| JaLCDOI | 10.18926/AMO/58270 |
|---|---|
| フルテキストURL | 74_2_123.pdf |
| 著者 | Fukuhara, Ryuichiro| Shinya, Takayoshi| Fukuma, Shogo| Ogawa, Nanako| Masaoka, Yoshihisa| Tanaka, Takehiro| Marunaka, Hidenori| Arioka, Tadashi| Hiraki, Takao| Kaji, Mitsumasa| Kanazawa, Susumu| |
| 抄録 | The aim of this study was to evaluate the ability of pretreatment 90-min 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) to predict the extranodular spread of lymph node metastases in oral squamous cell carcinoma. We retrospectively reviewed the cases of 56 patients who underwent pretreatment 18F-FDG PET/CT and surgery with neck dissection. Maximum standardized uptake value, metabolic tumor volume, and total lesion glycolysis were measured for the 56 primary sites and maximum standardized uptake value was measured for 115 lymph node levels. Extranodular spread was present at 9 lymph node levels in 7 patients. Significant differences were found in metabolic tumor volume and total lesion glycolysis of the primary site, and in lymph node maximum standardized uptake value, between patients with and without extranodular spread (p<0.05). Combining primary site total lesion glycolysis and lymph node maximum standardized uptake volume at their respective optimal cutoffs, the sensitivity, specificity, and accuracy for predicting extranodular spread were 89%, 92%, and 92%, respectively. Pretreatment 18F-FDG PET/CT is useful for predicting extranodular spread in patients with oral squamous cell carcinoma. The combined use of primary site total lesion glycolysis and lymph node maximum standardized uptake value showed greater predictive value than either predictor singly. |
| キーワード | 18F-fluorodeoxyglucose positron emission tomography/computed tomography extranodular spread metastasis oral squamous cell carcinoma |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2020-04 |
| 巻 | 74巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 123 |
| 終了ページ | 128 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2020 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 32341586 |
| Web of Science KeyUT | 000528278500005 |
| NAID | 120006839449 |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Matsubara, Takehiro| Soh, Junichi| Morita, Mizuki| Uwabo, Takahiro| Tomida, Shuta| Fujiwara, Toshiyoshi| Kanazawa, Susumu| Toyooka, Shinichi| Hirasawa, Akira| |
| 発行日 | 2020-02-27 |
| 出版物タイトル | BioMed Research International |
| 巻 | 2020巻 |
| 出版者 | Hindawi |
| 開始ページ | 9349132 |
| ISSN | 2314-6133 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | © 2020 Takehiro Matsubara et al. |
| 論文のバージョン | publisher |
| PubMed ID | 32185225 |
| DOI | 10.1155/2020/9349132 |
| Web of Science KeyUT | 000522222100002 |
| 関連URL | isVersionOf https://doi.org/10.1155/2020/9349132 |
| 著者 | Tanaka, Takashi| Huang, Yong| Marukawa, Yohei| Tsuboi, Yuka| Masaoka, Yoshihisa| Kojima, Katsuhide| Iguchi, Toshihiro| Hiraki, Takao| Gobara, Hideo| Yanai, Hiroyuki| Nasu, Yasutomo| Kanazawa, Susumu| |
|---|---|
| キーワード | MDCT artificial intelligence kidney neoplasms neural network models |
| 発行日 | 2020-01-08 |
| 出版物タイトル | American journal of roentgenology |
| 出版者 | American Roentgen Ray Society |
| 開始ページ | 1 |
| 終了ページ | 8 |
| ISSN | 0361-803X |
| NCID | AA00521224 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 論文のバージョン | author |
| PubMed ID | 31913072 |
| DOI | 10.2214/AJR.19.22074 |
| 関連URL | isVersionOf https://doi.org/10.2214/AJR.19.22074 |
| フルテキストURL | MMR20_3_2963.pdf |
|---|---|
| 著者 | Yoshimura, Yuuki| Kuroda, Masahiro| Sugianto, Irfan| Khasawneh, Abdullah| Bamgbose, Babatunde O.| Hamada, Kentaro| Barham, Majd| Tekiki, Nouha| Kurozumi, Akira| Matsushita, Toshi| Ohno, Seiichiro| Kanazawa, Susumu| Asaumi, Junichi| |
| キーワード | magnetic resonance imaging apparent diffusion coefficient diffusion kurtosis imaging subtraction restricted diffusion bio-phantom cell |
| 発行日 | 2019-07-25 |
| 出版物タイトル | Molecular Medicine Reports |
| 巻 | 20巻 |
| 号 | 3号 |
| 出版者 | Spandidos Publications |
| 開始ページ | 2963 |
| 終了ページ | 2969 |
| ISSN | 1791-2997 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 論文のバージョン | publisher |
| PubMed ID | 31524240 |
| DOI | 10.3892/mmr.2019.10523 |
| Web of Science KeyUT | 000482435500103 |
| 関連URL | isVersionOf https://doi.org/10.3892/mmr.2019.10523 |
| フルテキストURL | RO14_1_209.pdf |
|---|---|
| 著者 | Sugiyama, Soichi| Katsui, Kuniaki| Tominaga, Yuki| Waki, Takahiro| Katayama, Norihisa| Matsuzaki, Hidenobu| Kariya, Shin| Kuroda, Masahiro| Nishizaki, Kazunori| Kanazawa, Susumu| |
| キーワード | Chemoradiotherapy Intensity-modulated proton therapy Maxillary sinus cancer Multi-leaf collimator Pencil beam scanning |
| 発行日 | 2019-11-21 |
| 出版物タイトル | Radiation Oncology |
| 巻 | 14巻 |
| 号 | 1号 |
| 開始ページ | 209 |
| ISSN | 1748-717X |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | © The Author(s). 2019 |
| 論文のバージョン | publisher |
| PubMed ID | 31752928 |
| DOI | 10.1186/s13014-019-1405-y |
| Web of Science KeyUT | 000499468500006 |
| 関連URL | isVersionOf https://doi.org/10.1186/s13014-019-1405-y |
| フルテキストURL | BMCC19_1_1144.pdf |
|---|---|
| 著者 | Katsui, Kuniaki| Ogata, Takeshi| Watanabe, Kenta| Katayama, Norihisa| Soh, Junichi| Kuroda, Masahiro| Kiura, Katsuyuki| Maeda, Yoshinobu| Toyooka, Shinichi| Kanazawa, Susumu| |
| キーワード | Induction chemoradiotherapy Lower lobe Mean lung dose Non-small cell lung cancer Radiation pneumonitis |
| 発行日 | 2019-11 |
| 出版物タイトル | BMC Cancer |
| 巻 | 19巻 |
| 号 | 1号 |
| 出版者 | BMC |
| 開始ページ | 1144 |
| ISSN | 1471-2407 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | © The Author(s). 2019 |
| 論文のバージョン | publisher |
| PubMed ID | 31771538 |
| DOI | 10.1186/s12885-019-6359-9 |
| Web of Science KeyUT | 000499423900004 |
| 関連URL | isVersionOf https://doi.org/10.1186/s12885-019-6359-9 |
| 著者 | Shinya, Takayoshi| Masaoka, Yoshihisa| Sando, Motohiro| Tanabe, Shin| Okamoto, Soichiro| Ihara, Hiroki| Tanaka, Takehiro| Otani, Shinji| Hiraki, Takao| Kanazawa, Susumu| |
|---|---|
| キーワード | Solitary fibrous tumor (SFT) Intrapulmonary Computed tomography (CT) |
| 発行日 | 2019-06 |
| 出版物タイトル | Radiology Case Reports |
| 巻 | 14巻 |
| 号 | 6号 |
| 出版者 | Elsevier |
| 開始ページ | 755 |
| 終了ページ | 758 |
| ISSN | 1930-0433 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | © 2019 The Authors. |
| 論文のバージョン | publisher |
| PubMed ID | 30992735 |
| DOI | 10.1016/j.radcr.2019.03.023 |
| 関連URL | isVersionof https://doi.org/10.1016/j.radcr.2019.03.023 |
| JaLCDOI | 10.18926/AMO/56871 |
|---|---|
| フルテキストURL | 73_3_269.pdf |
| 著者 | Tsuboi, Ichiro| Araki, Motoo| Fujiwara, Hiroyasu| Iguchi, Toshihiro| Hiraki, Takao| Arichi, Naoko| Kawamura, Kasumi| Maruyama, Yuki| Mitsui, Yosuke| Sadahira, Takuya| Kubota, Risa| Nishimura, Shingo| Sako, Tomoko| Takamoto, Atsushi| Wada, Koichiro| Kobayashi, Yasuyuki| Watanabe, Toyohiko| Yanai, Hiroyuki| Kitagawa, Masashi| Tanabe, Katsuyuki| Sugiyama, Hitoshi| Wada, Jun| Shiina, Hiroaki| Kanazawa, Susumu| Nasu, Yasutomo| |
| 抄録 | Nephron-sparing treatment should be offered whenever possible to avoid dialysis in allograph cases. Cryoablation is a new treatment option for treating small-sized renal cell cancer (RCCs). We report a case of RCC arising in a kidney allograft treated by cryoablation. To our knowledge, this is the first case in Asia of RCC in a renal allograft treated using cryoablation. Contrast-enhanced CT-guided percutaneous renal needle biopsy and cryoablation were used to identify the RCC, which could not be identified by other techniques. The postoperative course was uneventful. Contrast-enhanced CT also showed no recurrence or metastases at the 6-month follow-up. |
| キーワード | cryoablation partial nephrectomy renal cell carcinoma renal allograft renal transplantation |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2019-06 |
| 巻 | 73巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 269 |
| 終了ページ | 272 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2019 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 31235976 |
| JaLCDOI | 10.18926/AMO/54981 |
|---|---|
| フルテキストURL | 71_2_127.pdf |
| 著者 | Shirakawa, Yasuhiro| Noma, Kazuhiro| Maeda, Naoaki| Tanabe, Shunsuke| Kuroda, Shinji| Kagawa, Shunsuke| Katsui, Kuniaki| Katayama, Norihisa| Kanazawa, Susumu| Fujiwara, Toshiyoshi| |
| 抄録 | Currently, chemoradiation is the most widely used nonsurgical treatment for esophageal cancer. However, some patients, particularly the very elderly or those with severe vital organ dysfunction, face difficulty with the chemotherapy component. We therefore examined the outcome of radiation therapy (RT) alone for patients with esophageal cancer at our facility. Between January 2005 and December 2014, 84 patients underwent RT at our hospital, and 78 of these patients received concomitant chemotherapy. The remaining 6 patients underwent RT alone; these patients were considered to be high-risk and to have no lymph node metastasis (stage I). Five of them received irradiation up to a curative dose: 4 showed a complete response (CR) and 1 showed a partial response (PR). Of the patients exhibiting CR, 3 are currently living recurrence-free, whereas 1 patient underwent endoscopic submucosal dissection (ESD) as salvage therapy for local recurrence, with no subsequent recurrence. High-risk stage I esophageal cancer patients can be treated radically with RT alone under certain conditions. In the future, to broaden the indications for RT monotherapy to include some degree of advanced cancers, a novel concurrent therapy should be identified. |
| キーワード | esophageal cancer radiation therapy high-risk patient |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2017-04 |
| 巻 | 71巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 127 |
| 終了ページ | 133 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2017 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 28420894 |
| JaLCDOI | 10.18926/AMO/54978 |
|---|---|
| フルテキストURL | 71_2_105.pdf |
| 著者 | Shinya, Takayoshi| Tanaka, Takashi| Soh, Junichi| Matsushita, Toshi| Sato, Shuhei| Toyooka, Shinichi| Yoshino, Tadashi| Miyoshi, Shinichiro| Kanazawa, Susumu| |
| 抄録 | We retrospectively assessed the dual-time-point (DTP) F-18 FDG PET/CT findings of thymic epithelial neoplasms (TENs) and investigated the diagnostic capacity of PET/CT compared to that of CT for predicting carcinoma. We calculated the ratio of the standardized uptake value of the tumor and that of the aortic arch (T/M ratio) for both the 90-min early scan and the 2-h delayed scan in 56 TEN patients. We used a multivariate logistic regression (MLR) analysis to estimate the CT features of carcinoma. We compared the diagnostic capacities of PET/CT and chest CT using receiver operating characteristic (ROC) analyses. The ROC curve revealed that the appropriate cut-off T/M ratio value for the highest accuracy was 2.39 with 75.0% accuracy. The area under the curve (AUC) was 0.855. The statistical analyses for DTP scans of 35 TEN patients demonstrated 74.3% accuracy and 0.838 AUC for the early scan versus 82.9% and 0.825 for the delayed scan. The MLR analysis indicated that mediastinal fat infiltration was a predictor of carcinoma. The ROC curve obtained for the model yielded an AUC of 0.853. Delayed scanning could improve the diagnostic capacity for carcinoma. The T/M ratio and mediastinal fat infiltration are predictive of carcinoma with moderate diagnostic accuracy. |
| キーワード | thymic epithelial neoplasm thymic carcinoma thymoma dual-time-point PET/CT chest CT |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2017-04 |
| 巻 | 71巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 105 |
| 終了ページ | 112 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2017 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 28420891 |
| JaLCDOI | 10.18926/AMO/54976 |
|---|---|
| フルテキストURL | 71_2_91.pdf |
| 著者 | Ogawa, Nanako| Sato, Shuhei| Ida, Kentaro| Kato, Katsuya| Ariyoshi, Yuichi| Wada, Koichiro| Nasu, Yasutomo| Kanazawa, Susumu| |
| 抄録 | The aim of this study was to investigate the utility of single-source dual-energy computed tomography (SS-DECT) composition analysis in characterizing different types of urinary stones and differentiating them from phleboliths. This study included 29 patients with urinary stones who were scheduled for surgery. All patients were scanned, first using single-energy computed tomography acquisition and then DECT acquisition on SS-DECT. Dual-energy data were archived to a Gemstone spectral imaging (GSI) viewer (GE Healthcare, Milwaukee, WI, USA). Hounsfield units (HU) and effective atomic numbers (Zeff) were estimated using the GSI viewer. The results of dual-energy analysis were compared with the biochemical constitution of the stones. The chemical analysis determined that the stones included 32 calcium-based, 6 cystine and 1 struvite stone. Both HU and Zeff values were helpful in differentiating calcium-based stones from cystine and struvite stones and phleboliths. The Zeff values of phleboliths were significantly higher than those for struvite and cystine stones, whereas it was difficult to distinguish phleboliths from struvite and cystine stones using the HU values. Composition analysis using SS-DECT is helpful for distinguishing urinary stone types and discriminating phleboliths from urinary stones. Zeff values may be more useful than HU values for differentiating urinary stones from phleboliths. |
| キーワード | single-source dual-energy computed tomography effective atomic number urinary stone phlebolith |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2017-04 |
| 巻 | 71巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 91 |
| 終了ページ | 96 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2017 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 28420889 |
| 著者 | Waki, Takahiro| Katsui, Kuniaki| Mitsuhashi, Toshiharu| Ogata, Takeshi| Katayama, Norihisa| Takemoto, Mitsuhiro| Nasu, Yasutomo| Kumon, Hiromi| Kanazawa, Susumu| |
|---|---|
| 発行日 | 2017-02 |
| 出版物タイトル | Acta Medica Okayama |
| 巻 | 71巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/AMO/54823 |
| JaLCDOI | 10.18926/AMO/54817 |
|---|---|
| フルテキストURL | 70_6_511.pdf |
| 著者 | Gobara, Hideo| Hiraki, Takao| Iguchi, Toshihiro| Fujiwara, Hiroyasu| Nagasaka, Takeshi| Kishimoto, Hiroyuki| Tanaka, Takehiro| Kanazawa, Susumu| |
| 抄録 | An 87-year-old Japanese man underwent percutaneous cryoablation (PCA) therapy for his renal cell tumor. We displaced the colon from the tumor using hydrodissection. Computed tomography (CT) immediately after PCA was indicative of iceball extension to the colon wall, and a discontinuous enhancement of the colon wall was observed. We therefore performed an emergency surgery. On laparotomy, we observed a dark-purple area on the affected area of the colon, and the resected specimen showed focal, deep ulceration on the mucosal surface. Photomicrography revealed mucosal necrosis, submucosal hemorrhage, and necrotic foci in the muscularis propria, corresponding to the discontinuous colon wall enhancement on CT and the deep ulceration and dark-purple area on laparotomy. He recovered from surgery and was discharged without any complications. |
| キーワード | bowel injury complication cryoablation renal cell carcinoma thermal ablation |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2016-12 |
| 巻 | 70巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 511 |
| 終了ページ | 514 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2016 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 28003679 |
| JaLCDOI | 10.18926/AMO/54512 |
|---|---|
| フルテキストURL | 70_4_317.pdf |
| 著者 | Sakurai, Jun| Matsui, Yusuke| Hiraki, Takao| Iguchi, Toshihiro| Fujiwara, Hiroyasu| Gobara, Hideo| Mitsuhashi, Toshiharu| Nagasaka, Takeshi| Susumu Kanazawa, Susumu Kanazawa| |
| 抄録 | 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. |
| キーワード | radiofrequency ablation colorectal cancer lung metastasis |
| Amo Type | Clinical Study Protocols |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2016-08 |
| 巻 | 70巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 317 |
| 終了ページ | 321 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2016 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 27549681 |
| Web of Science KeyUT | 000384748600016 |
| JaLCDOI | 10.18926/AMO/54509 |
|---|---|
| フルテキストURL | 70_4_303.pdf |
| 著者 | Iguchi, Toshihiro| Sakurai, Jun| Hiraki, Takao| Gobara, Hideo| Fujiwara, Hiroyasu| Matsui, Yusuke| Masaoka, Yoshihisa| Kanazawa, Susumu| |
| 抄録 | 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. |
| キーワード | cryoablation soft tissue and bone tumor pain safety |
| Amo Type | Clinical Study Protocols |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2016-08 |
| 巻 | 70巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 303 |
| 終了ページ | 306 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2016 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 27549678 |
| Web of Science KeyUT | 000384748600013 |
| JaLCDOI | 10.18926/AMO/54505 |
|---|---|
| フルテキストURL | 70_4_285.pdf |
| 著者 | Tanaka, Takashi| Gobara, Hideo| Inai, Ryota| Iguchi, Toshihiro| Tada, Akihiro| Sato, Shuhei| Yanai, Hiroyuki| Kanazawa, Susumu| |
| 抄録 | 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. |
| キーワード | 111Indium chloride scintigraphy SPECT/CT bone marrow reconversion 18F-FDG PET/CT bone metastasis |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2016-08 |
| 巻 | 70巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 285 |
| 終了ページ | 289 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2016 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 27549674 |
| Web of Science KeyUT | 000384748600009 |
| JaLCDOI | 10.18926/AMO/54418 |
|---|---|
| フルテキストURL | 70_3_189.pdf |
| 著者 | Fujiwara, Hiroyasu| Arai, Yasuaki| Ishii, Hiroaki| Kanazawa, Susumu| |
| 抄録 | We retrospectively evaluated the safety and efficacy of artificial pneumothorax induction to perform computed tomography (CT)-guided radiofrequency ablation (RFA) for sub-diaphragm hepatocellular carcinomas (HCCs). From June 2008 to October 2010 at our institution, 19 HCCs (16 patients) were treated using CT-guided RFA after artificial pneumothorax induction. A 23-G needle was inserted into the liver surface at a site of 2 connected pleurae without lung tissue. After a small amount of air was injected, the pleural space widened, creating a small pneumothorax. Additional air was insufflated via a newly inserted 18-G cannula to raise the lung away from the planned puncture line for RFA. The electrode was then advanced transthoracically. Ablation was performed using a cool-tip electrode with manual impedance control mode. The injected air was then aspirated as much as possible. Artificial pneumothorax was successfully induced in all cases. The average total volume of injected air in each case was 238ml. No artificial pneumothorax-related complication occurred; lung injury occurred in one case during RF electrode insertion. No local progression occurred during follow-up. Recurring HCCs were observed in eight patients. Artificial pneumothorax induction is safe and effective for CT-guided RFA of sub-diaphragm HCCs, which are difficult to locate on US. |
| キーワード | hepatocellular carcinoma liver radiofrequency ablation CT fluoroscopy artificial pneumothorax |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2016-06 |
| 巻 | 70巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 189 |
| 終了ページ | 195 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2016 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 27339208 |
| Web of Science KeyUT | 000379406100006 |
| JaLCDOI | 10.18926/AMO/53554 |
|---|---|
| フルテキストURL | 69_4_189.pdf |
| 著者 | Yamashita, Mako| Katayama, Norihisa| Waki, Takahiro| Katsui, Kuniaki| Himei, Kengo| Takemoto, Mitsuhiro| Kanazawa, Susumu| |
| 抄録 | This study compared field-in-field (FIF) radiotherapy with conformal radiotherapy with physical wedges for the treatment of unilateral cervical malignant lymphoma. Two treatment plans, the FIF technique and conformal RT, were generated for each of 32 patients with unilateral cervical malignant lymphoma. To compare the 2 treatment plans, dose-volume histograms of the planning target volume (PTV), the thyroid, submandibular gland, carotid artery, mucosa, spinal cord, and surrounding normal tissue, and monitor unit (MU) were analyzed. The FIF technique showed significant reduction in the mean dose of thyroid, submandibular gland, carotid artery and mucosa, the maximum dose of the spinal cord and PTV, and the volume receiving＞107% of the prescribed dose of surrounding normal tissue (p＜0.001). In addition, there were gains in the homogeneity index of the PTV for FIF. Furthermore, the total MU was also lower for the FIF technique than for the wedge technique (p＜0.001). Compared with the wedge technique, the FIF technique improved the dose homogeneity of the PTV, reduced the dose to normal structures, and was associated with fewer MUs in the treatment of patients with cervical malignant lymphoma. |
| キーワード | field-in-field technique wedge lymphoma monitor units dose-volume histogram |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2015-08 |
| 巻 | 69巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 189 |
| 終了ページ | 195 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2015 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 26289909 |
| Web of Science KeyUT | 000365519100001 |
| タイトル（別表記） | Proton therapy |
|---|---|
| フルテキストURL | 127_155.pdf |
| 著者 | 勝井 邦彰| 沖本 智昭| 金澤 右| |
| 出版物タイトル | 岡山医学会雑誌 |
| 発行日 | 2015-08-03 |
| 巻 | 127巻 |
| 号 | 2号 |
| 開始ページ | 155 |
| 終了ページ | 157 |
| ISSN | 0030-1558 |
| 関連URL | isVersionOf https://doi.org/10.4044/joma.127.155 |
| 言語 | 日本語 |
| 著作権者 | Copyright (c) 2015 岡山医学会 |
| 論文のバージョン | publisher |
| DOI | 10.4044/joma.127.155 |
| NAID | 130005096259 |
| JaLCDOI | 10.18926/AMO/52009 |
|---|---|
| フルテキストURL | 67_6_359.pdf |
| 著者 | Katashima, Kazunori| Kuroda, Masahiro| Ashida, Masakazu| Sasaki, Takanori| Taguchi, Takehito| Matsuzaki, Hidenobu| Murakami, Jun| Yanagi, Yoshinobu| Hisatomi, Miki| Hara, Marina| Kato, Hirokazu| Ohmura, Yuichi| Kobayashi, Tomoki| Kanazawa, Susumu| Harada, Sosuke| Takemoto, Mitsuhiro| Ohno, Seiichiro| Mimura, Seiichi| Asaumi, Junichi| |
| 抄録 | It is well known that many tumor tissues show lower apparent diffusion coefficient (ADC) values, and that several factors are involved in the reduction of ADC values. The aim of this study was to clarify how much each factor contributes to decreases in ADC values. We investigate the roles of cell density, extracellular space, intracellular factors, apoptosis and necrosis in ADC values using bio-phantoms. The ADC values of bio-phantoms, in which Jurkat cells were encapsulated by gellan gum, were measured by a 1.5-Tesla magnetic resonance imaging device with constant diffusion time of 30sec. Heating at 42℃ was used to induce apoptosis while heating at 48℃ was used to induce necrosis. Cell death after heating was evaluated by flow cytometric analysis and electron microscopy. The ADC values of bio-phantoms including non-heated cells decreased linearly with increases in cell density, and showed a steep decline when the distance between cells became less than 3μm. The analysis of ADC values of cells after destruction of cellular structures by sonication suggested that approximately two-thirds of the ADC values of cells originate from their cellular structures. The ADC values of bio-phantoms including necrotic cells increased while those including apoptotic cells decreased. This study quantitatively clarified the role of the cellular factors and the extracellular space in determining the ADC values produced by tumor cells. The intermediate diffusion time of 30msec might be optimal to distinguish between apoptosis and necrosis. |
| キーワード | ADC apoptosis necrosis hyperthermia cell density |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2013-12 |
| 巻 | 67巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 359 |
| 終了ページ | 367 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2013 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 24356720 |
| Web of Science KeyUT | 000328915700004 |