45-73 years) in the UK Biobank imaging enhancement. Despite requirements for only a single (≤3min) scan of each subject, liver fat was able to be measured as the MRI proton density fat fraction (PDFF) with an overall success rate of 96...
2017: PloS One
https://www.readbyqxmd.com/read/28238007/radiation-induced-liver-injury-after-3d-conformal-radiotherapy-for-hepatocellular-carcinoma-quantitative-assessment-using-gd-eob-dtpa-enhanced-mri
#10
Yoshiyuki Fukugawa, Tomohiro Namimoto, Ryo Toya, Tetsuo Saito, Hideaki Yuki, Tomohiko Matsuyama, Osamu Ikeda, Yasuyuki Yamashita, Natsuo Oya
Focal liver reaction (FLR) appears in the hepatobiliary-phase images of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging (Gd-EOB-DTPA-enhanced MRI) following radiotherapy (RT). We investigated the threshold dose (TD) for FLR development in 13 patients with hepatocellular carcinoma (HCC) who underwent three-dimensional conformal radiotherapy (3D-CRT) with 45 Gy in 15 fractions. FLR volumes (FLRVs) were calculated based on planning CT images by referring to fused hepatobiliary- phase images...
February 2017: Acta Medica Okayama
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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