Nakatsuka, Seishi

写真a

Affiliation

School of Medicine, Department of Radiology (Diagnostic Radiology) （Shinanomachi）

Position

Assistant Professor/Senior Assistant Professor

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Papers 【 Display / hide 】

  • Laparoscopic Partial Closure for Congenital Portosystemic Shunt-Indications, Postoperative Management, and Subsequent Complete Closure

    Mori T., Yamada Y., Abe K., Takahashi N., Kano M., Fujimura T., Watanabe T., Nakatsuka S., Hoshino K., Kuroda T.

    Journal of Laparoendoscopic and Advanced Surgical Techniques （Journal of Laparoendoscopic and Advanced Surgical Techniques)  29 （ 4 ） 573 - 578 2019.04

    ISSN  10926429

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    © Copyright 2019, Mary Ann Liebert, Inc., publishers 2019. Extrahepatic congenital portosystemic shunts (CPSSs) can be occluded by surgical or endovascular approaches. However, when the estimated portal vein (PV) pressure after the closure is high enough to induce symptoms associated with portal hypertension, partial closure is recommended to avoid life-threatening events. In this study, we attempted laparoscopic partial closure of a CPSS in two patients. Along with intraoperative real-time measuring of the PV pressure and angiography, laparoscopic partial closure was performed to achieve a PV pressure of ≤25 mmHg. Subsequently, the intrahepatic portal system grew in both patients. The partially ligated CPSS closed spontaneously in the first patient. In the second patient, laparoscopic complete closure was performed for the residual CPSS 6 months after the first operation. To our knowledge, this is the first report of laparoscopic partial closure for CPSS. Minimally invasive laparoscopic partial ligation of CPSS is technically feasible and useful when the estimated PV pressure is too high to tolerate one-step complete closure.

  • Computed tomography-guided percutaneous cryoablation for recurrent sacral chordoma following carbon ion radiotherapy: A case report

    Inaba N., Nakayama R., Mori T., Hosaka S., Susa M., Yabe H., Inoue M., Nakatsuka S., Nakamura M., Matsumoto M., Toyama Y., Morioka H.

    Journal of Orthopaedic Science （Journal of Orthopaedic Science)  24 （ 2 ） 368 - 372 2019.03

    ISSN  09492658

  • Initial experience with transbronchial cryoablation as a novel local treatment for malignant peripheral lung lesions

    Kohno M., Hashimoto R., Oiwa K., Yashiro H., Nakatsuka S., Kawamura M., Iwazaki M.

    BMJ Open Respiratory Research （BMJ Open Respiratory Research)  5 （ 1 ）  2018.12

    　View Summary

    © Author(s) (or their employer(s)) 2018. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. Introduction Percutaneous cryoablation has been adopted for small, malignant peripheral pulmonary lesions and has yielded favourable results as a less invasive local treatment. A transbronchial approach may reduce the risks of complications, such as pneumothorax and pleural haemorrhage. A fundamental animal experiment on transbronchial cryoablation was performed to examine its immediate safety and effectiveness. Methods Experimental cryoablation was performed on swine lungs using a rigid cryoprobe, 2.4 mm in diameter. The probe was introduced from the right main bronchus into the distal bronchus via thoracotomy, perforated the end of the conducting bronchus and reached the lung parenchyma. The temperature of the cryoprobe tip reaches approximately a '130°C during freezing and approximately 20°C during thawing. After three freeze-thaw cycles, the cryoprobe was removed. Results No significant haemorrhage was bronchoscopically observed in the airways throughout the experiment. The chronological changes and spatial distribution of the temperature of the pulmonary tissue circumferential to the point of the cryoprobe were similar to those seen with transpleural cryoablation and the less than a '20°C thermal zone seemed to be established within a radius of at least 12 mm. The central destruction zone of alveolar structures was histologically similar to the thermal zone, while the conducting bronchus structure and the accompanying pulmonary artery were not severely affected. Conclusion Experimental transbronchial cryoablation with a rigid cryoprobe could effectively freeze and destroy peripheral lung alveoli without any significant immediate adverse effects. This may suggest the potential clinical application of transbronchial cryoablation for peripheral malignant lung lesions.

  • Imaging Findings of Atypical Type II Endoleak Through Vasa Vasorum After Abdominal Endovascular Aneurysm Repair

    Torikai H., Inoue M., Nakatsuka S., Tamura M., Yashiro H., Yoshitake A., Shimizu H., Jinzaki M.

    CardioVascular and Interventional Radiology （CardioVascular and Interventional Radiology)  41 （ 1 ） 186 - 190 2018.01

    ISSN  01741551

    　View Summary

    © 2017, Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE). A type II endoleak (T2EL) is the most common endoleak after endovascular aneurysm repair (EVAR), and a persistent T2EL has been occasionally associated with aneurysmal enlargement. Typical findings of a T2EL consist of an endoleak cavity with inflow and outflow arteries of aortic branch vessels. However, an atypical T2EL, in which hypertrophied vasa vasorum and enlargement of a thrombosed aneurysm are observed, has no endoleak cavity. We have seen three cases of continuous aortic aneurysmal growth after EVAR caused by atypical T2ELs without endoleak cavities through developed vasa vasorum. In this report, the imaging findings of selective angiography and dynamic computed tomography of these cases are reviewed.

  • 肺悪性腫瘍に対するCTガイド下凍結融解壊死療法

    NAKATSUKA SEISHI, KAWAMURA MASAFUMI, SUGIURA HIROAKI, NAKANO KEIKO, IZUMI YOTARO, KOBAYASHI KOICHI, KURIBAYASHI SACHIO

    臨床放射線 49 （ 4 ） 501-508 2004.04

    Research paper (scientific journal), Single Work

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Papers, etc., Registered in KOARA 【 Display / hide 】

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Reviews, Commentaries, etc. 【 Display / hide 】

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Presentations 【 Display / hide 】

  • Technical Aspect of Percutaneous Cryoablation for Pulmonary Malignancies.

    NAKATSUKA SEISHI, YASHIRO HIDEKI, SUGIURA HIROAKI, NAKANO KEIKO, KAWAMURA MASAFUMI, IZUMI YOTARO, HASHIMOTO SUBARU, KURIBAYASHI SACHIO, KOBAYASHI KOICHI

    World Conference of Cryomedicine 2004 (Tokyo) , 

    2004.11
    , 

    Oral presentation (general)

  • Percutaneous cryoablation for pulmonary malignancies under CT fluoroscopic guidance.

    NAKATSUKA SEISHI, SUGIURA HIROAKI, NAKANO KEIKO, KAWAMURA MASAFUMI, IZUMI YOTARO, JINNZAKI MASAHIRO, HASHIMOTO SUBARU, KURIBAYASHI SACHIO, KOBAYASHI KOICHI

    Annual Meeting of Cardiovascular and Interventional Radiological Society of Europe（CIRSE 2004） (Barcelona) , 

    2004.09
    , 

    Poster presentation

  • ３断面CT透視を用いた肺悪性腫瘍に対する経皮的凍結治療

    'NAKATSUKA SEISHI, SUGIURA HIROAKI, NAKANO KEIKO, KAWAMURA MASAFUMI, IZUMI YOUTAROU, HASHIMOTO SUBARU, KURIBAYASHI SACHIO, KOBAYASHI KOUICHI, WAKABAYASHI GOU, KITAJIMA MASAKI'

    第12回クリニカル・ビデオ・フォーラム (東京) , 

    2004.02
    , 

    Oral presentation (general)

  • ビデオシンポジウム　悪性腫瘍に対する凍結手術の実際　CT透視を用いた肺悪性腫瘍に対する経皮的凍結治療の実際

    'NAKATSUKA SEISHI, SUGIURA HIROAKI, NAKANO KEIKO, KAWAMURA MASAFUMI, IZUMI YOTARO, HASHIMOTO SUBARU, KURIBAYASHI SACHIO, KOBAYASHI KOUICHI, WAKABAYASHI GO, KITAJIMA MASAKI'

    第30回日本低温医学会総会 (札幌) , 

    2003.11
    , 

    Oral presentation (general), 日本低温医学会

  • CT透視下肺生検での術者の被曝-被曝軽減の工夫-

    'NAKATSUKA SEISHI, JINZAKI MASAHIRO, NAKANO KEIKO, SUGIURA HIROAKI, KURIBAYASHI SACHIO, KIKUCHI HIROZUMI, SUZUKI KATSUHISA, HASEGAWA MASAKAZU, IZUMI YOTARO, KAWAMURA MASAFUMI'

    第４回 肺生検研究会 (東京) , 

    2003.09
    , 

    Oral presentation (general)

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

  • 穿刺針先端圧解析による実質臓器の末梢胆管・脈管穿刺アプローチ技術の確立と普遍化

    2017.04
    -
    2020.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Principal investigator

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Awards 【 Display / hide 】

  • Certificate of Merit

    Hashimoto Subaru，Takeda Toshiaki，Nakatsuka Seishi，Sato Michihiro，Narimatsu Yoshiaki，Hiramatsu Kyoichi, 1997.12, Radiological Society of North America, The role of carbon dioxide intraarterial DSA in the management of hemorrhage

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Courses Taught 【 Display / hide 】

  • LECTURE SERIES, RADIOLOGY

    2024

  • LECTURE SERIES, INTERNAL MEDICINE (GASTROENTEROLOGY)

    2024

  • LECTURE SERIES, RADIOLOGY

    2023

  • LECTURE SERIES, INTERNAL MEDICINE (GASTROENTEROLOGY)

    2023

  • INTRODUCTION TO CLINICAL CLERKSHIPS

    2023

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