Updated on 2022/03/29

写真a

 
KOMADA Tomohiro
 
Organization
Nagoya University Hospital Radiology Lecturer of hospital
Title
Lecturer of hospital
Contact information
メールアドレス

Degree 1

  1. 医学博士 ( 2009.3   名古屋大学 ) 

Research Interests 2

  1. Radiology

  2. Interventional Radiology

Research Areas 1

  1. Life Science / Radiological sciences

Research History 3

  1. 名古屋大学医学部附属病院放   放射線科   病院講師

    2021.1

  2. Nagoya University   Nagoya University Hospital Radiology   Assistant Professor

    2014.4 - 2020.12

  3. Nagoya University   Nagoya University Hospital   Assistant professor of hospital

    2013.4 - 2014.3

Education 1

  1. Nagoya University   Graduate School, Division of Medical Sciences

    2005.4 - 2009.3

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    Country: Japan

Professional Memberships 3

  1. 日本医学放射線学会

  2. Japanese Society of Interventional Radiology

  3. JAPANESE SOCIETY OF NUCLEAR MEDICINE

 

Papers 20

  1. Balloon-Occluded Retrograde Transvenous Obliteration for Fundal Gastric Variceal Bleeding in a Small Child. Reviewed International journal

    Tomohiro Komada, Kojiro Suzuki, Kazuo Oshima, Masaya Matsushima, Ken Nagasaka, Shinji Naganawa

    Journal of vascular and interventional radiology : JVIR   Vol. 30 ( 10 ) page: 1624 - 1625   2019.10

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    Authorship:Lead author   Language:English  

    DOI: 10.1016/j.jvir.2019.06.022

    Web of Science

    PubMed

  2. Efficacy of percutaneous transhepatic portal vein embolization using gelatin sponge particles and metal coils Reviewed International journal

    Tomohiro Komada, Kojiro Suzuki, Takashi Mizuno, Tomoki Ebata, Masaya Matsushima, Shinji Naganawa, Masato Nagino

    Acta Radiologica Open   Vol. 7 ( 4 ) page: 2058460118769687 - 205846011876968   2018.4

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:SAGE Publications  

    Background: Percutaneous transhepatic portal vein embolization (PTPE) can increase the future liver remnant (FLR) volume before extended liver resection; however, there is no current consensus regarding the best embolic material for PTPE. Purpose: To evaluate the efficacy of PTPE using gelatin sponge particles and coils. Material and Methods: The medical records of 136 patients who underwent PTPE using gelatin sponge particles and metal coils were retrospectively reviewed. We evaluated the procedural details, liver volume on CT, and clinical status before and after PTPE. Results: The mean FLR volume increased significantly from 390 ± 147 cm3 to 508 ± 141 cm3 (P < 0.001). A mean of 22.1 ± 9.4 days after PTPE, the mean increase in the ratio of FLR volume to total liver volume was 9.4 ± 6.5%. Complications related to PTPE occurred in five patients, including arterial damage (n = 4) and biloma (n = 1). The white blood cell count and C-reactive protein level increased significantly and then returned to baseline within seven days. Aspartate aminotransferase and alanine aminotransferase showed no significant changes. Fever (defined by the Common Terminology Criteria for Adverse Events v4.0) was reported in 74 patients (54%), but it was generally mild (Grade 1/2; n = 72). None of the patients experienced severe complications that required cancellation of surgery. Conclusion: PTPE with gelatin sponge particles and coils may impose low physical stress on patients and is a safe method of inducing a significant increase of FLR.

    DOI: 10.1177/2058460118769687

    Web of Science

    PubMed

    Other Link: http://journals.sagepub.com/doi/full-xml/10.1177/2058460118769687

  3. Magnetic resonance imaging of cardiac sarcoidosis: an evaluation of the cardiac segments and layers that exhibit late gadolinium enhancement Reviewed

    Tomohiro Komada, Kojiro Suzuki, Hiroaki Ishiguchi, Hisashi Kawai, Takahiro Okumura, Akihiro Hirashiki, Shinji Naganawa

    Nagoya Journal of Medical Science   Vol. 78 ( 4 ) page: 437 - 446   2016.11

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:NAGOYA UNIV, SCH MED  

    Cardiac sarcoidosis (CS) can cause sudden death, which is the leading cause of mortality in patients with sarcoidosis in Japan. However, it is difficult to diagnose CS because of the lack of a sensitive diagnostic method for the condition. Late gadolinium-enhanced cardiac magnetic resonance (MR) imaging demonstrates improved sensitivity for diagnosing CS. Therefore, it is important to know the late gadolinium-enhancement (LGE) characteristics of CS on cardiac MR images in order to diagnose CS accurately. In this study, we investigated the most common sites of LGE on cardiac MR images in CS. Late gadolinium-enhanced MR images of 9 consecutive patients with CS (obtained between August 2009 and July 2015) were reviewed by two radiologists. The distribution of LGE was evaluated using the American Heart Association 17-segment model of the left ventricle. The LGE in each segment was also classified into 4 patterns according to the myocardial layer in which it occurred (the subepicardial, subendocardial, intramural, and transmural layer patterns). All 9 patients exhibited LGE in their left ventricle, and 70 of 153 (46%) myocardial segments were enhanced. All of the patients displayed LGE in the basal septal wall. The patients' LGE layer patterns were as follows: subepicardial: 40% (28/70), intramural: 30% (21/70), subendocardial: 16% (11/70), and transmural: 14% (10/70). The basal septum wall and subepicardial layer often exhibit LGE on cardiac MR images in CS patients. LGE can be observed in other segments and layers in some cases.

    DOI: 10.18999/nagjms.78.4.437

    Web of Science

    Scopus

    PubMed

  4. Contrast-enhanced MR imaging of metastatic brain tumor at 3 tesla: utility of T(1)-weighted SPACE compared with 2D spin echo and 3D gradient echo sequence. Reviewed

    Komada T, Naganawa S, Ogawa H, Matsushima M, Kubota S, Kawai H, Fukatsu H, Ikeda M, Kawamura M, Sakurai Y, Maruyama K

    Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine   Vol. 7 ( 1 ) page: 13 - 21   2008

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    Authorship:Lead author  

    DOI: 10.2463/mrms.7.13

    PubMed

  5. Natural History of Unruptured Visceral Artery Aneurysms Due to Segmental Arterial Mediolysis and Efficacy of Transcatheter Arterial Embolization: A Retrospective Multiinstitutional Study in Japan. Reviewed International journal

    Masashi Shimohira, Hiroshi Kondo, Yukihisa Ogawa, Hiroshi Kawada, Masamichi Koganemaru, Osamu Ikeda, Akira Yamamoto, Tomohiro Komada, Shuichi Tanoue, Noriaki Muraoka, Masato Tanikake, Sadao Hayashi, Satoshi Yamamoto, Takeshi Sato, Kimiyoshi Mizunuma, Fumikiyo Ganaha, Yu Murakami, Tsuneo Ishiguchi

    AJR. American journal of roentgenology   Vol. 216 ( 3 ) page: 691 - 697   2021.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    OBJECTIVE. The purpose of this study was to clarify the natural history of unruptured visceral artery aneurysms due to segmental arterial mediolysis and the efficacy of transcatheter arterial embolization. MATERIALS AND METHODS. Patients with a pathologic or clinical diagnosis of visceral artery aneurysms due to segmental arterial mediolysis between 2005 and 2015 were enrolled. For patients with clinical diagnoses, images were collected and assessed by central radiologic review. To clarify the natural history of unruptured aneurysms, the morphologic changes were assessed. The efficacy and safety of transcatheter arterial embolization for aneurysms due to segmental arterial mediolysis were evaluated. RESULTS. Forty-five patients with 123 aneurysms due to segmental arterial mediolysis were enrolled. Among the 123 aneurysms, 70 unruptured aneurysms were evaluated for natural history. Forty-five of the 70 (64%) aneurysms had no change in morphology. Among the other 25 aneurysms, nine (13% of the 70) were reduced in size, 13 (19%) disappeared, and three (4%) were newly found at follow-up. Aneurysms of the middle colic artery were ruptured in 10 of 11 (91%) cases. Transcatheter arterial embolization was performed on 45 aneurysms and was successful in all cases but caused slight arterial injury in three cases (6.7%). CONCLUSION. At initial diagnosis, unruptured aneurysms due to segmental arterial mediolysis are likely to be stable or to resolve, but the risk of rupture of aneurysms of the middle colic artery appears high. Transcatheter arterial embolization is a useful treatment, but careful manipulation is necessary.

    DOI: 10.2214/AJR.19.22547

    PubMed

  6. Simplification of balloon-occluded retrograde transcatheter obliteration procedure using a coaxial double balloon catheter compared with a single-balloon catheter Reviewed

    Yoji Ishizu, Masatoshi Ishigami, Takashi Honda, Teiji Kuzuya, Takanori Ito, Tomohiro Komada, Mitsuhiro Fujishiro

    Japanese Journal of Radiology   Vol. 39 ( 3 ) page: 296 - 302   2021.3

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s11604-020-01060-x

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    PubMed

    Other Link: http://link.springer.com/article/10.1007/s11604-020-01060-x/fulltext.html

  7. A case of stent-graft implantation for postpancreaticoduodenectomy hemorrhage in a patient with a reconstructed gastric tube. Reviewed International journal

    Tomohiro Komada, Yasushi Tachi, Ken Nagasaka, Suguru Yamada, Masaya Matsushima, Yutaro Sakaki, Shinji Naganawa

    Radiology case reports   Vol. 15 ( 12 ) page: 2710 - 2713   2020.12

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    In patients with a reconstructed gastric tube, the right gastroepiploic artery is a very important feeding artery of the tube, which must be preserved when performing a pancreaticoduodenectomy. A 76-year-old man with a reconstructed gastric tube underwent pancreaticoduodenectomy for distal bile duct carcinoma. On postoperative day 8, he had an arterial hemorrhage from a drain, apparently from a ligation of the anterior superior duodenal artery. He, therefore, underwent stent-graft placement in the gastroduodenal artery. The stent-grafts were temporarily occluded, and the gastric tube was necrotizing. However, thrombolytic therapy allowed the stent-grafts to reopen and prevented gastric tube necrosis. We believe our case of stent-graft implantation in the gastroduodenal artery is the first of this kind to successfully prevent lethal necrosis of the gastric tube.

    DOI: 10.1016/j.radcr.2020.10.021

    PubMed

  8. ロボット支援前立腺全摘除術後の難治性乳び腹水に対してリンパ管塞栓術が奏功した一例

    兵藤 良太, 山田 恵一郎, 堀口 瞭太, 伊藤 準, 松島 正哉, 駒田 智大, 大脇 貴之, 竹原 康雄, 長縄 慎二

    日本インターベンショナルラジオロジー学会雑誌   Vol. 35 ( Suppl. ) page: 290 - 290   2020.8

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    Language:Japanese   Publisher:(一社)日本インターベンショナルラジオロジー学会  

  9. Evaluation of segment 4 portal vein embolization added to right portal vein for right hepatic trisectionectomy: a retrospective propensity score-matched study. Reviewed

    Jun Ito, Tomohiro Komada, Kojiro Suzuki, Masaya Matsushima, Masahiro Nakatochi, Yumiko Kobayashi, Tomoki Ebata, Shinji Naganawa, Masato Nagino

    Journal of hepato-biliary-pancreatic sciences   Vol. 27 ( 6 ) page: 299 - 306   2020.6

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    Language:English  

    BACKGROUND: Adding segment 4 (S4) portal vein embolization (PVE) to right PVE before right hepatic trisectionectomy is controversial. We retrospectively examined the effect of S4 PVE on segments 2 and 3 (S2+3) hypertrophy. METHODS: We reviewed patients with biliary carcinoma who underwent right PVE with (R3PVE) or without (R2PVE) S4 PVE using gelatin sponge particles and coils (2010-2019). Propensity score matching balanced the cohort for baseline characteristics, including total liver volume and S2+3 volume before PVE. We compared the groups regarding the S2+3 volume changes after PVE. RESULTS: Of 178 enrolled patients, 38 underwent R3PVE for right hepatic trisectionectomy and 140 underwent R2PVE for right hepatectomy. Twenty-eight patients from each group were respectively matched. The median absolute volume increase in (146 cm3 vs 70 cm3 ), hypertrophy rate of (52.4% vs 32.3%), and kinetic growth rate of (3.1 %/week vs 2.0 %/week) S2+3 were significantly higher in the R3PVE group than in the R2PVE group. In the pre-matched cohort, the rate of posthepatectomy liver failure and postoperative hospital stay did not significantly differ between the patients who underwent right hepatic trisectionectomy and right hepatectomy. CONCLUSION: R3PVE increased the S2+3 volume more effectively than R2PVE in patients with biliary carcinoma.

    DOI: 10.1002/jhbp.723

    Web of Science

    PubMed

  10. Development of Three-Dimensional Printed Compensator for Improvement of Dose Distribution in Boron Neutron Capture Therapy: A Preliminary Study

    Kamomae T., Sakurai Y., Oita M., Takata T., Niimi T., Matsumura T., Saito T., Komada T., Kato K., Itoh Y., Naganawa S.

    MEDICAL PHYSICS   Vol. 46 ( 6 ) page: E411 - E411   2019.6

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  11. Portal Vein Bleeding after Pancreatectomy: Diagnosis and Stent Graft Repair - A Consecutive Case Series Reviewed

    Suzuki Kojiro, Ebata Tomoki, Komada Tomohiro, Matsushima Masaya, Mizuno Takashi, Igami Tsuyoshi, Sugawara Gen, Yokoyama Yukihiro, Naganawa Shinji, Nagino Masato

    JOURNAL OF THE PANCREAS   Vol. 18 ( 4 ) page: 339-344   2017.7

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    Language:English  

  12. Portal Vein Bleeding after Pancreatectomy: Diagnosis and Stent Graft Repair - A Consecutive Case Series

    Suzuki Kojiro, Ebata Tomoki, Komada Tomohiro, Matsushima Masaya, Mizuno Takashi, Igami Tsuyoshi, Sugawara Gen, Yokoyama Yukihiro, Naganawa Shinji, Nagino Masato

    JOURNAL OF THE PANCREAS   Vol. 18 ( 4 ) page: 339-344   2017.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    Web of Science

  13. Pancreatic neuroendocrine tumors containing areas of iso- or hypoattenuation in dynamic contrast-enhanced computed tomography: Spectrum of imaging findings and pathological grading Reviewed

    Ryota Hyodo, Kojiro Suzuki, Hiroshi Ogawa, Tomohiro Komada, Shinji Naganawa

    EUROPEAN JOURNAL OF RADIOLOGY   Vol. 84 ( 11 ) page: 2103 - 2109   2015.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER IRELAND LTD  

    Purpose: To evaluate dynamic contrast-enhanced computed tomography (CT) features of pancreatic neuroendocrine tumors (PNETs) containing areas of iso- or hypoattenuation and the relationship with pathological grading.
    Materials and Methods: Between June 2006 and March 2014,61 PNETs in 58 consecutive patients (29 male, 29 female; median-age 55 years), which were surgically diagnosed, underwent preoperative dynamic contrast-enhanced CT. PNETs were classified based on contrast enhancement patterns in the pancreatic phase: iso/hypo-PNETs were defined as tumors containing areas of iso- or hypoattenuation except for cystic components, and hyper-PNETs were tumors showing hyperattenuation over the whole area. CT findings and contrast-enhancement patterns of the tumors were evaluated retrospectively by two radiologists and compared with the pathological grading.
    Results: Iso/hypo-PNETs comprised 26 tumors, and hyper-PNETs comprised 35 tumors. Not only hyperPNETs but also most iso/hypo-PNETs showed peak enhancement in the pancreatic phase and a washout from the portal venous phase to the delayed phase. Iso/hypo-PNETs showed larger tumor size than the hyper-PNETs (mean, 3.7 cm vs. 1.6 cm; P&lt; 0.001), and were significantly correlated with unclear tumor margins (n= 4 vs. n= 0; P = 0.029), the existence of cystic components (n=10 vs. n= 3; P = 0.006), intratumoral blood vessels in the early arterial phase (n= 13 vs. n= 3; P&lt; 0.001), and a smooth rim enhancement in the delayed phase (n= 12 vs. n= 6; P= 0.019). Iso/hypo-PNETs also showed significantly higher pathological grading (WHO 2010 classification; iso/hypo, G1 = 14, G2 = 11, G3 = 1; hyper, G1 =34, G2 = 1; P&lt; 0.001).
    Conclusion: PNETs containing iso/hypo-areas showed a rapid enhancement pattern as well as hyperPNETs, various radiological features and higher malignant potential. (C) 2015 Elsevier Ireland Ltd. All rights reserved.

    DOI: 10.1016/j.ejrad.2015.08.014

    Web of Science

    PubMed

  14. Stent-graft treatment for extrahepatic portal vein hemorrhage after pancreaticoduodenectomy. Reviewed

    Suzuki K, Igami T, Komada T, Mori Y, Yokoyama Y, Ebata T, Naganawa S, Nagino M

    Acta radiologica open   Vol. 4 ( 6 ) page: 2058460115589338   2015.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1177/2058460115589338

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    PubMed

  15. Assessment of percutaneous transhepatic portal vein embolization with portal vein stenting for perihilar cholangiocarcinoma with severe portal vein stenosis Reviewed

    Ryota Hyodo, Kojiro Suzuki, Tomoki Ebata, Tomohiro Komada, Yoshine Mori, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Shinji Naganawa, Masato Nagino

    Journal of Hepato-Biliary-Pancreatic Sciences   Vol. 22 ( 4 ) page: 310 - 315   2015.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SPRINGER JAPAN KK  

    Background The aim of the present study was to assess the clinical efficiency of portal vein (PV) stenting when performed with preoperative percutaneous transhepatic portal vein embolization (PTPVE) in patients with severe PV stenosis due to tumor invasion.
    Methods Between 2007 and 2013, four consecutive patients (one male, three females; mean age, 52 years; age range, 25-73 years) with perihilar cholangiocarcinoma and PV stenosis underwent PTPVE and PV stenting. Patients were analyzed with regard to the procedure, hypertrophy of the future remnant liver (FRL), and plasma clearance rate of indocyanine green by the FRL (ICGK-F). Further, the %FRL volume increase in PTPVE was compared between the stenting group and the usual PTPVE group who have perihilar cholangiocarcinomas without PV stenosis.
    Results Preoperative PTPVE with PV stenting was successfully performed and portal flow to the FRL improved after stenting in all four patients. The % FRL volume increase was 18-60% (mean, 34%) in the stenting group and was 12-51% (mean, 21%) in the usual PTPVE group. The ICGK-F value after PTPVE exceeded 0.05 in all four patients. All patients achieved R0 resection.
    Conclusions Preoperative PTPVE with PV stenting appears to be feasible in cases of severe PV tumor invasion and stenosis. This procedure may allow a broader indication for surgery.

    DOI: 10.1002/jhbp.200

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    PubMed

  16. Solitary fibrous tumors in the extremities: imaging findings for six patients.

    Hyodo R, Komada T, Takada A, Kawai H, Ito S, Nishida Y, Naganawa S

    Nagoya journal of medical science   Vol. 77 ( 1-2 ) page: 167 - 78   2015.2

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    PubMed

  17. Diagnostic value of SPIO-mediated breath-hold, black-blood, fluid-attenuated, inversion recovery (BH-BB-FLAIR) imaging in patients with hepatocellular carcinomas.

    Matsushima M, Naganawa S, Ikeda M, Itoh S, Ogawa H, Komada T, Ishigaki S, Kawai H, Suzuki K, Satake H, Iwano S.

    Magn Reson Med Sci.   Vol. 9 ( 2 ) page: 49-58   2010.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  18. Stent-Graft Treatment for Bleeding Superior Mesenteric Artery Pseudoaneurysm After Pancreaticoduodenectomy Reviewed

    Kojiro Suzuki, Yoshine Mori, Tomohiro Komada, Masaya Matsushima, Toyohiro Ota, Shinji Naganawa

    CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY   Vol. 32 ( 4 ) page: 762 - 766   2009.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SPRINGER  

    We report two cases of intraperitoneal bleeding from superior mesenteric artery (SMA) pseudoaneurysm after pancreaticoduodenectomy for pancreatic head carcinoma. In both cases, a stent-graft was deployed on the main SMA to exclude pseudoaneurysm and to preserve blood flow to the bowel. Bleeding stopped after the procedure. One patient was able to be discharged but died from carcinoma recurrence 4 months later. The other patient died of sepsis and stent-graft infection 5 months later. These patients remained free of intraperitoneal rebleeding during the follow-up period.

    DOI: 10.1007/s00270-009-9502-1

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    PubMed

  19. Endovascular Management of Ruptured Pancreaticoduodenal Artery Aneurysms Associated with Celiac Axis Stenosis Reviewed

    Kojiro Suzuki, Yasushi Tachi, Shinji Ito, Kunihiro Maruyama, Yoshine Mori, Tomohiro Komada, Masaya Matsushima, Toyohiro Ota, Shinji Naganawa

    CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY   Vol. 31 ( 6 ) page: 1082 - 1087   2008.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SPRINGER  

    The purpose of this study was to assess the efficacy of transcatheter arterial embolization for ruptured pancreaticoduodenal artery (PDA) aneurysms associated with celiac axis stenosis (CS). Seven patients (four men and three women; mean age, 64; range, 43-84) were treated with transcatheter arterial embolization between 2002 and 2007. They were analyzed with regard to the clinical presentation, radiological finding, procedure, and outcome. All patients presented with sudden epigastric pain or abdominal discomfort. Contrast-enhanced CT showed a small aneurysm and retroperitoneal hematoma around the pancreatic head in all patients. The aneurysms ranged from 0.3 to 0.9 cm in size. In one patient, two aneurysms were detected. The aneurysms were located in the pancreaticoduodenal artery (n = 5) and the dorsal pancreatic artery (n = 3). Embolization was performed with microcoils in all aneurysms (n = 8). N-Butyl 2-cyanoacrylate (n = 1) and gelatine particle (n = 1) were also used. Complete occlusion was achieved in four patients. In the other three patients, a significantly reduced flow to the aneurysm remained at final angiography. However, these aneurysms were thrombosed on follow-up CT within 2 weeks. And there was no recurrence of the symptoms and bleeding during follow-up (mean, 28 months; range, 5-65 months) in all patients. In conclusion, transcatheter arterial embolization for PDA aneurysms associated with CS is effective. Significant reduction of the flow to the aneurysm at final angiography may be predictive of future thrombosis.

    DOI: 10.1007/s00270-008-9343-3

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  20. Contrast-enhanced MR imaging of the brain using T1-weighted FLAIR with BLADE compared with a conventional spin-echo sequence. Reviewed

    Naganawa S, Satake H, Iwano S, Kawai H, Kubota S, Komada T, Kawamura M, Sakurai Y, Fukatsu H

    European radiology   Vol. 18 ( 2 ) page: 337 - 342   2008.2

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MISC 4

  1. 画像診断と病理 骨芽細胞腫

    駒田 智大, 岩野 信吾, 長縄 慎二, 新井 英介, 西田 佳弘, 下山 芳江

    画像診断   Vol. 39 ( 1 ) page: 4 - 5   2018.12

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    Language:Japanese   Publisher:(株)学研メディカル秀潤社  

  2. 成人期に診断された左室心筋緻密化障害の2例

    馬越 弘泰, 駒田 智大, 長縄 慎二

    映像情報Medical   Vol. 48 ( 6 ) page: 50 - 51   2016.6

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    Language:Japanese   Publisher:産業開発機構(株)  

  3. 【胆膵疾患における血管系IVR】総論 胆膵疾患における血管系IVR

    鈴木 耕次郎, 馬越 弘泰, 長坂 憲, 石口 裕章, 駒田 智大, 森 芳峰, 長縄 慎二

    胆と膵   Vol. 37 ( 5 ) page: 419 - 425   2016.5

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    Language:Japanese   Publisher:医学図書出版(株)  

    集学的治療として血管系IVRを積極的に活用することで、胆膵疾患における外科的、内科的治療と緩和医療の幅を広げることが可能となる。胆膵悪性腫瘍の外科手術では大量肝切除や膵切除など侵襲性の高い手術が多く、術前に経皮経肝門脈塞栓術や血流改変術を行うことで術後合併症の頻度を軽減し、より安全に手術を施行できる。また術後の動脈出血も動脈塞栓術やステントグラフト留置術により低侵襲な止血処置が可能である。門脈狭窄が原因の門脈圧亢進症や消化管出血では、門脈ステント留置術で症状緩和が得られる。血管系IVRは腫瘍性病変に限らず、膵炎に伴う仮性動脈瘤の動脈塞栓術や重症膵炎に対する薬物動注療法でも効力を発揮する。(著者抄録)

  4. 【肝胆膵領域における術前ストラテジー】手技各論 術前門脈枝塞栓術の実際 経皮的アプローチ

    鈴木 耕次郎, 江畑 智希, 駒田 智大, 森 芳峰, 水野 隆史, 菅原 元, 伊神 剛, 横山 幸浩, 梛野 正人

    外科   Vol. 76 ( 11 ) page: 1260 - 1264   2014.11

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    Language:Japanese   Publisher:(株)南江堂  

    経皮的アプローチの門脈枝脈塞栓術(percutaneous trans-hepatic portal vein embolization:PTPE)を施行するうえで重要なことは,(1)穿刺肝葉の選択,(2)超音波ガイド下の門脈枝穿刺,(3)門脈造影,(4)塞栓方法である.超音波検査とCTで門脈の走行と分岐形態を前もって把握し,これらを十分理解すればPTPEは安全に施行可能である.本稿では同側穿刺法によるPTPEの手技上のポイントを中心に,PTPEについて概説した.(著者抄録)

    Other Link: https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2014&ichushi_jid=J00393&link_issn=&doc_id=20141029130010&doc_link_id=issn%3D0016-593X%26volume%3D76%26issue%3D11%26spage%3D1260&url=http%3A%2F%2Fwww.pieronline.jp%2Fopenurl%3Fissn%3D0016-593X%26volume%3D76%26issue%3D11%26spage%3D1260&type=PierOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00005_2.gif

KAKENHI (Grants-in-Aid for Scientific Research) 5

  1. 治療抵抗性致死的不整脈に対する定位放射線治療の研究

    Grant number:21K07725  2021.4 - 2026.3

    科学研究費助成事業  基盤研究(C)

    川村 麻里子, 因田 恭也, 駒田 智大

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    Authorship:Coinvestigator(s) 

    器質的心疾患に伴う心室頻拍(VT)はしばしば難治性である。国外を中心に、この難治性なVTに対する放射線を用いた非侵襲的アブレーション治療の臨床試験が行われ、短期的には良好な結果が報告されている。本研究では海外での研究成果を基盤に、国内の診療体制でも実現可能な方法へ変換し、高精度定位放射線治療によるアブレーション治療技術を開発するものである。本治療が本邦でも施行可能となることで、現在治療法がなく、突然死の恐怖と日々戦っている患者の希望となると確信している。

  2. A new strategy of IVR for extended hepatic resection incorporating evaluation of intrahepatic portal collateral tracts and hepatic vein embolization

    Grant number:21K07562  2021.4 - 2024.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Authorship:Principal investigator 

    Grant amount:\3380000 ( Direct Cost: \2600000 、 Indirect Cost:\780000 )

  3. Development of Rupture-Risk-Prediction System for Aortic Aneurysm Using Fluid&#8211;Structure Interaction Analysis.

    Grant number:21H02868  2021.4 - 2024.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s) 

  4. An attempt to create a blood vessel model with visceral aneurysm by 3D printer

    Grant number:17K16432  2017.4 - 2021.3

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    Authorship:Principal investigator 

    Grant amount:\2730000 ( Direct Cost: \2100000 、 Indirect Cost:\630000 )

  5. MR strategies to solve problems after endovascular aortic repair.

    Grant number:17K10398  2017.4 - 2020.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    Takehara Yasuo

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    Authorship:Coinvestigator(s) 

    Endovascular aneurysm repair (EVAR) has become a viable alternative to conventional surgical open repair owing to its perioperative survival benefit; however, EVAR is associated with a unique complication called endoleak (EL), which continues to perfuse and pressurize the aneurysm sac and cause aneurysm enlargement and rupture.
    Type I and type III endoleak were more detectable with MR angiography and streamline analysis with 4D Flow within the aneurysm. A comprehensive analysis of concurrent multiple T2EL vessels using 4D-flow MRI may enable prediction of the sac expansion after EVAR by larger amplitude of the flow velocity in the branch arteries.