Nihon Hoshasen Gijutsu Gakkai zasshi最新文献_第3页

[Trends in the Standardization of Medical Image Display Devices in 2025]. 【2025年医学影像显示设备标准化趋势分析】。

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-0508

Takayuki Kasahara

引用次数: 0

[5. Clinical Operation of Ring-type Radiation Therapy System Equipped with Artificial Intelligence]. (5。人工智能环型放射治疗系统的临床操作[j]。

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-0101

Masahiko Toyota

引用次数: 0

[Evaluation of Reproducibility in Left Breast Deep Inspiration Breath-hold Irradiation Using Quantitative Assessment Software]. 用定量评估软件评价左乳深吸气屏气照射的再现性

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-1470

Tomoki Harukuni, Kenji Matsumoto, Kengo Kosaka, Taishi Matsuda

引用次数: 0

[Development of an Information Aggregation System for a Multidisciplinary Team in Medical Education]. [医学教育多学科团队信息聚合系统的开发]。

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-1517

Hayato Tsuno, Koji Sasaki, Hiroshi Igarashi

{"title":"[Development of an Information Aggregation System for a Multidisciplinary Team in Medical Education].","authors":"Hayato Tsuno, Koji Sasaki, Hiroshi Igarashi","doi":"10.6009/jjrt.25-1517","DOIUrl":"10.6009/jjrt.25-1517","url":null,"abstract":"Purpose: Typically, grades are compiled using spreadsheet software, and the file is then emailed with the password sent in a separate email. The government has pointed out that this method does not provide robust security. Introducing a new system is difficult due to the psychological factor of status quo bias. Therefore, we devised a new grade compilation system that uses spreadsheet software that can be easily implemented. The research aims to develop an automatic grade compilation system that implements RSA encryption.Methods: As Excel's specifications do not allow for the display of more than 16 significant digits, we devised a method of applying modular exponentiation to modular arithmetic. The time required for encryption was measured five times and the average value was calculated.Results: The time required for encryption was approximately 2.3 seconds, and RSA encryption is highly secure, it has the advantage of being able to distribute files with e-mail, and a paperless workflow could be established.Conclusion: The developed system is highly secure and can be sent via email, and its automation is effective as a means of preventing disputes caused by human error.","PeriodicalId":74309,"journal":{"name":"Nihon Hoshasen Gijutsu Gakkai zasshi","volume":"81 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143461039","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

[Comparison of CT-like Images Using MRI]. [ct样图像与MRI的比较]。

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-1467

Ryosuke Fujii, Masayoshi Sugimura, Masakazu Kurita

引用次数: 0

[National Survey on System Settings of Angiography for Endovascular Treatment for Lower Extremity Arterial Disease]. 全国下肢动脉疾病血管内治疗血管造影系统设置调查

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-1530

Yuji Sakai, Tomomichi Ishibashi, Yoshinori Takao, Toru Ishibashi, Yudai Fujimoto, Mitsuharu Osawa, Akihiro Shinobu, Kenji Hasegawa, Hajime Sakamoto

{"title":"[National Survey on System Settings of Angiography for Endovascular Treatment for Lower Extremity Arterial Disease].","authors":"Yuji Sakai, Tomomichi Ishibashi, Yoshinori Takao, Toru Ishibashi, Yudai Fujimoto, Mitsuharu Osawa, Akihiro Shinobu, Kenji Hasegawa, Hajime Sakamoto","doi":"10.6009/jjrt.25-1530","DOIUrl":"https://doi.org/10.6009/jjrt.25-1530","url":null,"abstract":"Purpose: The objective of this study was to determine the standard settings of the angiography system during EVT in Japan.Methods: Survey requests were mailed to 493 facilities across Japan. The survey items included in the survey were system display dose setting of fluoroscopy dose (FL dose)/digital angiography dose (DA dose)/digital subtraction angiography dose (DSA dose), detector size, fluoroscopy pulse rate, DA/DSA frame rate, and standard additional filter settings. The number of valid responses for each item was system display dose setting: 187 systems (128 institutions), detector size: 187 systems (128 institutions), fluoroscopy pulse rate and DA/DSA frame rate: 185 systems (127 institutions), standard additional filter settings: 182 systems (125 institutions).Results: Median (interquartile range) of each system display dose setting was FL: 5.9 (4.2-7.8) mGy/min, DA: 0.10 (0.06-0.16) mGy/frame, DSA: 0.82 (0.64-1.40) mGy/frame. The detector size for dose measurements was 103 systems (55%) with a diagonal of 35 cm or less and 84 systems (45%) with a diagonal of more than 35 cm. The most used FL pulse rate was 7.5 pulse/s (132 systems: 71%), DA frame rate was 7.5 frame/s (72 systems: 39%), and DSA frame rate was 3 frame/s (97 systems: 52%). More than 90% of the institutions used some kind of additional filter for imaging.Conclusion: This survey showed the standard setting of the angiography system during EVT in Japan.","PeriodicalId":74309,"journal":{"name":"Nihon Hoshasen Gijutsu Gakkai zasshi","volume":"81 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144061525","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

[Paper Review: Compton Imaging for Medical Applications]. [论文综述：康普顿成像的医学应用]。

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-0401

Makoto Sakai

引用次数: 0

[Simulation Image Generation Used to Produce Contrast-detail Diagram in X-ray CT]. [用于制作 X 射线 CT 对比细节图的模拟图像生成]。

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-1443

Kenichi Sakai, Masaki Ohkubo, Akihiro Narita, Naoya Takahashi, Yoshiyuki Noto

{"title":"[Simulation Image Generation Used to Produce Contrast-detail Diagram in X-ray CT].","authors":"Kenichi Sakai, Masaki Ohkubo, Akihiro Narita, Naoya Takahashi, Yoshiyuki Noto","doi":"10.6009/jjrt.25-1443","DOIUrl":"10.6009/jjrt.25-1443","url":null,"abstract":"Purpose: To propose a method for generating simulated images that are used to produce a contrast detail (C-D) diagram in X-ray computed tomography (CT).Methods: We numerically generated object functions assuming ideal spheres of 7 diameters and 9 contrasts between sphere density and background density. Sphere images were calculated from the object functions by the simulation technique of image blurring based on the 3-dimensional spatial resolution measured in the CT system. The calculated sphere images were added in images of the uniform water-equivalent section of a phantom acquired at different tube currents. Obtained images were arranged according to the sphere diameter and contrast and were applied to produce the C-D diagram. For each tube current, the C-D diagram was created by a board-certified diagnostic radiologist.Results: The calculated sphere images showed good agreements with actually acquired sphere images of the phantom. Standard deviations (SDs) in subtraction images of them were equivalent to the SD in the background region of the actual image, suggesting the accuracy of the calculated sphere images. The obtained C-D diagram showed that smaller spheres and spheres with lower contrast tended to be detected as the tube current increased.Conclusion: The proposed method was suggested to be feasible for producing the C-D diagram for CT.","PeriodicalId":74309,"journal":{"name":"Nihon Hoshasen Gijutsu Gakkai zasshi","volume":"81 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143797361","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

[Global Business Solution Using WTO/TBT Agreement]. [使用WTO/TBT协议的全球商业解决方案]。

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-0203

Yuji Yanagida

引用次数: 0

[Radioproteomics for Discriminating the Activity and Inactivity of Immune Checkpoint Molecules in Breast Cancer]. 放射蛋白质组学用于鉴别乳腺癌免疫检查点分子的活性和不活性。

Nihon Hoshasen Gijutsu Gakkai zasshi Pub Date : 2025-01-01 DOI: 10.6009/jjrt.25-0301

Fuyu Harada

引用次数: 0