著者 金澤 右|
発行日 1986-03-31
出版物タイトル
資料タイプ 学位論文
著者 金澤 右|
発行日 2006-09-01
出版物タイトル 岡山医学会雑誌
118巻
2号
資料タイプ 学術雑誌論文
著者 金澤 右|
発行日 2005-01-31
出版物タイトル 岡山医学会雑誌
116巻
3号
資料タイプ 学術雑誌論文
著者 金澤 右|
発行日 1986-02-28
出版物タイトル 岡山医学会雑誌
98巻
1-2号
資料タイプ 学術雑誌論文
著者 Fukuma, A.| Kanazawa, Susumu| Miyagi, Daisuke| Takahashi, Norio|
発行日 2005-5
出版物タイトル Magnetics
41巻
5号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/30714
フルテキストURL fulltext.pdf
著者 Ida, Kentaro| Akaki, Shiro| Sei, Tetsuro| Tsunoda, Masatoshi| Kanazawa, Susumu|
抄録 To determine the efficacy of flow-sensitive alternating inversion recovery using half-Fourier single-shot turbo spin-echo (FAIR-HASTE) in detecting cerebral hypoperfusion in chronic carotid occlusive disease, we subjected 12 patients with various degrees of cervical internal carotid artery stenoses and/or occlusion (Stenosis group) and 24 volunteers (Normal group) to FAIR-HASTE. In addition, 10 out of 12 patients in the Stenosis group underwent dynamic susceptibility contrast-perfusion magnetic resonance imaging (DSC-pMRI) before and after revascularization in the dominantly affected side. The absolute asymmetry indexes (AIs) of both cerebral hemispheres in the Normal and Stenosis groups were compared in FAIR-HASTE. In addition, the AIs were compared with those in the Stenosis group before and after revascularization in both FAIR-HASTE and regional cerebral blood flow (rCBF), calculated with DSC-pMRI. A statistically significant difference was recognized between the AIs in the Normal and Stenosis groups (AI = 2.25 +- 1.92, 8.09 +- 4.60, respectively ; p < 0.0001). Furthermore, in the Stenosis group the AIs on both FAIR-HASTE (8.88 +- 4.93, 2.22 +- 1.79, respectively ; p = 0.0003) and rCBF (7.13 +- 3.57, 1.25 +- 1.33, respectively ; p = 0.0003) significantly decreased after revascularization. In the Stenosis group, before revascularization, signal intensity on both FAIR-HASTE and rCBF had a tendency to be lower in the dominantly affected side. FAIR-HASTE imaging was useful in the detection and evaluation of cerebral hypoperfusion in chronic occlusive carotid disease.
キーワード brain perfusion MRI FAIR HASTE
Amo Type Article
出版物タイトル Acta Medica Okayama
発行日 2006-08
60巻
4号
出版者 Okayama University Medical School
開始ページ 215
終了ページ 221
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 16943858
Web of Science KeyUT 000239911100002
JaLCDOI 10.18926/AMO/30978
フルテキストURL fulltext.pdf
著者 Matsushita, Toshi| Anami, Daigo| Arioka, Tadashi| Inoue, Seiji| Kariya, Yusuke| Fujimoto, Masako| Ida, Kentaro| Sasai, Nobuya| Kaji, Mitsumasa| Kanazawa, Susumu| Joja, Ikuo|
抄録 <p>With the aim of sequence optimization in susceptibility-weighted imaging (SWI), 2 image acquisition parameters (slice thickness and matrix size) and 2 image processing conditions (number of slices per minimum intensity projection (MIP) and Sliding Window) were investigated using a 1.5-T magnetic resonance imaging (MRI) system. The subjects were 12 healthy volunteers and the target region for scanning was the whole brain. Informed consent was obtained from all subjects. First, susceptibility-weighted images were acquired with various slice thicknesses from 1mm to 5mm and various matrix sizes from 256x256 to 512x512, and the images were assessed in terms of the contrast-to-noise ratio (CNR) and were also visually evaluated by three radiologists. Then, the number of slices per MIP and the usefulness of the Sliding Window were investigated. In the study of the optimal slice thickness and matrix size, the results of visual evaluation suggested that a slice thickness of 3mm and a matrix size of 448x448 are optimal, while the results of evaluation based on CNR were not significant. As regards the image processing conditions, the results suggested that the number of slices per MIP should be set to a minimum value of 2 and that the use of Sliding Window is effective. The present study provides useful reference data for optimizing SWI sequences.</p>
キーワード susceptibility phase contrast-to-noise ratio number of slices per MIP Sliding Window
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2008-06
62巻
3号
出版者 Okayama University Medical School
開始ページ 159
終了ページ 168
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 18596832
Web of Science KeyUT 000257130300003
JaLCDOI 10.18926/AMO/31527
フルテキストURL fulltext.pdf
著者 Ueno, Mitsuo| Ohta, Takeo| Nakagiri, Shingo| Ogawa, Takanori| Nakao, Shunzo| Arisawa, Toyotake| Mino, Yoshio| Kodera, Ryosei| Kanazawa, Susumu| Oyama, Kouichi| Nakase, Katsumi| Koda, Shigeki| Aoyama, Hideyasu|
抄録 <p>The differences in physiological and safety conditions of one-man buses and two-man buses were examined from the view point of occupational fatigue. This survey consisted of a work load study which included a time study, study of subsidiary behavior, auditory task, memory test, Galvanic Skin Response (GSR) and physiological function tests and a self-administered questionnaire which involved items concerning safety and subjective fatigue complaints. The visual and postural restrictions in the one-man bus were greater than in the two-man bus. The mental capacity of the one-man bus drivers was found to be less. Greater mental fatigue and stress were observed in the one-man bus. More subjective fatigue complaints were observed in the one-man bus. More cases of near accidents were observed in the one-man bus. From these results it was concluded that the one-man bus caused bus drivers a greater mental and physical work load.</p>
キーワード one-man bus two-man bus work load subjective fatigue complaints auditory task
Amo Type Article
出版物タイトル Acta Medica Okayama
発行日 1985-06
39巻
3号
出版者 Okayama University Medical School
開始ページ 207
終了ページ 215
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 2862758
Web of Science KeyUT A1985ALG3300006
JaLCDOI 10.18926/AMO/32016
フルテキストURL fulltext.pdf
著者 Yasui, Kotaro| Kanazawa, Susumu| Mimura, Hidefumi| Dendo, Shuichi| Hiraki, Yoshio| Irie, Hiroyuki| Sano, Shunji|
抄録 <p>An 83-year-old man with a large internal iliac artery aneurysm (IIAA) was treated with the use of stent-graft, suggesting successful results at 3, 6, and 12 months after treatment. However, 24-month follow-up computed tomography showed minor peripheral opacification of the IIAA. The patient underwent surgical endoaneurysmorrhaphy. No previous report of long-term recanalization of a satisfactorily thrombosed iliac artery aneurysm at 2 years or more after stent-grafting has been previously reported. Further follow-up studies need to be performed on the present procedure before anyone can confidently recommend it in regard to its long-term safety.</p>
キーワード aneurysm iliac---stents and prosthesis
Amo Type Article
出版物タイトル Acta Medica Okayama
発行日 2001-11
55巻
5号
出版者 Okayama University Medical School
開始ページ 315
終了ページ 318
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 11688956
Web of Science KeyUT 000171635400009
JaLCDOI 10.18926/AMO/32102
フルテキストURL fulltext.pdf
著者 Hyodo, Tsuyoshi| Kanazawa, Susumu| Dendo, Shuichi| Kobayashi, Keita| Hayashi, Hirohide| Kouno, Yoshihiro| Fujishima, Mamoru| Hiraki, Yoshio|
抄録 <p>We compared the thin-section CT findings of 11 intrapulmonary lymph nodes with pathological findings and evaluated the possibility of CT scan differential diagnosis from pulmonary metastatic nodules. First, we retrospectively reviewed CT scan and pathological findings of intrapulmonary lymph nodes. The median size of these nodules was 6.2 mm. The nodules appeared round (n=3) or angular (n=8) in shape with a sharp border, and they were found below the level of the carina. The median distance from the nearest pleural surface was 4.6 mm, and 3 of the 11 nodules were attached to the pleura. On thin-section CT scan, linear densities extending from the intrapulmonary lymph nodes were frequently visualized, and were pathologically proven to be ectatic lymphoid channels. We then compared the thin-section CT findings of 8 metastatic nodules less than 1 cm in diameter with those of the 11 intrapulmonary lymph nodes. The median size of these nodules was 6.8 mm, and the median distance from the nearest pleural surface was 16 mm. All nodules appeared round in shape. None of the nodules had linear densities extending from the nodules. The linear densities on thin-section CT scan may be the most useful characteristic of intrapulmonary lymph nodes, when differential diagnosis from metastatic nodules is necessary.</p>
キーワード intrapulmonary lymph nodes thin-section CT scan pathological findings pulmonary metastatic nodules
Amo Type Article
出版物タイトル Acta Medica Okayama
発行日 2004-10
58巻
5号
出版者 Okayama University Medical School
開始ページ 235
終了ページ 240
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 15666992
Web of Science KeyUT 000224708800002
JaLCDOI 10.18926/AMO/32304
フルテキストURL fulltext.pdf
著者 Mino, Yoshio| Yasuda, Nobufumi| Kanazawa, Susumu| Inoue, Shimpei|
抄録 <p>In order to clarify the effects of medical education on attitudes towards mental illness among medical students, a follow-up study was conducted. All 100 students entering Kochi Medical School in 1988 were subjects. The initial questionnaire survey was conducted in 1988, and followed up in 1993. Response rate was 69% in the initial survey, and 83% in the follow-up study. By the time of the follow-up, all of the students had completed their medical education, including courses in psychiatry and mental health. Results were as follows: At the follow-up study, 1) a significantly higher percentage of students replied that they accepted the mentally ill as co-workers; 2) significantly favorable changes were observed in attitudes towards psychiatric services; 3) optimism about the effectiveness of treatment for mental illness at an early stage and prevention of mental illness had decreased; and 4) no change was observed in attitudes toward human rights of the mentally ill, except in the case of one item stating that the mentally ill should not have children in order to avoid hereditary handicaps, with which a lower percentage agreed. Conclusively, medical education can play an important role in attitudes towards mental illness. </p>
キーワード attitudes towards mental illness medical education medical students follow-up study
Amo Type Article
出版物タイトル Acta Medica Okayama
発行日 2000-06
54巻
3号
出版者 Okayama University Medical School
開始ページ 127
終了ページ 132
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 10925737
Web of Science KeyUT 000087965700005
JaLCDOI 10.18926/AMO/32886
フルテキストURL fulltext.pdf
著者 Maki, Daisuke| Takahashi, Masashi| Ushio, Noritoshi| Takazakura, Ryutaro| Nitta, Norihisa| Murata, Kiyoshi| Kanazawa, Susumu|
抄録 <p>The aim of the present study was to define the resolution of multiplanar reconstruction (MPR) of the lung from &#34;theoretical isotropic data.&#34; Using inflated and fixed lung specimens of the pig placed in the chest wall phantom, 0.5-mm isotropic data were obtained with 2 different helical pitches: 1:7 (high-quality mode) or 1:13, (high-speed mode), and 2 different tube currents: 250 mAs (high-tube-current mode) or 100 mAs (low-tube-current mode), with or without overlapping reconstruction. MPRs were created from these axial data. The diameter of the smallest visible pulmonary artery and bronchi of these CT images were measured on the corresponding slices of the specimen. The high-speed and low-tube-current mode significantly degraded the image quality due to increased noise. The smallest visible pulmonary artery and bronchus resolved on MPRs from axial-spiral data with 0.5-mm collimation were approximately 100 micrometer and 1,000 micrometer in diameter, respectively. In conclusion, helical pitch and tube current influence the resolution of MPR of the lung.</p>
キーワード multiplanar reconstruction computed tomography lung
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2007-04
61巻
2号
出版者 Okayama University Medical School
開始ページ 63
終了ページ 69
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 17471306
Web of Science KeyUT 000245875600003
JaLCDOI 10.18926/AMO/43830
フルテキストURL 65_1_49.pdf
著者 Iguchi, Toshihiro| Idani, Hitoshi| Asami, Shinya| Endo, Hisashi| Inaba, Yoshitaka| Arai, Yasuaki| Kanazawa, Susumu|
抄録 We administered hepatic arterial infusion chemotherapy (HAIC) prior to FOLFOX to three patients with unresectable liver metastases from colorectal cancer. The patients' disease state was found to be highly advanced based on both computed tomography findings and liver function tests. The treatment strategy included an initial administration of HAIC to control liver metastases and improve liver function in order to facilitate the subsequent safe administration of FOLFOX without drug loss. As the HAIC regimen, 1,000mg/m2 of 5-FU was administered weekly by continuous 5-h infusion after performing laboratory investigations through an implanted port-catheter system. After 3 HAIC cycles administered over 3 consecutive weeks, the mean alkaline phosphatase levels decreased from 969.3IU/l to 422IU/l due to shrinkage of the liver metastases. Thereafter, FOLFOX without drug loss could be safely initiated for all patients. Two patients succumbed 488 and 333 days after HAIC was initiated;the third patient is still alive and has been followed-up for 1215 days. The combined use of HAIC and standard systemic chemotherapy could be a feasible and efficacious treatment in highly advanced cases of liver dysfunction.
キーワード colorectal cancer hepatic arterial infusion chemotherapy liver metastasis port-catheter system
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2011-02
65巻
1号
出版者 Okayama University Medical School
開始ページ 49
終了ページ 53
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2011 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 21339796
Web of Science KeyUT 000287620500007
著者 金澤 右|
発行日 2011-08-01
出版物タイトル 岡山医学会雑誌
123巻
2号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/48559
フルテキストURL 66_3_203.pdf
著者 Ohno, Seiichiro| Harimoto, Takashi| Hirosue, Miyuki| Miyai, Masahiro| Hattori, Kengo| Kuroda, Masahiro| Kanazawa, Susumu| Inamura, Keiji| Kato, Hirokazu|
抄録 Magnetic resonance imaging (MRI) visualization of metallic stent lumens is possible if the stent structure counteracts eddy currents in the lumen induced by the radio frequency magnetic field, B1. To examine the effectiveness of various stent designs in counteracting eddy currents, we anchored eight copper stent models and 2 commercially available nickel-titanium alloy (Nitinol) stents in a gel phantom, perpendicular or parallel to the direction of B1. A mesh stent lumen showed hypointensity irrespective of its alignment relative to B1. A solenoid stent lumen showed hypointensity with the stent axis parallel to B1, but it had the same signal intensity as outside the lumen when perpendicular to B1. A Moebius stent lumen showed no signal reduction, irrespective of alignment relative to B1. Lumens of the commercially available stents showed hypointensity regardless of alignment relative to B1. Computer simulation revealed that the signal intensities of the stents corresponded to magnetic flux densities of B1 in the stents, which are modified by the structure of the stent. While in vivo MRI viewing of a Moebius stent lumen is likely possible regardless of axis alignment, inherent structural weakness may be problematic. As a more practical choice, the solenoid stent is easier to manufacture and generates no hypointensive signal when the axis is parallel to B0.
キーワード MRI visualization of stent lumen solenoid pattern Moebius pattern direction of B1
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2012-06
66巻
3号
出版者 Okayama University Medical School
開始ページ 203
終了ページ 211
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 22729100
Web of Science KeyUT 000305669700003
関連URL http://ousar.lib.okayama-u.ac.jp/metadata/48542
著者 金澤 右|
発行日 2013-12-02
出版物タイトル 岡山医学会雑誌
125巻
3号
資料タイプ 学術雑誌論文
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
20巻
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 English
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
JaLCDOI 10.18926/AMO/32894
フルテキストURL fulltext.pdf
著者 Mifune, Hirofumi| Akaki, Shiro| Ida, Kentaro| Sei, Tetsuro| Kanazawa, Susumu| Okada, Hiroyuki|
抄録 &#60;P&#62;To evaluate the ability of multidetector-row CT (MDCT) to predict a risk of hemorrhage in patients with esophageal varices, a total of 40 MDCT scans were performed in 29 patients who had been diagnosed with esophageal varices by conventional upper gastrointestinal tract endoscopy. In 11 patients, MDCT was performed both before and after endoscopic injection sclerotherapy (EIS). Endoscopically, the red color sign (RC sign) was present in 28 scans. Of the 11 patients who underwent EIS, the RC sign disappeared after EIS in 9. The MDCT scans were obtained in the arterial, portal, and equilibrial phases, and the portal phase images were used in this study. Subsequently, the extent of esophageal varices was categorized into four MDCT scores. The variceal score, the maximum short axis of the varices, and the presence of palisade vein dilatation obtained from MDCT had significant correlation with endoscopic variceal forms, and the presence and severity of RC sign, respectively (p&#60;0.01). All cases with a maximum minor axis of more than 4 mm showed positive RC sign. MDCT was useful in the evaluation of esophageal varices for predicting a risk of hemorrhage.
キーワード esophageal varices red color sign MDCT
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2007-10
61巻
5号
出版者 Okayama University Medical School
開始ページ 247
終了ページ 254
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 17971841
Web of Science KeyUT 000250431700002
JaLCDOI 10.18926/AMO/40011
フルテキストURL fulltext.pdf
著者 Honda, Mitsugi| Arita, Seizaburo| Mitani, Shigeru| Takeda, Yoshihiro| Ozaki, Toshifumi| Inamura, Keiji| Kanazawa, Susumu|
抄録 Plain X-ray radiography is frequently used for the diagnosis of developmental dislocation of the hip (DDH). The aim of this study was to construct a diagnostic support system for DDH based on clinical findings obtained from the X-ray images of 154 female infants with confirmed diagnoses made by orthopedists. The data for these subjects were divided into 2 groups. The Min-Max method of nonlinear analysis was applied to the data from Group 1 to construct the diagnostic support system based on the measurement of 4 items in X-ray images:the outward displacement rate, upward displacement rate, OE angle, and alpha angle. This system was then applied to the data from Group 2, and the results were compared between the 2 groups to verify the reliability of the system. We obtained good results that matched the confirmed diagnoses of orthopedists with an accuracy of 85.9%.
キーワード X-ray image developmental dislocation of the hip acetabular dysplasia radiographic findings nonlinear multivariate analysis infant hip joint diagnostic support system
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2010-06
64巻
3号
出版者 Okayama University Medical School
開始ページ 189
終了ページ 196
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 20596130
Web of Science KeyUT 000279094300005
JaLCDOI 10.18926/AMO/32098
フルテキストURL fulltext.pdf
著者 Yamamoto, Yasuhiro| Okumura, Yoshihiro| Sato, Shuhei| Maki, Kumi| Mukai, Takashi| Mifune, Hirofumi| Akaki, Shiro| Takeda, Yoshihiro| Kanazawa, Susumu| Hiraki, Yoshio|
抄録 <p>We studied the differentiation of thyroid nodules using fine-needle aspiration biopsy (FNA) and Tl-201 scintigraphy quantitative analysis. One-hundred and thirty-one thyroid nodules were examined: 83 follicular lesions (58 benign and 25 malignant lesions) and 48 non-follicular lesions (8 benign and 40 malignant lesions). During Tl-201 scintigraphy examinations, an early and a delayed image were acquired 10 and 120 min after an intravenous injection, respectively. The T/N ratio (counts of nodular lesion/counts of contralateral normal thyroid tissue) of each image was calculated quantitatively. We assessed the ability of the Tl-201 scintigraphy and of the FNA analysis to differentiate benign and malignant lesions and determined the cut-off levels for the assays. For the follicular lesions, the area under the ROC (Receiver Operating Characteristic) curve (Az) for the Tl-201 scintigraphy data was greater than that for the FNA data. For the non-follicular lesions, the Az for the FNA data was greater than that for the Tl-201 scintigraphy data. We set cut-off levels at 1.370 for follicular lesions, and 1.070 for non-follicular lesions. The sensitivity and specificity were 76% and 82.7% for follicular lesions, and 90% and 87.5% for non-follicular lesions, respectively. The overall accuracy of the analysis was 84.0%.</p>
キーワード ?thyroid nodules fine-needle aspiration biopsy(FNA) Tl-201scintigraphy
Amo Type Article
出版物タイトル Acta Medica Okayama
発行日 2004-04
58巻
2号
出版者 Okayama University Medical School
開始ページ 75
終了ページ 83
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 15255508
Web of Science KeyUT 000221043700003