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Minami T, Sato M, Toyoda H, Yasuda S, Yamada T, Nakatsuka T, Enooku K, Nakagawa H, Fujinaga H, Izumiya M, Tanaka Y, Otsuka M, Ohki T, Arai M, Asaoka Y, Tanaka A, Yasuda K, Miura H, Ogata I, Kamoshida T, Inoue K, Nakagomi R, Akamatsu M, Mitsui H, Fujie H, Ogura K, Uchino K, Yoshida H, Hanajiri K, Wada T, Kurai K, Maekawa H, Kondo Y, Obi S, Teratani T, Masaki N, Nagashima K, Ishikawa T, Kato N, Yotsuyanagi H, Moriya K, Kumada T, Fujishiro M, Koike K, Tateishi R. Machine learning for individualized prediction of hepatocellular carcinoma development after the eradication of hepatitis C virus with antivirals. J Hepatol 2023; 79:S0168-8278(23)00424-5. [PMID: 37716372 DOI: 10.1016/j.jhep.2023.05.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 04/03/2023] [Accepted: 05/23/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND AND AIMS Accurate risk stratification for hepatocellular carcinoma (HCC) after achieving a sustained viral response (SVR) is necessary for optimal surveillance. We aimed to develop and validate a machine learning (ML) model to predict the risk of HCC after achieving an SVR in individual patients. METHODS In this multicenter cohort study, 1742 patients with chronic hepatitis C who achieved an SVR were enrolled. Five ML models were developed including DeepSurv, gradient boosting survival analysis, random survival forest (RSF), survival support vector machine, and a conventional Cox proportional hazard model. Model performance was evaluated using Harrel' c-index and was externally validated in an independent cohort (977 patients). RESULTS During the mean observation period of 5.4 years, 122 patients developed HCC (83 in the derivation cohort and 39 in the external validation cohort). The RSF model showed the best discrimination ability using seven parameters at the achievement of an SVR with a c-index of 0.839 in the external validation cohort and a high discriminative ability when the patients were categorized into three risk groups (P <0.001). Furthermore, this RSF model enabled the generation of an individualized predictive curve for HCC occurrence for each patient with an app available online. CONCLUSIONS We developed and externally validated an RSF model with good predictive performance for the risk of HCC after an SVR. The application of this novel model is available on the website. This model could provide the data to consider an effective surveillance method. Further studies are needed to make recommendations for surveillance policies tailored to the medical situation in each country. IMPACT AND IMPLICATIONS A novel prediction model for HCC occurrence in patients after hepatitis C virus eradication was developed using machine learning algorithms. This model, using seven commonly measured parameters, has been shown to have a good predictive ability for HCC development and could provide a personalized surveillance system.
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Affiliation(s)
- Tatsuya Minami
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Masaya Sato
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital
| | - Satoshi Yasuda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital
| | - Tomoharu Yamada
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Takuma Nakatsuka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Kenichiro Enooku
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Hayato Nakagawa
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Hidetaka Fujinaga
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Masashi Izumiya
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Yasuo Tanaka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Motoyuki Otsuka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Takamasa Ohki
- Department of Gastroenterology, Mitsui Memorial Hospital
| | - Masahiro Arai
- Department of Gastroenterology, Toshiba General Hospital
| | | | - Atsushi Tanaka
- Department of Medicine, Teikyo University School of Medicine
| | | | - Hideaki Miura
- Department of Gastroenterology, Tokyo Yamate Medical Center
| | - Itsuro Ogata
- Department of Gastroenterology, Kawakita General Hospital
| | | | - Kazuaki Inoue
- Department of Gastroenterology, Showa University Fujigaoka Hospital
| | - Ryo Nakagomi
- Department of Gastroenterology, Kanto Central Hospital of the Mutual Aid Association of Public School Teacher
| | | | | | - Hajime Fujie
- Department of Gastroenterology, Tokyo Shinjuku Medical Center
| | - Keiji Ogura
- Department of Gastroenterology, Tokyo Metropolitan Police Hospital
| | - Koji Uchino
- Department of Gastroenterology, Japanese Red Cross Medical Center
| | - Hideo Yoshida
- Department of Gastroenterology, Japanese Red Cross Medical Center
| | | | | | | | - Hisato Maekawa
- Department of Gastroenterology and Hepatology, Tokyo Takanawa Hospital
| | - Yuji Kondo
- Department of Gastroenterology and Hepatology, Kyoundo Hospital
| | - Shuntaro Obi
- Department of Gastroenterology and Hepatology, Kyoundo Hospital
| | - Takuma Teratani
- Department of Hepato-Bililary-Pancreatic Medicine, NTT Medical Center Tokyo
| | - Naohiko Masaki
- Clinical Laboratory Department, Center Hospital of the National Center for Global Health and Medicine
| | - Kayo Nagashima
- Department of Gastroenterology, National Disaster Medical Center
| | | | - Naoya Kato
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Hiroshi Yotsuyanagi
- Division of Infectious Disease and Applied Immunology, The University of Tokyo the Institute of Medical Science Research Hospital
| | - Kyoji Moriya
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Takashi Kumada
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
| | - Ryosuke Tateishi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo.
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Minami T, Tateishi R, Fujiwara N, Nakagomi R, Nakatsuka T, Sato M, Uchino K, Enooku K, Nakagawa H, Fujinaga H, Izumiya M, Hanajiri K, Asaoka Y, Kondo Y, Tanaka Y, Otsuka M, Ohki T, Arai M, Tanaka A, Yasuda K, Miura H, Ogata I, Kamoshida T, Inoue K, Koike Y, Akamatsu M, Mitsui H, Fujie H, Ogura K, Yoshida H, Wada T, Kurai K, Maekawa H, Obi S, Teratani T, Masaki N, Nagashima K, Ishikawa T, Kato N, Moriya K, Yotsuyanagi H, Koike K. Impact of Obesity and Heavy Alcohol Consumption on Hepatocellular Carcinoma Development after HCV Eradication with Antivirals. Liver Cancer 2021; 10:309-319. [PMID: 34414119 PMCID: PMC8339497 DOI: 10.1159/000513705] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 12/08/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND AND AIMS It remains unclear whether obesity increases the risk of hepatocellular carcinoma (HCC) in patients with chronic hepatitis C who achieved a sustained virological response (SVR) with antiviral therapy. METHODS In this multicenter cohort study, we enrolled patients with chronic hepatitis C who achieved SVR with interferon (IFN)-based therapy (IFN group) or direct-acting antiviral (DAA) therapy (DAA group) between January 1, 1990, and December 31, 2018. The patients underwent regular surveillance for HCC. Cumulative incidence of and the risk factors for HCC development after SVR were assessed using the Kaplan-Meier method and Cox proportional hazard regression analysis, respectively. RESULTS Among 2,055 patients (840 in the IFN group and 1,215 in the DAA group), 75 developed HCC (41 in the IFN group and 34 in the DAA group) during the mean observation period of 4.1 years. The incidence rates of HCC at 1, 2, and 3 years were 1.2, 1.9, and 3.0%, respectively. Multivariate analysis revealed that in addition to older age, lower albumin level, lower platelet count, higher alpha-fetoprotein level, and absence of dyslipidemia, obesity (body mass index ≥25 kg/m2) and heavy alcohol consumption (≥60 g/day) were independent risk factors for HCC development, with adjusted hazard ratio (HR) of 2.53 (95% confidence interval [CI]: 1.51-4.25) and 2.56 (95% CI: 1.14-5.75), respectively. The adjusted HR was not significant between the 2 groups (DAA vs. IFN; HR 1.19, 95% CI: 0.61-2.33). CONCLUSIONS Obesity and heavy alcohol consumption increased the risk of HCC development after SVR.
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Affiliation(s)
- Tatsuya Minami
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryosuke Tateishi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,*Ryosuke Tateishi,
| | - Naoto Fujiwara
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryo Nakagomi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takuma Nakatsuka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masaya Sato
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Koji Uchino
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kenichiro Enooku
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hayato Nakagawa
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hidetaka Fujinaga
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masashi Izumiya
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuyuki Hanajiri
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Department of Gastroenterology, Sanraku Hospital, Tokyo, Japan
| | - Yoshinari Asaoka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Yuji Kondo
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Department of Gastroenterology and Hepatology, Kyoundo Hospital, Tokyo, Japan
| | - Yasuo Tanaka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Motoyuki Otsuka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takamasa Ohki
- Department of Gastroenterology, Mitsui Memorial Hospital, Tokyo, Japan
| | - Masahiro Arai
- Department of Gastroenterology, Toshiba General Hospital, Toshiba, Japan
| | - Atsushi Tanaka
- Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Kiyomi Yasuda
- Department of Gastroenterology, Kiyokawa Hospital, Tokyo, Japan
| | - Hideaki Miura
- Department of Gastroenterology, Tokyo Yamate Medical Center, Tokyo, Japan
| | - Itsuro Ogata
- Department of Gastroenterology, Kawakita General Hospital, Tokyo, Japan
| | - Toshiro Kamoshida
- Department of Gastroenterology, Hitachi General Hospital, Hitachi, Japan
| | - Kazuaki Inoue
- Department of Gastroenterology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Yukihiro Koike
- Department of Gastroenterology, Kanto Central Hospital of the Mutual Aid Association of Public School Teacher, Tokyo, Japan
| | | | - Hiroshi Mitsui
- Department of Gastroenterology, Tokyo Teishin Hospital, Tokyo, Japan
| | - Hajime Fujie
- Department of Gastroenterology, Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - Keiji Ogura
- Department of Gastroenterology, Tokyo Metropolitan Police Hospital, Tokyo, Japan
| | - Hideo Yoshida
- Department of Gastroenterology, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Tomonori Wada
- Department of Gastroenterology, Sanraku Hospital, Tokyo, Japan
| | | | - Hisato Maekawa
- Department of Gastroenterology and Hepatology, Tokyo Takanawa Hospital, Tokyo, Japan
| | - Shuntaro Obi
- Department of Gastroenterology and Hepatology, Kyoundo Hospital, Tokyo, Japan
| | - Takuma Teratani
- Department of Hepato-Biliary-Pancreatic medicine, NTT Medical Center Tokyo, Tokyo, Japan
| | - Naohiko Masaki
- Clinical Laboratory Department, Center Hospital of the National Center for Global Health and Medicine, Tokyo, Japan
| | - Kayo Nagashima
- Department of Gastroenterology, National Disaster Medical Center, Tachikawa, Japan
| | | | - Naoya Kato
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kyoji Moriya
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Yotsuyanagi
- Division of Infectious Disease and Applied Immunology, The Institute of Medical Science Research Hospital, The University of Tokyo, Tokyo, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Hanajiri K, Maruyama T, Kaneko Y, Mitsui H, Watanabe S, Sata M, Nagai R, Kashima T, Shibahara J, Omata M, Matsumoto Y. Microbubble-induced increase in ablation of liver tumors by high-intensity focused ultrasound. Hepatol Res 2006; 36:308-14. [PMID: 16990046 DOI: 10.1016/j.hepres.2006.08.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2006] [Revised: 08/03/2006] [Accepted: 08/16/2006] [Indexed: 02/04/2023]
Abstract
We studied the possibility of using high-intensity focused ultrasound (HIFU) together with a microbubble agent to treat hepatocellular carcinoma. Development of liver tumors in rats was induced by administration of Dimethylnitrosamin (100ppm). Rats with liver tumors were anesthetized, underwent laparotomy, and were given the microbubble agent Levovist or saline intravenously. After the injection, the liver was exposed to HIFU for 30s (2.18MHz, 600W/cm(2), 40mm in diameter). Immediately after HIFU exposure, ultrasound images of the HIFU area were evaluated. Then the liver was excised and the volume of coagulated tissue was measured. The mean volumes of hyperechoic areas after HIFU were as follows (mm(3), Levovist versus saline: 355.3+/-180.7 versus 47.4+/-35.6, P<0.001, n=13). The volumes of liver tissue coagulated by HIFU were as follows (mm(3), Levovist versus saline: 275.3+/-120.0 versus 60.1+/-23.6, P<0.001, n=13). On microscopic examination of areas exposed to HIFU, implosion cysts were seen, and many cancer cells were found to have been destroyed completely (loss of cell membranes or nuclei). In conclusion, the microbubble agent Levovist can increase the volume of tissue coagulated by HIFU.
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Affiliation(s)
- Kazuyuki Hanajiri
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, Japan
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