| Author | Nakashima, Masahiro| Fukui, Ryohei| Sugimoto, Seiichiro| Iguchi, Toshihiro| |
|---|---|
| Keywords | Chronic lung allograft dysfunction Lung transplantation Single photon emission computed tomography Deep learning Convolutional neural network |
| Note | 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/s12194-024-00853-3| This fulltext file will be available in Oct. 2025.| |
| Published Date | 2024-10-23 |
| Publication Title | Radiological Physics and Technology |
| Publisher | Springer Science and Business Media LLC |
| ISSN | 1865-0333 |
| NCID | AA12236881 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © The Author(s), under exclusive licence to Japanese Society of Radiological Technology and Japan Society of Medical Physics 2024 |
| File Version | author |
| PubMed ID | 39441494 |
| DOI | 10.1007/s12194-024-00853-3 |
| Related Url | isVersionOf https://doi.org/10.1007/s12194-024-00853-3 |
| FullText URL | fulltext.pdf |
|---|---|
| Author | Kajita, Soichiro| Iguchi, Toshihiro| Matsui, Yusuke| Tomita, Koji| Uka, Mayu| Umakoshi, Noriyuki| Kawabata, Takahiro| Munetomo, Kazuaki| Hiraki, Takao| |
| Keywords | Biopsy Imaging Complication Renal neoplasms |
| 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/s11604-023-01509-9| |
| Published Date | 2023-11-22 |
| Publication Title | Japanese Journal of Radiology |
| Volume | volume42 |
| Issue | issue4 |
| Publisher | Springer Science and Business Media LLC |
| Start Page | 398 |
| End Page | 405 |
| 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 | 37991654 |
| DOI | 10.1007/s11604-023-01509-9 |
| Web of Science KeyUT | 001106454600001 |
| Related Url | isVersionOf https://doi.org/10.1007/s11604-023-01509-9 |
| FullText URL | fulltext.pdf |
|---|---|
| Author | Iguchi, Toshihiro| Matsui, Yusuke| Toji, Tomohiro| Sakurai, Jun| Tomita, Koji| Uka, Mayu| Umakoshi, Noriyuki| Kawabata, Takahiro| Munetomo, Kazuaki| Mitsuhashi, Toshiharu| Hiraki, Takao| |
| Keywords | Biopsy Kidney Tumor Computed tomography Ultrasound |
| 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/s11604-023-01496-x| |
| Published Date | 2023-10-14 |
| Publication Title | Japanese Journal of Radiology |
| Volume | volume42 |
| Issue | issue3 |
| Publisher | Springer Science and Business Media LLC |
| Start Page | 319 |
| End Page | 325 |
| 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 | 37833443 |
| DOI | 10.1007/s11604-023-01496-x |
| Web of Science KeyUT | 001086535200001 |
| Related Url | isVersionOf https://doi.org/10.1007/s11604-023-01496-x |
| JaLCDOI | 10.18926/AMO/66916 |
|---|---|
| FullText URL | 78_2_135.pdf |
| Author | Higaki, Fumiyo| Morimitsu, Yusuke| Iguchi, Toshihiro| Saito, Hayato| Takaki, Haruhiko| Nakagoshi, Ayako| Wada, Maki| Uka, Mayu| Akagi, Noriaki| Mitsuhashi, Toshiharu| Matsui, Yusuke| Hiraki, Takao| |
| Abstract | This study aimed to evaluate the potential reduction in contrast medium utilization using photon-counting detector computed tomography (PCD-CT). One PCD-CT scan (CT1) and three conventional (non-PCD-CT) CT scans (CT2-CT4) were performed using a multi-energy CT phantom that contained eight rods with different iodine concentrations (0.2, 0.5, 1, 2, 5, 10, 15, and 20 mg/ml). The CT values of the seven groups (CT1 for 40, 50, 60, and 70 keV; and CT2-4) were measured. Noise and contrast-to-noise ratio (CNR) were assessed for the eight rods at various iodine concentrations. CT2 and CT1 (40 keV) respectively required 20 mg/ml and 5 mg/ml of iodine, indicating that a comparable contrast effect could be obtained with approximately one-fourth of the contrast medium amount. The standard deviation values increased at lower energy levels irrespective of the iodine concentration. The CNR exhibited a decreasing trend with lower iodine concentrations, while it remained relatively stable across all iodine levels (40-70 keV). This study demonstrated that virtual monochromatic 40 keV images offer a similar contrast effect with a reduced contrast medium amount when compared to conventional CT systems at 120 kV. |
| Keywords | photon-counting detector CT energy integrating detector CT computed tomography contrast medium amount reduction |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2024-04 |
| Volume | volume78 |
| Issue | issue2 |
| Publisher | Okayama University Medical School |
| Start Page | 135 |
| End Page | 142 |
| 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 | 38688831 |
| Web of Science KeyUT | 001229151800005 |
| 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 | 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 |
| 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/65141 |
|---|---|
| FullText URL | 77_2_121.pdf |
| Author | Iguchi, Toshihiro| Matsui, Yusuke| Tomita, Koji| Uka, Mayu| Umakoshi, Noriyuki| Kawabata, Takahiro| Munetomo, Kazuaki| Nagata, Shoma| Araki, Motoo| Hiraki, Takao| |
| Abstract | Percutaneous cryoablation of renal tumors is widely used because of its high efficacy and safety. This high safety can be attributed, at least in part, to the visibility of the ablated area as an “ice ball”. This therapy has fewer complications (incidence, 0-7.2%) and is less invasive than surgery. Minor bleeding is inevitable in most kidney-related procedures, and indeed the most common complication of this therapy is bleeding (hematoma and hematuria). However, patients require treatment such as transfusion or transarterial embolization in only 0-4% of bleeding cases. Various other complications such as ureteral or collecting system injury, bowel injury, nerve injury, skin injury, infection, pneumothorax, and tract seeding also occur, but they are usually minor and asymptomatic. However, operators should know and avoid the various complications associated with this therapy. This study aimed to summarize the complications of percutaneous cryoablation for renal tumors and provide some techniques for achieving safe procedures. |
| Keywords | cryosurgery kidney neoplasms carcinoma renal cell complication |
| Amo Type | Review |
| Publication Title | Acta Medica Okayama |
| Published Date | 2023-04 |
| Volume | volume77 |
| Issue | issue2 |
| Publisher | Okayama University Medical School |
| Start Page | 121 |
| End Page | 129 |
| 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 | 37094949 |
| Web of Science KeyUT | 000982503800001 |
| 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 | 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 |
| NAID | 130008000092 |
| DOI | 10.1007/s11604-021-01109-5 |
| Web of Science KeyUT | 000631734600001 |
| Related Url | isVersionOf https://doi.org/10.1007/s11604-021-01109-5 |
| JaLCDOI | 10.18926/AMO/54512 |
|---|---|
| FullText URL | 70_4_317.pdf |
| Author | Sakurai, Jun| Matsui, Yusuke| Hiraki, Takao| Iguchi, Toshihiro| Fujiwara, Hiroyasu| Gobara, Hideo| Mitsuhashi, Toshiharu| Nagasaka, Takeshi| Susumu Kanazawa, Susumu Kanazawa| |
| Abstract | The present single center prospective phase II clinical trial is designed to evaluate the efficacy and safety of percutaneous radiofrequency (RF) ablation for colorectal lung metastases. Patients who have colorectal lung metastases without extrapulmonary metastases are included in this study. The primary endpoint is 3-year overall survival (OS) after RF ablation. The secondary endpoints are the prevalence of adverse events within 4 weeks, local tumor progression rate, 1- and 5-year OS, cause-specific survival, and relapse-free survival. The recruitment of patients commenced in July 2014, and the enrolment of 45 patients is intended over the 3 years of study period. |
| Keywords | radiofrequency ablation colorectal cancer lung metastasis |
| Amo Type | Clinical Study Protocols |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-08 |
| Volume | volume70 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 317 |
| End Page | 321 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27549681 |
| Web of Science KeyUT | 000384748600016 |
| JaLCDOI | 10.18926/AMO/54509 |
|---|---|
| FullText URL | 70_4_303.pdf |
| Author | Iguchi, Toshihiro| Sakurai, Jun| Hiraki, Takao| Gobara, Hideo| Fujiwara, Hiroyasu| Matsui, Yusuke| Masaoka, Yoshihisa| Kanazawa, Susumu| |
| Abstract | This single center prospective study is being conducted to evaluate the safety of the cryoablation for patients with pathologically diagnosed painful bone and soft tissue tumors. Enrollment of 10 patients is planned over the 3-year recruitment period. Patients have related local pain after receiving medications or external radiation therapies will be included in this study. Cryoablation will be percutaneously performed under imaging guidance, and a temperature sensor will be used during treatment as necessary. The primary endpoint is prevalence of severe adverse events within 4 weeks after therapy. The secondary endpoint is effectiveness 4 weeks after the procedure. |
| Keywords | cryoablation soft tissue and bone tumor pain safety |
| Amo Type | Clinical Study Protocols |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-08 |
| Volume | volume70 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 303 |
| End Page | 306 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27549678 |
| Web of Science KeyUT | 000384748600013 |
| JaLCDOI | 10.18926/AMO/54505 |
|---|---|
| FullText URL | 70_4_285.pdf |
| Author | Tanaka, Takashi| Gobara, Hideo| Inai, Ryota| Iguchi, Toshihiro| Tada, Akihiro| Sato, Shuhei| Yanai, Hiroyuki| Kanazawa, Susumu| |
| Abstract | We present a case of a 66-year-old man with esophageal carcinoma. 18Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) for evaluating distant metastasis and staging revealed 18F-FDG uptake in the third lumbar vertebra and other vertebrae. Magnetic resonance imaging could not differentiate bone metastases from benign bone lesions. We considered the possibility of bone marrow reconversion. 111Indium chloride (111In-Cl3) scintigraphy with single-photon emission computed tomography/computed tomography (SPECT/CT) revealed erythroid bone marrow components in the bone lesions. The diagnosis of bone marrow reconversion was pathologically confirmed by a bone biopsy of the third lumbar vertebra. The patient underwent esophagectomy and has remained disease-free in the 2 years since. To the best of our knowledge, this is the first report to describe the usefulness of 111In-Cl3 with SPECT/CT for the diagnosis of bone marrow reconversion. |
| Keywords | 111Indium chloride scintigraphy SPECT/CT bone marrow reconversion 18F-FDG PET/CT bone metastasis |
| Amo Type | Case Report |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-08 |
| Volume | volume70 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 285 |
| End Page | 289 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27549674 |
| Web of Science KeyUT | 000384748600009 |
