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Ichiro Takemasa

osaka international medical and science center and osaka keisatsu hospital

59H-index
604Paper Count
1.4WCitation Count
Published Papers 123
Publication Date
Prognostic Impact of Circumferential Resection Margin in Minimally Invasive Surgery for Locally Advanced Rectal Cancer: A Multicenter Prospective Study
err2026-09-10
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errAtsushi Hamabe; Masaaki Ito; Shigeo Toda; Yusuke Suwa; Suguru Hasegawa; Masanori Kotake; Masafumi Inomata; Kazuki Ueda; Atsushi Ogura; Kiichi Sugimoto; Kei Kimura; Koki Otsuka; Tatsuki Noguchi; Koya Hida; Yasumitsu Hirano; Kazushige Kawai; Shigeru Yamagishi; Takeshi Naitoh; Ichiro Takemasa; Japan Society of Laparoscopic Colorectal Surgery
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Interaction Between Operator and Assistant Certification Is Associated With Local Recurrence After Laparoscopic Rectal Cancer Surgery: An Ancillary Analysis of the EnSSURE Study
err2026-09-09
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errYusuke Sakimura; Hiroyuki Bando; Koya Hida; Tatsunari Fukuoka; Tohru Funakoshi; Fuminori Teraishi; Kay Uehara; Yuji Inoue; Nobuaki Suzuki; Nobuki Ichikawa; Hiroaki Iijima; Akinobu Taketomi; Yoshiharu Sakai; Takeshi Naitoh; Ichiro Takemasa; the EnSSURE study group collaboratives within the Japan Society of Laparoscopic Colorectal Surgery
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Clinical significance of WES-defined ERBB2 amplification in resectable colorectal cancer
err2026-08-20
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errKazuki Kishi; Atsushi Hamabe; Yusuke Suwa; Naoya Akazawa; Keiji Hirata; Masataka Ikeda; Mitsuru Yokota; Kentaro Kato; Masahito Kotaka; Yujiro Nishizawa; Hideaki Bando; Yoshiaki Nakamura; Saori Mishima; Tadayoshi Hashimoto; Arkarachai Fungtammasan; Charuta C. Palsuledesai; Robert W. Lentz; Daisuke Kotani; Hiroya Taniguchi; Jun Watanabe; Ichiro Takemasa; Takeshi Kato; Mamoru Uemura; Hidetoshi Eguchi; Yuichiro Doki; Eiji Oki; Takayuki Yoshino
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Exploratory Analysis of Factors Associated With the Recovery of Erectile Dysfunction After Rectal Cancer Surgery (Sub-Analysis of LANDMARC Trial)
err2026-07-03
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errRyosuke Mizuno; Koya Hida; Masakatsu Numata; Takashi Sakamoto; Kazutaka Obama; Akio Shiomi; Ryo Inada; Manabu Shiozawa; Mayumi Ozawa; Masanori Hotchi; Daisuke Yamamoto; Suguru Hasegawa; Masashi Miguchi; Shinobu Ohnuma; Tomohiro Yamaguchi; Tomonori Akagi; Yusuke Kinugasa; Shigeki Yamaguchi; Hiroyasu Kagawa; Masahiko Watanabe; Takeshi Naitoh; Ichiro Takemasa
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Post-adjuvant chemotherapy in ctDNA-positive patients with resected colorectal cancer: a randomized phase 3 trial
err2026-06-08
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errHideaki Bando; Jun Watanabe; Yusuke Takahashi; Masahito Kotaka; Nobuhisa Matsuhashi; Eiji Oki; Yoshito Komatsu; Manabu Shiozawa; Keiji Hirata; Yuji Miyamoto; Masanobu Takahashi; Kentaro Yamazaki; Dai Manaka; Akiyoshi Kanazawa; Yi-Hsin Liang; Kun-Huei Yeh; Yuko Watsuji; Yuko Yamamoto; Makoto Fukui; Shruti Sharma; Vasily N. Aushev; Adham Jurdi; Matthew Rabinowitz; Minetta C. Liu; Alexey Aleshin; Ichiro Takemasa; Daisuke Kotani; Akihiro Sato; Toshihiro Misumi; Yoshiaki Nakamura; Qian Shi; Hiroya Taniguchi; Takayuki Yoshino; Takeshi Kato
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ASO Visual Abstract: Impact of Hospital Volume on Local Recurrence of Rectal Cancer After Transanal Total Mesorectal Excision: A Nationwide Multicenter Cohort Study in Japan
err2026-04-01
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PREAI
errNaohito Beppu; Takeru Matsuda; Masataka Ikeda; Masataka Igeta; Ichiro Takemasa; Akiyoshi Kanazawa; Yukitoshi Todate; Yoshihiro Kakeji; Seiichiro Yamamoto; Takeshi Naitoh
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Impact of Hospital Volume on Local Recurrence of Rectal Cancer After Transanal Total Mesorectal Excision: A Nationwide Multicenter Cohort Study in Japan
err2026-03-17
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PREAI
errNaohito Beppu; Takeru Matsuda; Masataka Ikeda; Masataka Igeta; Ichiro Takemasa; Akiyoshi Kanazawa; Yukitoshi Todate; Yoshihiro Kakeji; Seiichiro Yamamoto; Takeshi Naitoh
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Manual repositioning of the small bowel and omentum prevents early postoperative small bowel obstruction after laparoscopic colorectal surgery: a propensity score-matched study
err2025-10-01
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errTakeda, Mitsunobu; Uemura, Mamoru; Mizushima, Tsunekazu; Yoshida, Shoma; Inoue, Takuya; Sekido, Yuki; Hata, Tsuyoshi; Hamabe, Atsushi; Ogino, Takayuki; Miyoshi, Norikatsu; Takemasa, Ichiro; Doki, Yuichiro; Eguchi, Hidetoshi
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Molecular Residual Disease and Recurrence in Rectal Cancer Patients Undergoing Upfront Surgery: A Prospective Cohort Study
err2025-09-26
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errAndo, Koji MD, PhD; Hamabe, Atsushi MD, PhD; Nakamura, Yoshiaki MD, PhD; Watanabe, Jun MD, PhD; Hirata, Keiji MD, PhD; Kataoka, Kozo MD, PhD; Miyo, Masaaki MD, PhD; Kato, Kentaro MD; Akazawa, Naoya MD; Kagawa, Yoshinori MD, PhD; Yokota, Mitsuru MD, PhD; Yamazaki, Kentaro MD, PhD; Mishima, Saori MD, PhD; Yukami, Hiroki MD; Kotani, Daisuke MD, PhD; Bando, Hideaki MD, PhD; Laliotis, George MD, MHA, MPH, MBA; Sharma, Shruti PhD; Palsuledesai, Charuta C. PhD; Rabinowitz, Matthew PhD; Jurdi, Adham MD; Liu, Minetta C. MD; Aleshin, Alexey MD; Taniguchi, Hiroya MD, PhD; Takemasa, Ichiro MD, PhD; Kato, Takeshi MD, PhD; Yoshino, Takayuki MD, PhD; Oki, Eiji MD, PhD
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HIBRID: histology-based risk-stratification with deep learning and ctDNA in colorectal cancer
err2025-08-14
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errChiara M. L. Loeffler; Hideaki Bando; Srividhya Sainath; Hannah Sophie Muti; Xiaofeng Jiang; Marko van Treeck; Nic Gabriel Reitsam; Zunamys I. Carrero; Asier Rabasco Meneghetti; Tomomi Nishikawa; Toshihiro Misumi; Saori Mishima; Daisuke Kotani; Hiroya Taniguchi; Ichiro Takemasa; Takeshi Kato; Eiji Oki; Yuan Tanwei; Wankhede Durgesh; Sebastian Foersch; Hermann Brenner; Michael Hoffmeister; Yoshiaki Nakamura; Takayuki Yoshino; Jakob Nikolas Kather
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Surgical Procedure of Lateral Lymph Node Dissection for Advanced Lower Rectal Cancer
err2025-05-13
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errMamoru Uemura; Jun Watanabe; Akio Shiomi; Takashi Akiyoshi; George J. Chang; Yukihide Kanemitsu; Ichiro Takemasa; Yoshiharu Sakai; Masahiko Watanabe; Itaru Endo
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Analysis of ctDNA changes in locally advanced rectal cancer that underwent neoadjuvant treatment - GALAXY trial
err2024-10-01
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PREAI
errHamabe, A.; Takemasa, I.; Ando, K.; Nakamura, Y.; Mishima, S.; Yukami, H.; Hirata, K.; Miyo, M.; Matsuhashi, N.; Uemura, M.; Ide, Y.; Takano, Y.; Adham, J.; Kotani, D.; Taniguchi, H.; Oki, E.; Kato, T.; Yoshino, T.
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ctDNA-based molecular residual disease and survival in resectable colorectal cancer
err2024-09-16
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errNakamura, Yoshiaki; Watanabe, Jun; Akazawa, Naoya; Hirata, Keiji; Kataoka, Kozo; Yokota, Mitsuru; Kato, Kentaro; Kotaka, Masahito; Kagawa, Yoshinori; Yeh, Kun-Huei; Mishima, Saori; Yukami, Hiroki; Ando, Koji; Miyo, Masaaki; Misumi, Toshihiro; Yamazaki, Kentaro; Ebi, Hiromichi; Okita, Kenji; Hamabe, Atsushi; Sokuoka, Hiroki; Kobayashi, Satoshi; Laliotis, George; Aushev, Vasily N.; Sharma, Shruti; Jurdi, Adham; Liu, Minetta C.; Aleshin, Alexey; Rabinowitz, Matthew; Bando, Hideaki; Taniguchi, Hiroya; Takemasa, Ichiro; Kato, Takeshi; Kotani, Daisuke; Mori, Masaki; Yoshino, Takayuki; Oki, Eiji
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Survival benefit of adjuvant chemotherapy based on molecular residual disease detection in resected colorectal liver metastases: Subgroup analysis from CIRCULATE-Japan GALAXY
err2024-09-01
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PREAI
errKataoka, K.; Mori, K.; Nakamura, Y.; Watanabe, J.; Hirata, K.; Akazawa, N.; Yokota, M.; Kato, K.; Kotaka, M.; Yamazaki, K.; Kagawa, Y.; Sharma, S.; Jurdi, A.; Kotani, D.; Bando, H.; Taniguchi, H.; Takemasa, I.; Kato, T.; Yoshino, T.; Oki, E.
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Association of ctDNA-based MRD detection and MRD clearance with short-term overall survival in patients with resectable colorectal cancer: Updated analysis of CIRCULATE-Japan GALAXY
err2024-09-01
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PREAI
errNagata, J.; Nakamura, Y.; Watanabe, J.; Akazawa, N.; Ikeda, M.; Yokota, M.; Kato, K.; Kotaka, M.; Yamazaki, K.; Kagawa, Y.; Yeh, K-H.; Laliotis, G.; Jurdi, A.; Kotani, D.; Bando, H.; Taniguchi, H.; Takemasa, I.; Kato, T.; Yoshino, T.; Oki, E.
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Association between copy number aberration and ctDNA MRD in colorectal cancer: CIRCULATE-Japan GALAXY
err2024-09-01
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PREAI
errHarima, T.; Yamashita, R.; Nakamura, Y.; Sakai, S.; Nomura, R.; Saori, M.; Kotani, D.; Taniguchi, H.; Watanabe, J.; Takemasa, I.; Kato, T.; Oki, E.; Yoshizumi, T.; Yoshino, T.
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Novel clinical decision support (CDS) system optimizing adjuvant chemotherapy (ACT) for colorectal cancer (CRC) by integrating deep learning and circulating tumor DNA (ctDNA) molecular residual disease (MRD): GALAXY histotyping
err2024-09-01
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PREAI
errNakamura, Y.; Kildal, W.; Misumi, T.; Pradhan, M.; Watanabe, J.; Skrede, O-J; Kotani, D.; Raedt, S. D.; Bando, H.; Kalsnes, J.; Taniguchi, H.; Liestol, K.; Takemasa, I.; Hveem, T. S.; Kato, T.; Novelli, M.; Oki, E.; Kerr, D. J.; Yoshino, T.; Kleppe, A.
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The potential of an artificial intelligence for diagnosing MRI images in rectal cancer: multicenter collaborative trial
err2024-07-31
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errHamabe, Atsushi; Takemasa, Ichiro; Ishii, Masayuki; Okuya, Koichi; Hida, Koya; Nishizaki, Daisuke; Sumii, Atsuhiko; Arizono, Shigeki; Kohno, Shigeshi; Tokunaga, Koji; Nakai, Hirotsugu; Sakai, Yoshiharu; Watanabe, Masahiko
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Long-term Outcome After Surgical Resection of Para-aortic Lymph Node Metastasis of Colorectal Cancer: A Multicenter Retrospective Study
err2024-07-16
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PREAI
errIto, Sono; Kinugasa, Yusuke; Yamauchi, Shinichi; Sato, Hiroyuki; Hirakawa, Akihiro; Ishihara, Soichiro; Shiomi, Akio; Kanemitsu, Yukihide; Suto, Takeshi; Takahashi, Hiroki; Itabashi, Michio; Shiozawa, Manabu; Hiyoshi, Masaya; Kobatake, Takaya; Komori, Koji; Egi, Hiroyuki; Ozawa, Heita; Yamaguchi, Tomohiro; Inada, Ryo; Ito, Masaaki; Hirano, Yasumitsu; Furutani, Akinobu; Tanabe, Yoshitaka; Ueno, Hideki; Ohue, Masayuki; Hida, Koya; Kawai, Kazushige; Sunami, Eiji; Ishida, Hideyuki; Uehara, Kay; Watanabe, Jun; Hotchi, Masanori; Ishibe, Atsushi; Takii, Yasumasa; Hiro, Junichiro; Numata, Masakatsu; Takemasa, Ichiro; Kato, Takeshi; Kakeji, Yoshihiro; Hirata, Akira; Ajioka, Yoichi
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