FullText URL fulltext.pdf
Author Takahashi, Yuka| Higaki, Fumiyo| Sugaya, Akiko| Asano, Yudai| Kojima, Katsuhide| Morimitsu, Yusuke| Akagi, Noriaki| Itoh, Toshihide| Matsui, Yusuke| Hiraki, Takao|
Keywords Photon-counting detector computed tomography Energy-integrating detectors Ear ossicles High-resolution imaging 3D
Note The version of record of this article, first published in Japanese Journal of Radiology, is available online at Publisher’s website: http://dx.doi.org/10.1007/s11604-023-01485-0|
Published Date 2023-08-27
Publication Title Japanese Journal of Radiology
Volume volume42
Issue issue2
Publisher Springer Science and Business Media LLC
Start Page 158
End Page 164
ISSN 1867-1071
NCID AA12375935
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2023
File Version publisher
PubMed ID 37633874
DOI 10.1007/s11604-023-01485-0
Web of Science KeyUT 001060337800001
Related Url isVersionOf https://doi.org/10.1007/s11604-023-01485-0
JaLCDOI 10.18926/AMO/66668
FullText URL 78_1_029.pdf
Author Kitayama, Takahiro| Tanaka, Takashi| Kanie, Yuichiro| Marukawa, Yohei| Kojima, Katsuhide| Tanaka, Takehiro| Takao, Soshi| Hiraki, Takao|
Abstract This retrospective study investigated whether necrotic lesions detected on a computed tomography (CT) scan are more regressive than non-necrotic lesions after methotrexate withdrawal in patients pathologically diagnosed with methotrexate-associated lymphoproliferative disorders (MTX-LPD). In total, 89 lesions extracted from 24 patients on CT scans were included in the analysis. All patients had been evaluated for the presence of necrosis within lesions via CT scan upon first suspicion of MTX-LPD (baseline CT scan). The percentage lesion size reduction between the baseline and initial follow-up CT scan was calculated. The association between necrosis within lesions and size changes was estimated via linear regression analyses using both crude and adjusted models. Necrosis was significantly more common in extranodal lesions (27 out of 30 lesions, 90%) than in nodal lesions (9 out of 59 lesions, 15%, p<0.001). In the crude model, the regression of necrotic lesions was 58.5% greater than that of non-necrotic lesions; the difference was statistically significant (p<0.001). Additionally, the longest diameter of necrotic lesions at the baseline CT scan was significantly greater than that of non-necrotic lesions (p<0.001). Based on the adjusted model, necrotic lesions showed 49.3% greater regression than non-necrotic lesions (p=0.017). Necrosis detected on a CT scan was found to be an independent predictor of regression after MTX withdrawal in patients with MTX-LPD.
Keywords methotrexate lymphoproliferative disorder computed tomography necrosis
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 29
End Page 36
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 38419312
Web of Science KeyUT 001203658200001
JaLCDOI 10.18926/AMO/66160
FullText URL 77_6_665.pdf
Author Sakurai, Atsunobu| Uka, Mayu| Iguchi, Toshihiro| Tomita, Koji| Matsui, Yusuke| Kakiuchi, Yoshihiko| Kuroda, Shinji| Fujiwara, Toshiyoshi| Hiraki, Takao|
Abstract We report the case details of a 65-year-old Japanese man with an omental abscess that was discovered 43 days after he underwent a laparoscopic proximal gastrectomy for gastric cancer. His chief complaint was mild abdominal pain that had persisted for several days. The abscess was diagnosed as a rare postoperative complication. We hesitated to perform a reoperation given the invasiveness of general anesthesia and surgery, plus the possibility of postoperative adhesions and because the patient’s general condition was stable and he had only mild abdominal pain. Percutaneous drainage using a 10.2-F catheter was performed with the patient under conscious sedation and computed tomography–fluoroscopy guidance, with no complications. After the procedure, the size of the abscess cavity was remarkably reduced, and 23 days later the catheter was withdrawn.
Keywords drainage omental abscess omental infarction proximal gastrectomy
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 665
End Page 669
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 38145942
Web of Science KeyUT 001164631200013
JaLCDOI 10.18926/AMO/66157
FullText URL 77_6_647.pdf
Author Kojima, Katsuhide| Takahashi, Yuka| Sugiyama, Soichi| Asano, Yudai| Okawa, Nanako| Makimoto, Satoko| Higaki, Fumiyo| Iguchi, Toshihiro| Hiraki, Takao|
Abstract A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.
Keywords hydrogel spacer prostate cancer radiotherapy pulmonary embolism
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 647
End Page 650
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 38145939
Web of Science KeyUT 001164631200010
FullText URL fulltext.pdf
Author Uka, Mayu| Iguchi, Toshihiro| Okawa, Nanako| Matsui, Yusuke| Tomita, Koji| Umakoshi, Noriyuki| Munetomo, Kazuaki| Gobara, Hideo| Araki, Motoo| Hiraki, Takao|
Keywords Kidney neoplasms Cryosurgery Image-guided
Note The version of record of this article, first published in Japanese Journal of Radiology, is available online at Publisher’s website: http://dx.doi.org/10.1007/s11604-022-01297-8|
Published Date 2022-06-21
Publication Title Japanese Journal of Radiology
Volume volume40
Issue issue11
Publisher Springer Science and Business Media LLC
Start Page 1201
End Page 1209
ISSN 1867-1071
NCID AA12375935
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2022
File Version publisher
PubMed ID 35727459
DOI 10.1007/s11604-022-01297-8
Web of Science KeyUT 000814035800002
Related Url isVersionOf https://doi.org/10.1007/s11604-022-01297-8
FullText URL fulltext.pdf
Author Tomita, Koji| Matsui, Yusuke| Uka, Mayu| Umakoshi, Noriyuki| Kawabata, Takahiro| Munetomo, Kazuaki| Nagata, Shoma| Iguchi, Toshihiro| Hiraki, Takao|
Keywords Ablation Liver Metastasis
Note The version of record of this article, first published in Japanese Journal of Radiology, is available online at Publisher’s website: http://dx.doi.org/10.1007/s11604-022-01335-5|
Published Date 2022-09-13
Publication Title Japanese Journal of Radiology
Volume volume40
Issue issue10
Publisher Springer Science and Business Media LLC
Start Page 1035
End Page 1045
ISSN 1867-1071
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2022
File Version publisher
PubMed ID 36097234
DOI 10.1007/s11604-022-01335-5
Web of Science KeyUT 000852956100003
Related Url isVersionOf https://doi.org/10.1007/s11604-022-01335-5
FullText URL fulltext.pdf
Author Matsui, Yusuke| Tomita, Koji| Uka, Mayu| Umakoshi, Noriyuki| Kawabata, Takahiro| Munetomo, Kazuaki| Nagata, Shoma| Iguchi, Toshihiro| Hiraki, Takao|
Keywords Ablation Lung Pulmonary Metastasis
Note The version of record of this article, first published in Japanese Journal of Radiology, is available online at Publisher’s website: http://dx.doi.org/10.1007/s11604-022-01302-0|
Published Date 2022-07-02
Publication Title Japanese Journal of Radiology
Volume volume40
Issue issue10
Publisher Springer Science and Business Media LLC
Start Page 1024
End Page 1034
ISSN 1867-1071
NCID AA12375935
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2022
File Version publisher
PubMed ID 35778630
DOI 10.1007/s11604-022-01302-0
Web of Science KeyUT 000819687400001
Related Url isVersionOf https://doi.org/10.1007/s11604-022-01302-0
FullText URL fulltext.pdf
Author Umakoshi, Noriyuki| Matsui, Yusuke| Tomita, Koji| Uka, Mayu| Kawabata, Takahiro| Iguchi, Toshihiro| Hiraki, Takao|
Keywords hepatocellular carcinoma extrahepatic metastases ablation therapy radiofrequency ablation microwave ablation cryoablation percutaneous ethanol injection
Published Date 2023-07-18
Publication Title Cancers
Volume volume15
Issue issue14
Publisher MDPI
Start Page 3665
ISSN 2072-6694
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2023 by the authors.
File Version publisher
PubMed ID 37509326
DOI 10.3390/cancers15143665
Web of Science KeyUT 001035192500001
Related Url isVersionOf https://doi.org/10.3390/cancers15143665
Title Alternative Non-vascular interventional radiology for lung cancer
FullText URL 134_145.pdf
Author Hiraki, Takao|
Keywords 肺癌(lung cancer) インターベンショナルラジオロジー(interventional radiology) 非血管系(non-vascular)
Publication Title Journal of Okayama Medical Association
Published Date 2022-12-01
Volume volume134
Issue issue3
Start Page 145
End Page 151
ISSN 0030-1558
Related Url isVersionOf https://doi.org/10.4044/joma.134.145
language Japanese
Copyright Holders Copyright (c) 2022 岡山医学会
File Version publisher
DOI 10.4044/joma.134.145
FullText URL fulltext20230418-06.pdf
Author Umakoshi, Noriyuki| Iguchi, Toshihiro| Matsui, Yusuke| Tomita, Koji| Uka, Mayu| Kawabata, Takahiro| Munetomo, Kazuaki| Nagata, Shoma| Gobara, Hideo| Araki, Motoo| Hiraki, Takao|
Keywords Renal cryoablation Transcatheter arterial embolization Chronic kidney disease
Note The version of record of this article, first published in Japanese Journal of Radiology, is available online at Publisher’s website: http://dx.doi.org/10.1007/s11604-023-01416-z|
Published Date 2023-04-01
Publication Title Japanese Journal of Radiology
Publisher Springer Science and Business Media LLC
ISSN 1867-1071
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2023
File Version publisher
PubMed ID 37002430
DOI 10.1007/s11604-023-01416-z
Web of Science KeyUT 000961195900001
Related Url isVersionOf https://doi.org/10.1007/s11604-023-01416-z
JaLCDOI 10.18926/AMO/64366
FullText URL 77_1_81.pdf
Author Tomita, Koji| Iguchi, Toshihiro| Matsui, Yusuke| Uka, Mayu| Nakata, Eiji| Hiraki, Takao|
Abstract Osteoid osteoma (OO) is a benign bone tumor that presents with nocturnal pain. Computed tomography (CT)- guided radiofrequency ablation (RFA) has been widely performed for OO, and major adverse events post-RFA are rare. We report a case of OO in the left navicular bone of a 15-year-old male. He underwent RFA for OO, and the pain improved temporarily. At the 1-month follow-up, the patient complained of left foot pain, and a CT examination revealed a fracture of the ablated navicular bone. Fractures are rare but must be taken into account after bone RFA.
Keywords osteoid osteoma radiofrequency ablation navicular bone fracture
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2023-02
Volume volume77
Issue issue1
Publisher Okayama University Medical School
Start Page 81
End Page 84
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36849150
Web of Science KeyUT 000952973200002
FullText URL fulltext.pdf
Author Yoshio, Kotaro| Ihara, Hiroki| Okamoto, Kazuhiro| Suzuki, Etsuji| Ogata, Takeshi| Sugiyama, Soichi| Nakamura, Keiichiro| Nagao, Shoji| Masuyama, Hisashi| Hiraki, Takao|
Keywords cervical cancer tumor size squamous cell carcinoma image-guided brachytherapy (IGBT) central shielding (CS)
Published Date 2022-07-05
Publication Title Journal Of Radiation Research
Publisher Oxford University Press on behalf of The Japanese Radiation Research Society and Japanese Society for Radiation Oncology
ISSN 0449-3060
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2022.
File Version publisher
PubMed ID 35791439
DOI 10.1093/jrr/rrac040
Web of Science KeyUT 000820941900001
Related Url isVersionOf https://doi.org/10.1093/jrr/rrac040
FullText URL fulltext.pdf
Author Iwamuro, Masaya| Kawai, Yusuke| Uka, Mayu| Matsui, Yusuke| Hiraki, Takao| Kawahara, Yoshiro| Okada, Hiroyuki|
Published Date 2022-04-07
Publication Title Case Reports In Gastrointestinal Medicine
Volume volume2022
Publisher Hindawi Ltd.
Start Page 9988216
ISSN 2090-6528
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2022 Masaya Iwamuro et al.
File Version publisher
PubMed ID 35433061
DOI 10.1155/2022/9988216
Web of Science KeyUT 000791234100001
Related Url isVersionOf https://doi.org/10.1155/2022/9988216
FullText URL fulltext.pdf
Author Higaki, Fumiyo| Inoue, Satoshi| Oda, Wakako| Matsusue, Eiji| Hiraki, Takao|
Keywords pial blood supply peritumoral brain edema arachnoid plane peritumoral flow void magnetic resonance imaging
Published Date 2022-04-08
Publication Title Acta Radiologica Open
Volume volume11
Issue issue4
Publisher Sage Publications Ltd.
ISSN 2058-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2022
File Version publisher
PubMed ID 35425642
DOI 10.1177/20584601221091208
Web of Science KeyUT 000780184200001
Related Url isVersionOf https://doi.org/10.1177/20584601221091208
FullText URL fulltext.pdf
Author Inai, Ryota| Nakahara, Ryuichi| Morimitsu, Yusuke| Akagi, Noriaki| Marukawa, Youhei| Matsushita, Toshi| Tanaka, Takashi| Tada, Akihiro| Hiraki, Takao| Nasu, Yoshihisa| Nishida, Keiichiro| Ozaki, Toshifumi| Kanazawa, Susumu|
Keywords Osteoporosis Bone density Tomography (x-ray computed) X-ray microtomography
Published Date 2021-01-28
Publication Title European Radiology Experimental
Volume volume4
Issue issue1
Publisher Springer nature
Start Page 4
ISSN 2509-9280
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s). 2020
File Version publisher
PubMed ID 31993864
DOI 10.1186/s41747-019-0135-0
Web of Science KeyUT 000705622700001
Related Url isVersionOf https://doi.org/10.1186/s41747-019-0135-0
FullText URL fulltext.pdf
Author Katsui, Kuniaki| Ogata, Takeshi| Sugiyama, Soichi| Yoshio, Kotaro| Kuroda, Masahiro| Hiraki, Takao| Kiura, Katsuyuki| Maeda, Yoshinobu| Toyooka, Shinichi| Kanazawa, Susumu|
Published Date 2021-06-04
Publication Title scientific reports
Volume volume11
Issue issue1
Publisher Nature Research
Start Page 11882
ISSN 2045-2322
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2021
File Version publisher
PubMed ID 34088965
DOI 10.1038/s41598-021-91449-z
Web of Science KeyUT 000678611200010
Related Url isVersionOf https://doi.org/10.1038/s41598-021-91449-z
FullText URL fulltext20210413_1.pdf
Author Tanaka, Takashi| Kawashima, Akira| Marukawa, Yohei| Kitayama, Takahiro| Masaoka, Yoshihisa| Kojima, Katsuhide| Iguchi, Toshihiro| Hiraki, Takao| Kanazawa, Susumu|
Keywords Hereditary renal tumor syndrome Von Hippel–Lindau disease Birt–Hogg–Dubé syndrome Tuberous sclerosis complex Hereditary leiomyomatosis and renal cell carcinoma syndrome
Note This is an Accepted Manuscript of an article published by Springer. This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s11604-021-01109-5|
Published Date 2021-3-23
Publication Title Japanese Journal of Radiology
Volume volume39
Publisher Springer Science and Business Media LLC
Start Page 619
End Page 632
ISSN 1867-1071
NCID AA12375935
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders ©Japan Radiological Society 2021
File Version author
PubMed ID 33759057
DOI 10.1007/s11604-021-01109-5
NAID 130008000092
Web of Science KeyUT 000631734600001
Related Url isVersionOf https://doi.org/10.1007/s11604-021-01109-5
FullText URL fulltext.pdf
Author Watanabe, Kenta| Katsui, Kuniaki| Sugiyama, Soichiro| Yoshio, Kotaro| Kuroda, Masahiro| Hiraki, Takao| Kiura, Katsuyuki| Maeda, Yoshinobu| Toyooka, Shinichi| Kanazawa, Susumu|
Keywords Clinical pathology Elderly Non-small cell lung carcinoma Radiosurgery Stereotactic body radiation therapy
Published Date 2021-02-23
Publication Title Radiation Oncology
Volume volume16
Issue issue1
Publisher BMC
Start Page 39
ISSN 1748-717X
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2021.
File Version publisher
PubMed ID 33622369
DOI 10.1186/s13014-021-01769-7
Web of Science KeyUT 000623175000001
Related Url isVersionOf https://doi.org/10.1186/s13014-021-01769-7
JaLCDOI 10.18926/AMO/61429
FullText URL 75_1_15.pdf
Author Katsui, Kuniaki| Ogata, Takeshi| Tada, Akihiro| Sugiyama, Soichi| Yoshio, Kotaro| Kuroda, Masahiro| Kiura, Katsuyuki| Maeda, Yoshinobu| Toyooka, Shinichi| Hiraki, Takao| Kanazawa, Susumu|
Abstract The aim of this study was to investigate whether volumetric positron emission tomography (PET) parameters are prognostic predictors in stage III non-small cell lung cancer patients receiving definitive concurrent chemo-radiotherapy (CCRT) with cisplatin/docetaxel. Cases involving definitive CCRT were reviewed retrospectively, and the maximum standardized uptake value, metabolic tumor volume (MTV) and total lesion glycolysis (TLG) were calculated. The relationships between these PET parameters and prognosis were analyzed. MTV and TLG were significant predictors of distant metastasis-free survival (DMFS) (p = 0.0003 and 0.0005, respectively) and progression-free survival (PFS) (p = 0.001 and 0.0007, respectively). The three-year DMFS rates in patients with low and high MTV were 13.3% and 64.6%, respectively, and the corresponding values in those with low and high TLG were 13.3% and 65.2%, respectively. The three-year PFS rates in patients with low and high MTV were 13.3% and 57.8%, respectively, and the corresponding values in patients with low and high TLG were 13.3% and 57.8%, respectively. However, MTV and TLG were not predictors of local control or overall sur-vival. We demonstrated that volumetric PET parameters were predictors of patients receiving definitive CCRT. Our findings contradict the findings of previous reports and warrant further research to validate them.
Keywords volumetric positron emission tomography parameters distant metastasis-free survival chemoradiotherapy cisplatin/docetaxel non-small cell lung cancer
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2021-02
Volume volume75
Issue issue1
Publisher Okayama University Medical School
Start Page 15
End Page 23
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2021 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 33649609
JaLCDOI 10.18926/AMO/61428
FullText URL 75_1_9.pdf
Author Gobara, Hideo| Yamamoto, Akira| Komakic, Toshiyuki| Kitayama, Toshiaki| Sakurai, Jun| Iguchi, Toshihiro| Matsui, Yusuke| Uka, Mayu| Tomita, Koji| Hiraki, Takao| Kanazawa, Susumu|
Abstract To assess the feasibility of needle tract ablation in liver tissue in ex vivo and in vivo animal models using a cryo-probe and electrosurgical device. The experimental device is made by inserting a cryoprobe through an intro-ducer sheath for insulation, with 2-cm of probe tip projecting out. A beagle liver was punctured by the device, and electric current was applied at 30-W with the electrosurgical knife touching the non-insulated device base. The discolored area of cut surface along the device was evaluated in 5 application-time groups (5 , 10 , 15 , 20, or 25 seconds). An ex vivo experiment was performed to determine an ablation algorithm with an appropriate application time by comparison with radiofrequency ablation (RFA) results. Thereafter, an in vivo experiment was performed to verify the algorithm’s feasibility. In the ex vivo model, the cut surface demonstrated different amounts of discolored area according to the application time. The total discolored area in the 20-seconds group was similar to that by RFA. In the in vivo model, the liver did not bleed, the total discolored area was similar to that ex vivo, and coagulation necrosis was confirmed by photomicrograph. Needle tract ablation can be per-formed using the experimental device and electrosurgical device.
Keywords needle tract ablation cryoablation electrosurgical device animal liver
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2021-02
Volume volume75
Issue issue1
Publisher Okayama University Medical School
Start Page 9
End Page 14
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2021 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 33649608