Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica最新文献_第5页

[Frequency of severe adverse reactions and fatal cases to non-ionic iodine-based contrast media and gadolinium-based contrast media]. [非离子型碘基造影剂和钆基造影剂严重不良反应及死亡病例频次]。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-07-01

Yoshifumi Narumi, Hironobu Nakamura

引用次数: 0

[A case of iatrogenic pseudoaneurysm of the pulmonary artery induced by a Swan-Ganz catheter]. 【Swan-Ganz导管致医源性肺动脉假性动脉瘤1例】。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-07-01

Yuki Inada, Mitsuru Matsuki, Hiroyuki Kani, Isamu Narabayashi, Yoshihisa Fujita

引用次数: 0

[Correlation of effective temporal resolution and accuracy of volume ejection fraction on the ECG-gated cardiac MDCT]. [心电图门控心脏MDCT体积射血分数有效时间分辨率与准确性的相关性]。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-07-01

Yun Shen, Masahiro Jinzaki, Kozo Sato, Sachio Kuribayashi

{"title":"[Correlation of effective temporal resolution and accuracy of volume ejection fraction on the ECG-gated cardiac MDCT].","authors":"Yun Shen, Masahiro Jinzaki, Kozo Sato, Sachio Kuribayashi","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: ECG-gated cardiac MDCT offers many cardiac clinical applications. The goals of this report are 1) to introduce a new concept of effective reliability (ER) from effective temporal resolution for the evaluation of ejection fraction (EF) and evaluation of image quality (IQ) of coronary arteries, and 2) to show the correlation of ER and the accuracy of EF with different cardiac reconstruction algorithms and different rotation speeds.Methods and materials: To assess the accuracy of EF, helical scanning was performed with a gated cardiac MDCT (GE LightSpeed, 8/16 slice) on pulsating cardiac coronary phantoms (0.5 and 0.6 sec rotation speed for each 50-110 bpm, 5-bpm step). We define effective reliability (ER) from effective temporal resolution (%) as follows: ER= (1-TR/HC) x 100; TR: Effective temporal resolution, HC: time of heart cycle in each bpm.Results: From the results of the EF measurement and calculated ER, high accuracy was obtained by using optimal scan conditions (optimal rotation speed and cardiac reconstruction algorithm) in a wide range of heart rates (heart rate<90: EF & ER>81%; heart rate<110 bpm: EF & ER>73%). Results showed that the calculated ER is closely correlated with the measurement results of EF based on the phantom experiment (R2=0.901+/-0.075; Max: 0.994, Min: 0.738). Optimal reconstruction thickness can reduce total image number for the evaluation of EF.Conclusion: We concluded that the ER is useful to evaluate EF accuracy and the IQ of images of coronary arteries.","PeriodicalId":19251,"journal":{"name":"Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica","volume":"65 3","pages":"233-9"},"PeriodicalIF":0.0,"publicationDate":"2005-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25264300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[CT sites and coverage by Radiology Board of Certificates in Japan]. [日本放射学认证委员会的CT站点和覆盖范围]。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-07-01

Yasuo Nakajima

引用次数: 0

[General remarks on brachytherapy]. 【近距离放射治疗综述】。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-07-01

Masamichi Nishio

引用次数: 0

[History of radiation therapy]. [放射治疗史]。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-07-01

Yukio Tateno

引用次数: 0

[Bioprotection by local and whole-body preheating--bioprotection of damage to mice tongue from burning by local preheating of oral cavity and of radiation damage of small intestine from whole-body preheating]. 【局部和全身预热的生物保护——口腔局部预热对小鼠舌头灼烧损伤和全身预热对小肠辐射损伤的生物保护】。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-07-01

Youko H Ito, Shinya Ippongi, Masanori Nakano, Teruhisa Kurabe, Yoshiaki Kazaoka, Tsuneo Ishiguchi

{"title":"[Bioprotection by local and whole-body preheating--bioprotection of damage to mice tongue from burning by local preheating of oral cavity and of radiation damage of small intestine from whole-body preheating].","authors":"Youko H Ito, Shinya Ippongi, Masanori Nakano, Teruhisa Kurabe, Yoshiaki Kazaoka, Tsuneo Ishiguchi","doi":"","DOIUrl":"","url":null,"abstract":"We have reported the cytoprotective effects of HSP 70 on various stress damage induced by mild heating. In this study, we examined the cytoprotective effects of HSP 70 induced by the local preheating of the oral cavity of mice at 42 degrees C for 30 min, and the following results (1-4) were obtained. We also examined the cytoprotective effects against radiation injury by whole-body preheating at 41.3-41.6 degrees C for 30 min (5-6). 1) The concentration of HSP 70 in lymphocytes was increased 2 days after preheating, but not significantly. 2) The concentration of HSP 70 in masseter muscle was significantly increased 2 days after preheating. 3) Under non-heat stress (control), tongue muscle was strongly stained with immunoblotting of HSP 72 antibody, an antibody of induced-type HSP 70. 4) Tongue damage and weight loss of the mice in the preheating group, whose tongues were burned, were less than in the control group. These results showed that HSP 70 induced by local preheating of the oral cavity protected against tongue damage from burning. 5) Radiation injury of the small intestine on HE stain of whole-body radiated mice was obviously reduced by whole-body preheating. 6) Decrease of the ratio of the villus length to the crypt of whole body-irradiated mice was significantly improved by whole-body preheating. From these results, it was concluded that local and whole-body preheating were useful for cytoprotection from stressful damage.","PeriodicalId":19251,"journal":{"name":"Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica","volume":"65 3","pages":"255-62"},"PeriodicalIF":0.0,"publicationDate":"2005-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25264303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[A case of synovial sarcoma in the submandibular region]. [下颌下滑膜肉瘤1例]。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-07-01

Chie Sakata, Toshibumi Kinoshita, Toshio Kaminou, Akira Adachi, Fumiko Kinoshita, Toshihide Ogawa

引用次数: 0

[Optimal phase of dynamic CT for detecting hypervascular hepatocellular carcinoma: evaluation of double arterial phases]. [动态CT检测高血管性肝癌的最佳分期:双动脉期的评价]。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-04-01

Yoriko Kajiya, Kiyohisa Kamimura, Megumi Jinguji, Masayuki Nakajo, Shinsaku Tsuchimochi, Katsumi Sako, Yasuji Komorizono

{"title":"[Optimal phase of dynamic CT for detecting hypervascular hepatocellular carcinoma: evaluation of double arterial phases].","authors":"Yoriko Kajiya, Kiyohisa Kamimura, Megumi Jinguji, Masayuki Nakajo, Shinsaku Tsuchimochi, Katsumi Sako, Yasuji Komorizono","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: To investigate the appropriate time of arterial phase for the detection of hypervascular hepatocellular carcinoma (HCC).Materials and methods: Fifty-two hypervascular HCCs of 36 patients were evaluated on double arterial-phase images of the liver. The first and second arterial-phase images were obtained 10 sec after aortic peak enhancement time as determined by test bolus injection. Patients received a low or high concentration of contrast medium, according to their body weight, that was administered intravenously at a rate of 4 mL/sec and injection duration of 23 sec. Three radiologists evaluated the images separately.Results: Sensitivity in detecting hypervascular HCCs was higher in the first arterial phase than in the second arterial phase (p = 0.039). HCCs were not detected as hypervascular nodules in one of 20 cases during 31 or fewer sec, or in 8 of 19 cases during 48 or more sec after the initiation of contrast medium injection. All nodules were detected as hypervascular lesions between 32 and 47 sec after the initiation of contrast medium injection.Conclusion: When a single arterial phase is obtained to detect hypervascular HCCs with a 23-sec injection time and an injection rate of 4 mL/sec, a protocol is recommended in which scanning is started at 35 sec and ended within 47 sec after initiating the injection of contrast medium.","PeriodicalId":19251,"journal":{"name":"Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica","volume":"65 2","pages":"99-104"},"PeriodicalIF":0.0,"publicationDate":"2005-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40935022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Evaluation of pulmonary hypoplasia with congenital diaphragmatic hernia]. 肺发育不全合并先天性膈疝的评价。

Nihon Igaku Hoshasen Gakkai zasshi. Nippon acta radiologica Pub Date : 2005-04-01

Shigeko Kuwashima

引用次数: 0