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584 results on '"Kida, Mitsuhiro"'

4. Therapeutic Outcome of Multidisciplinary Treatment in Unresectable Biliary Tract Cancer: A Multicenter Retrospective Analysis

Author

Harada, Fumi, primary, Miyake, Kentaro, additional, Matsuyama, Ryusei, additional, Furuta, Kazunori, additional, Kida, Mitsuhiro, additional, Ohkawa, Shinichi, additional, Tanaka, Jun-ichi, additional, Asakura, Takeshi, additional, Sugimori, Kazuya, additional, Kawaguchi, Yoshiaki, additional, Mine, Tetsuya, additional, Kubota, Kazumi, additional, Shimada, Hiroshi, additional, and Endo, Itaru, additional

Published
2024
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7. Efficacy and factors affecting procedure results of short-type single-balloon enteroscopy–assisted ERCP for altered anatomy: a multicenter cohort in Japan

Author

Tanisaka, Yuki, Ryozawa, Shomei, Itoi, Takao, Yamauchi, Hiroshi, Katanuma, Akio, Okabe, Yoshinobu, Irisawa, Atsushi, Nakahara, Kazunari, Iwasaki, Eisuke, Ishii, Kentaro, Kin, Toshifumi, Terabe, Hiroya, Izawa, Naoya, Morita, Ryo, Minami, Kazuhiro, Araki, Ryuichiro, Fujita, Akashi, Ogawa, Tomoya, Mizuide, Masafumi, and Kida, Mitsuhiro

Published
2022
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10. Effectiveness of endoscopic ultrasound-guided tissue acquisition with stereomicroscopic on-site evaluation for preoperative diagnosis of resectable or borderline resectable pancreatic cancer: a prospective study

Author

Ishizaki, Junro, primary, Okuwaki, Kosuke, additional, Watanabe, Masafumi, additional, Imaizumi, Hiroshi, additional, Iwai, Tomohisa, additional, Hasegawa, Rikiya, additional, Kurosu, Takahiro, additional, Tadehara, Masayoshi, additional, Matsumoto, Takaaki, additional, Adachi, Kai, additional, Hanaoka, Taro, additional, Kida, Mitsuhiro, additional, and Kusano, Chika, additional

Published
2024
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11. Consensus statements on endoscopic ultrasound‐guided tissue acquisition. Guidelines from the Asian Endoscopic Ultrasound Group

Author

Chong, Charing Ching‐Ning, primary, Pittayanon, Rapat, additional, Pausawasdi, Nonthalee, additional, Bhatia, Vikram, additional, Okuno, Nozomi, additional, Tang, Raymond Shing‐Yan, additional, Cheng, Tsu‐Yao, additional, Kuo, Yu‐Ting, additional, Oh, Dongwook, additional, Song, Tae Jun, additional, Kim, Tae Hyeon, additional, Hara, Kazuo, additional, Chan, Anthony Wing‐Hung, additional, Leung, Howard Ho Wai, additional, Yang, Aiming, additional, Jin, Zhendong, additional, Xu, Can, additional, Lakhtakia, Sundeep, additional, Wang, Hsiu‐Po, additional, Seo, Dong‐Wan, additional, Teoh, Anthony Yuen‐Bun, additional, Ho, Lawrence Khek‐Yu, additional, and Kida, Mitsuhiro, additional

Published
2024
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12. JNETS clinical practice guidelines for gastroenteropancreatic neuroendocrine neoplasms: diagnosis, treatment, and follow-up: a synopsis

Author

Ito, Tetsuhide, Masui, Toshihiko, Komoto, Izumi, Doi, Ryuichiro, Osamura, Robert Y., Sakurai, Akihiro, Ikeda, Masafumi, Takano, Koji, Igarashi, Hisato, Shimatsu, Akira, Nakamura, Kazuhiko, Nakamoto, Yuji, Hijioka, Susumu, Morita, Koji, Ishikawa, Yuichi, Ohike, Nobuyuki, Kasajima, Atsuko, Kushima, Ryoji, Kojima, Motohiro, Sasano, Hironobu, Hirano, Satoshi, Mizuno, Nobumasa, Aoki, Taku, Aoki, Takeshi, Ohtsuka, Takao, Okumura, Tomoyuki, Kimura, Yasutoshi, Kudo, Atsushi, Konishi, Tsuyoshi, Matsumoto, Ippei, Kobayashi, Noritoshi, Fujimori, Nao, Honma, Yoshitaka, Morizane, Chigusa, Uchino, Shinya, Horiuchi, Kiyomi, Yamasaki, Masanori, Matsubayashi, Jun, Sato, Yuichi, Sekiguchi, Masau, Abe, Shinichi, Okusaka, Takuji, Kida, Mitsuhiro, Kimura, Wataru, Tanaka, Masao, Majima, Yoshiyuki, Jensen, Robert T., Hirata, Koichi, Imamura, Masayuki, and Uemoto, Shinji

Published
2021
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13. Deep learning analysis for differential diagnosis and risk classification of gastrointestinal tumors.

Author

Iwai, Tomohisa, Kida, Mitsuhiro, Okuwaki, Kosuke, Watanabe, Masafumi, Adachi, Kai, Ishizaki, Junro, Hanaoka, Taro, Tamaki, Akihiro, Tadehara, Masayoshi, Imaizumi, Hiroshi, and Kusano, Chika

Subjects
*COMPUTER-aided diagnosis, *ENDOSCOPIC ultrasonography, *RECEIVER operating characteristic curves, *DEEP learning, *GASTROINTESTINAL tumors
Abstract

Recently, artificial intelligence (AI) has been applied to clinical diagnosis. Although AI has already been developed for gastrointestinal (GI) tract endoscopy, few studies have applied AI to endoscopic ultrasound (EUS) images. In this study, we used a computer-assisted diagnosis (CAD) system with deep learning analysis of EUS images (EUS-CAD) and assessed its ability to differentiate GI stromal tumors (GISTs) from other mesenchymal tumors and their risk classification performance. A total of 101 pathologically confirmed cases of subepithelial lesions (SELs) arising from the muscularis propria layer, including 69 GISTs, 17 leiomyomas and 15 schwannomas, were examined. A total of 3283 EUS images were used for training and five-fold-cross-validation, and 827 images were independently tested for diagnosing GISTs. For the risk classification of 69 GISTs, including very-low-, low-, intermediate- and high-risk GISTs, 2,784 EUS images were used for training and three-fold-cross-validation. For the differential diagnostic performance of GIST among all SELs, the accuracy, sensitivity, specificity and area under the receiver operating characteristic (ROC) curve were 80.4%, 82.9%, 75.3% and 0.865, respectively, whereas those for intermediate- and high-risk GISTs were 71.8%, 70.2%, 72.0% and 0.771, respectively. The EUS-CAD system showed a good diagnostic yield in differentiating GISTs from other mesenchymal tumors and successfully demonstrated the GIST risk classification feasibility. This system can determine whether treatment is necessary based on EUS imaging alone without the need for additional invasive examinations. [ABSTRACT FROM AUTHOR]

Published
2024
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19. Analysis of BRCAness with multiplex ligation-dependent probe amplification using formalin-fixed and paraffin-embedded pancreatic ductal adenocarcinoma tissue obtained via endoscopic ultrasound-guided fine-needle aspiration biopsy

Author

Okuwaki, Kosuke, Masutani, Hironori, Imaizumi, Hiroshi, Yoshida, Tsutomu, Kida, Mitsuhiro, Iwai, Tomohisa, Yamauchi, Hiroshi, Tadehara, Masayoshi, Adachi, Kai, Watanabe, Masafumi, Kurosu, Takahiro, and Koizumi, Wasaburo

Published
2019
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20. Efficacy of endoscopic ultrasound‐guided tissue acquisition using stereo‐microscopic on‐site evaluation for possible comprehensive genome profile in patients with advanced pancreatic cancer.

Author

Okuwaki, Kosuke, Watanabe, Masafumi, Yoshida, Tsutomu, Tamaki, Akihiro, Iwai, Tomohisa, Adachi, Kai, Ishizaki, Junro, Hanaoka, Taro, Imaizumi, Hiroshi, Kida, Mitsuhiro, and Kusano, Chika

Subjects
CANCER patients, ON-site evaluation, ENDOSCOPIC ultrasonography, DEGLUTITION, PANCREATIC cancer, GUIDED tissue regeneration, GENOMES, TISSUES
Abstract

Background and Aim: Stereomicroscopic on‐site evaluation (SOSE) is a rapid evaluation method for endoscopic ultrasound‐guided tissue acquisition (EUS‐TA) with a high diagnostic sensitivity when the stereomicroscopically visible white core (SVWC) cut‐off value (≥ 11 mm) is met. We prospectively examined the association between SVWCs and the adequacy of tissue specimens, assuming subsequent comprehensive genome profiling (CGP). Methods: This study included 66 consecutive patients with suspected unresectable pancreatic cancer who underwent EUS‐TA. The primary endpoint was the frequency of combined samples with ≥ 20% tumor cell content that met over twice the SVWC (T‐SVWC) cut‐off value, achieved through multiple punctures. The secondary endpoints were the number of punctures, the percentage of SVWC cut‐off values, adverse events, the positive diagnosis rate, and the tissue section area. Results: The median number of EUS‐TA punctures for suspected unresectable pancreatic cancer was 3 (range, 3–4); SVWC and T‐SVWC cut‐off values were obtained in 171/206 specimens and 65/66 patients, respectively. There were no EUS‐TA‐related adverse events. The positive diagnosis rate of EUS‐TA was 95.5%. Among the 63 patients meeting the T‐SVWC cut‐off value in pathological diagnoses, the median tumor cell content was 40% (range, 5–80%), with 57 patients having tumor cell content ≥ 20%. The median tissue section area was 15 (range, 3–40) mm2. Conclusions: When performing EUS‐TA for unresectable pancreatic cancer with the intention of subsequent CGP, obtaining a high tumor cell content (≥ 20%) by assessing the T‐SVWC cut‐off value via SOSE may serve as a novel indicator for on‐site estimation of CGP suitability for EUS‐TA specimens. [ABSTRACT FROM AUTHOR]

Published
2024
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22. Balloon enteroscopy‐assisted endoscopic retrograde cholangiopancreatography for asymptomatic common bile duct stones on surgically altered anatomy: A high risk factor for post‐endoscopic retrograde cholangiopancreatography pancreatitis

Author

Watanabe, Masafumi, primary, Okuwaki, Kosuke, additional, Iwai, Tomohisa, additional, Kida, Mitsuhiro, additional, Imaizumi, Hiroshi, additional, Adachi, Kai, additional, Tamaki, Akihiro, additional, Ishizaki, Junro, additional, Hanaoka, Taro, additional, and Kusano, Chika, additional

Published
2023
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27. Current status of esophageal endoscopy including the evaluation of smoking and alcohol consumption in Japan: an analysis based on the Japan endoscopy database

Author

Katada, Chikatoshi, Horimatsu, Takahiro, Muto, Manabu, Tanaka, Kiyohito, Matsuda, Koji, Fujishiro, Mitsuhiro, Saito, Yutaka, Ohtsuka, Kazuo, Oda, Ichiro, Kato, Masayuki, Kida, Mitsuhiro, Kobayashi, Kiyonori, Hoteya, Shu, Kodashima, Shinya, Matsuda, Takahisa, Yamamoto, Hironori, Ryozawa, Shomei, Iwakiri, Ryuichi, Kutsumi, Hiromu, Miyata, Hiroaki, Kato, Mototsugu, Haruma, Ken, Fujimoto, Kazuma, Uemura, Naomi, Kaminishi, Michio, and Tajiri, Hisao

Published
2019
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28. Balloon enteroscopy‐assisted endoscopic retrograde cholangiopancreatography for asymptomatic common bile duct stones on surgically altered anatomy: A high risk factor for post‐endoscopic retrograde cholangiopancreatography pancreatitis.

Author

Watanabe, Masafumi, Okuwaki, Kosuke, Iwai, Tomohisa, Kida, Mitsuhiro, Imaizumi, Hiroshi, Adachi, Kai, Tamaki, Akihiro, Ishizaki, Junro, Hanaoka, Taro, and Kusano, Chika

Abstract

Background: Post‐endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP) is more common in patients with asymptomatic common bile duct stones (CBDSs) and normal anatomy than in those with symptomatic CBDS; however, studies on the effect of surgically altered anatomy are lacking. We aimed to investigate whether asymptomatic CBDS in balloon enteroscopy‐assisted ERCP cases for surgically altered anatomy also has a high incidence of PEP and analyze the risk factors for PEP. Methods: We retrospectively analyzed 108 consecutive patients who underwent initial ERCP for CBDS with surgically altered anatomies and with naive papilla at Kitasato University Hospital from April 2015 to December 2022. Results: Study participants were as follows: 92 (85%) patients with symptomatic CBDS and 16 (15%) patients asymptomatic CBDS. The overall bile duct cannulation success rate was 89.8%, with PEP occurring in 7.4% of patients (symptomatic CBDS: 3.3%, asymptomatic CBDS: 31.3%). PEP incidence was significantly higher for asymptomatic CBDS (p =.0017). Multivariate analysis identified asymptomatic CBDS and precut sphincterotomy as significant risk factors for PEP. Conclusions: Asymptomatic CBDS may be a risk factor for PEP onset in balloon enteroscopy‐assisted ERCP with surgically altered anatomy. Therefore, the procedure should be performed after obtaining sufficient informed consent and adequate preparation. [ABSTRACT FROM AUTHOR]

Published
2024
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31. Stereomicroscopic on-site evaluation in endoscopic ultrasound-guided tissue acquisition of upper gastrointestinal subepithelial lesions

Author

Nakatani, Seigo, primary, Okuwaki, Kosuke, additional, Watanabe, Masafumi, additional, Imaizumi, Hiroshi, additional, Iwai, Tomohisa, additional, Matsumoto, Takaaki, additional, Hasegawa, Rikiya, additional, Masutani, Hironori, additional, Kurosu, Takahiro, additional, Tamaki, Akihiro, additional, Ishizaki, Junro, additional, Ishizaki, Ayana, additional, Kida, Mitsuhiro, additional, and Kusano, Chika, additional

Published
2023
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32. Implication of Skeletal Muscle Loss in the Prognosis of Patients with Pancreatic Ductal Adenocarcinoma Receiving Chemotherapy

Author

Ishizaki, Ayana, primary, Okuwaki, Kosuke, additional, Kida, Mitsuhiro, additional, Imaizumi, Hiroshi, additional, Iwai, Tomohisa, additional, Yamauchi, Hiroshi, additional, Kaneko, Toru, additional, Hasegawa, Rikiya, additional, Watanabe, Masafumi, additional, Kurosu, Takahiro, additional, Ishizaki, Junro, additional, and Kusano, Chika, additional

Published
2023
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35. Microsatellite instability evaluation of unresectable pancreatic cancer using endoscopic ultrasound-guided fine-needle aspiration specimens

Author

WATANABE, Masafumi, primary, OKUWAKI, Kosuke, additional, IWAI, Tomohisa, additional, KANEKO, Toru, additional, HASEGAWA, Rikiya, additional, MATSUMOTO, Takaaki, additional, UEHARA, Kazuho, additional, MASUTANI, Hironori, additional, ADACHI, Kai, additional, TADEHARA, Masayoshi, additional, NAKATANI, Seigo, additional, KUROSU, Takahiro, additional, MINATO, Naoki, additional, TAMAKI, Akihiro, additional, ISHIZAKI, Ayana, additional, ISHIZAKI, Junro, additional, HANAOKA, Taro, additional, MANABE, Yusaku, additional, IMAWARI, Kana, additional, KOGAMI, Taro, additional, MATSUSHITA, Masahiro, additional, IMAIZUMI, Hiroshi, additional, KIDA, Mitsuhiro, additional, and KUSANO, Chika, additional

Published
2022
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36. Outcomes of Interferon-free Treatment of Hepatitis C Virus Infection Seven Years after Approval and Problems with Drop out during and after Treatment: A Retrospective, Single-center Study

Author

Watanabe, Masaaki, primary, Yokomori, Hiroaki, additional, Kitahara, Gen, additional, Uehara, Kazuho, additional, Koyama, Shiori, additional, Minamino, Tsutomu, additional, Otsuka, Toshikazu, additional, Kaneko, Toru, additional, Tahara, Kumiko, additional, and Kida, Mitsuhiro, additional

Published
2022
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39. First progress report on the Japan Endoscopy Database project

Author

Kodashima, Shinya, Tanaka, Kiyohito, Matsuda, Koji, Fujishiro, Mitsuhiro, Saito, Yutaka, Ohtsuka, Kazuo, Oda, Ichiro, Katada, Chikatoshi, Kato, Masayuki, Kida, Mitsuhiro, Kobayashi, Kiyonori, Hoteya, Shu, Horimatsu, Takahiro, Matsuda, Takahisa, Muto, Manabu, Yamamoto, Hironori, Ryozawa, Shomei, Iwakiri, Ryuichi, Kutsumi, Hiromu, Miyata, Hiroaki, Kato, Mototsugu, Haruma, Ken, Fujimoto, Kazuma, Uemura, Naomi, Kaminishi, Michio, and Tajiri, Hisao

Published
2018
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40. Design paper: Japan Endoscopy Database (JED): A prospective, large database project related to gastroenterological endoscopy in Japan

Author

Matsuda, Koji, Tanaka, Kiyohito, Fujishiro, Mitsuhiro, Saito, Yutaka, Ohtsuka, Kazuo, Oda, Ichiro, Katada, Chikatoshi, Kato, Masayuki, Kida, Mitsuhiro, Kobayashi, Kiyonori, Hoteya, Shu, Horimatsu, Takahiro, Kodashima, Shinya, Matsuda, Takahisa, Muto, Manabu, Yamamoto, Hironori, Ryozawa, Shomei, Iwakiri, Ryuichi, Kutsumi, Hiromu, Miyata, Hiroaki, Kato, Mototsugu, Haruma, Ken, Fujimoto, Kazuma, Uemura, Naomi, Kaminishi, Michio, and Tajiri, Hisao

Published
2018
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42. Cholecystitis after Placement of Covered Self-Expandable Metallic Stents in Patients with Distal Malignant Biliary Obstructions

Author

Watanabe, Masafumi, Okuwaki, Kosuke, Woo, Jun, Kida, Mitsuhiro, Imaizumi, Hiroshi, Iwai, Tomohisa, Yamauchi, Hiroshi, Kaneko, Toru, Hasegawa, Rikiya, Kurosu, Takahiro, Minato, Naoki, Haradome, Hiroki, and Koizumi, Wasaburo

Subjects
medicine.medical_specialty, endoscopic retrograde cholangiopancreatography, Biliary obstructions, Medicine (miscellaneous), RC799-869, Self-expandable metallic stent, cholecystitis, Medicine, malignant biliary obstruction, risk factors, Radiology, Nuclear Medicine and imaging, In patient, Prospective cohort study, Internal medicine, Endoscopic retrograde cholangiopancreatography, medicine.diagnostic_test, business.industry, Gallbladder, Gastroenterology, Diseases of the digestive system. Gastroenterology, medicine.disease, RC31-1245, self-expandable metallic stents, medicine.anatomical_structure, Cholecystitis, Cystic duct, Original Article, Radiology, business
Abstract

Background/Aims: Cholecystitis can occur after the placement of covered self-expandable metallic stents for distal malignant biliary obstructions. We aimed to identify risk factors for cholecystitis following covered self-expandable metallic stent placement.Methods: We investigated risk factors related to cholecystitis following covered self-expandable metallic stent placement in 118 patients with distal malignant biliary obstructions between January 1, 2015 and April 30, 2019. Endoscopic assessments and tumor invasion to the arteries feeding the gallbladder were determined by a pancreaticobiliary endoscopist and a radiologist, respectively.Results: The median patient age was 72 years (men, 61.0%). The flow of the contrast agent into the gallbladder and tumor involvement in the orifice of the cystic duct were observed in 35 (29.7%) and 35 (29.7%) patients, respectively. During the observation period (median, 179 days), cholecystitis occurred in 18 (15.3%) patients. Multivariate analysis revealed the flow of the contrast agent into the gallbladder (p=0.023) and tumor involvement in the orifice of the cystic duct (p=0.005) as significant independent risk factors associated with cholecystitis.Conclusions: The flow of the contrast agent into the gallbladder and tumor involvement in the orifice of the cystic duct are potential independent risk factors for cholecystitis following the placement of covered self-expandable metallic stents. A follow-up prospective study is warranted to validate their influence.

Published
2021

44. Collecting Novel Technical Terms from the Web by Estimating Domain Specificity of a Term

Author

Utsuro, Takehito, Kida, Mitsuhiro, Tonoike, Masatsugu, Sato, Satoshi, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Matsumoto, Yuji, editor, Sproat, Richard W., editor, Wong, Kam-Fai, editor, and Zhang, Min, editor

Published
2006
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45. Towards Automatic Domain Classification of Technical Terms: Estimating Domain Specificity of a Term Using the Web

Author

Utsuro, Takehito, Kida, Mitsuhiro, Tonoike, Masatsugu, Sato, Satoshi, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ng, Hwee Tou, editor, Leong, Mun-Kew, editor, Kan, Min-Yen, editor, and Ji, Donghong, editor

Published
2006
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48. Diagnostic yield of EUS-TA for gastric submucosal epithelial lesions using rapid specimen evaluation under stereomicroscopy

Author

Hirai, Tetsuhiko, primary, Ishizaki, Junro, additional, Imaizumi, Hiroshi, additional, Kim, Myontyori, additional, Saegusa, Yoichi, additional, Tamaki, Akinori, additional, Watanabe, Masafumi, additional, Masutani, Hironori, additional, Okuwaki, Kosuke, additional, Kida, Mitsuhiro, additional, and Kusano, Chika, additional

Published
2022
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