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Evaluation of overexposure risk when there is a space between the subject and the couch in computed tomography: a phantom study. 计算机断层扫描中被摄体与床之间存在空间时的过度照射风险评估：一项模型研究。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-04-26 DOI: 10.1007/s12194-024-00804-y
Yuta Fujiwara, Yoshiki Kamihoriuchi, Fumie Higuchi, Shinichi Nakayama, Yutako Ohyama, Tomoko Sasaki, Shinsaku Watanabe, Takanori Masuda
{"title":"Evaluation of overexposure risk when there is a space between the subject and the couch in computed tomography: a phantom study.","authors":"Yuta Fujiwara, Yoshiki Kamihoriuchi, Fumie Higuchi, Shinichi Nakayama, Yutako Ohyama, Tomoko Sasaki, Shinsaku Watanabe, Takanori Masuda","doi":"10.1007/s12194-024-00804-y","DOIUrl":"https://doi.org/10.1007/s12194-024-00804-y","url":null,"abstract":"","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140652002","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
Utility of a skin marker-less setup procedure using surface-guided imaging: a comparison with the traditional laser-based setup in extremity irradiation. 使用表面引导成像的无皮肤标记设置程序的实用性：与传统激光四肢照射设置的比较。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-04-26 DOI: 10.1007/s12194-024-00806-w
Kei Yamashita, Takayuki Shimizu, Kanae Miyabayashi, Tsutomu Iwase, Gentaro Togasaki, Ryusuke Hara
{"title":"Utility of a skin marker-less setup procedure using surface-guided imaging: a comparison with the traditional laser-based setup in extremity irradiation.","authors":"Kei Yamashita, Takayuki Shimizu, Kanae Miyabayashi, Tsutomu Iwase, Gentaro Togasaki, Ryusuke Hara","doi":"10.1007/s12194-024-00806-w","DOIUrl":"https://doi.org/10.1007/s12194-024-00806-w","url":null,"abstract":"","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140653126","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
An audit of patient radiation doses during interventional cardiology procedures in Uttarakhand, India, and establishment of local diagnostic reference levels. 对印度北阿坎德邦介入心脏病治疗过程中的患者辐射剂量进行审计，并确定当地的诊断参考水平。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-04-23 DOI: 10.1007/s12194-024-00805-x
S. C. Uniyal, Vikram Singh, Anurag Rawat, Kunal Gururani, Chandra Mohan Belwal
{"title":"An audit of patient radiation doses during interventional cardiology procedures in Uttarakhand, India, and establishment of local diagnostic reference levels.","authors":"S. C. Uniyal, Vikram Singh, Anurag Rawat, Kunal Gururani, Chandra Mohan Belwal","doi":"10.1007/s12194-024-00805-x","DOIUrl":"https://doi.org/10.1007/s12194-024-00805-x","url":null,"abstract":"","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140670092","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 hafnium oxide nanoparticles imaging characteristics as a contrast agent in X-ray computed tomography. 评估氧化铪纳米粒子作为 X 射线计算机断层扫描造影剂的成像特性。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-04-17 DOI: 10.1007/s12194-024-00797-8
Arash Safari, M. Mahdavi, Reza Fardid, Alireza Oveisi, R. Jalli, Masoud Haghani
{"title":"Evaluation of hafnium oxide nanoparticles imaging characteristics as a contrast agent in X-ray computed tomography.","authors":"Arash Safari, M. Mahdavi, Reza Fardid, Alireza Oveisi, R. Jalli, Masoud Haghani","doi":"10.1007/s12194-024-00797-8","DOIUrl":"https://doi.org/10.1007/s12194-024-00797-8","url":null,"abstract":"","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140694641","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
Simulation of time-intensity curve based on k-space filling in breast dynamic contrast-enhanced three-dimensional magnetic resonance imaging. 基于乳腺动态对比增强三维磁共振成像 k 空间填充的时间-强度曲线模拟。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-04-13 DOI: 10.1007/s12194-024-00793-y
Y. Takatsu, Tsuyoshi Ueyama, Takahiro Iwasaki, Tomoko Tateyama, T. Miyati
{"title":"Simulation of time-intensity curve based on k-space filling in breast dynamic contrast-enhanced three-dimensional magnetic resonance imaging.","authors":"Y. Takatsu, Tsuyoshi Ueyama, Takahiro Iwasaki, Tomoko Tateyama, T. Miyati","doi":"10.1007/s12194-024-00793-y","DOIUrl":"https://doi.org/10.1007/s12194-024-00793-y","url":null,"abstract":"","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140708465","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
Cameron's impact on space biomedical sciences-expanding insights to Ng and Doi's article. 卡梅伦对空间生物医学科学的影响--对 Ng 和 Doi 文章的扩展见解。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-04-12 DOI: 10.1007/s12194-024-00801-1
Alireza Mortazavi, S. M. J. Mortazavi
{"title":"Cameron's impact on space biomedical sciences-expanding insights to Ng and Doi's article.","authors":"Alireza Mortazavi, S. M. J. Mortazavi","doi":"10.1007/s12194-024-00801-1","DOIUrl":"https://doi.org/10.1007/s12194-024-00801-1","url":null,"abstract":"","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140708875","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
Patient radiation exposure dose reduction using stent-enhanced image processing in percutaneous coronary intervention. 在经皮冠状动脉介入治疗中使用支架增强图像处理减少患者的辐射暴露剂量。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-04-05 DOI: 10.1007/s12194-024-00796-9
Kazuya Mori, Toru Negishi, Kouhei Makabe, Ryou Sekiguchi, Takuji Tsuchida
{"title":"Patient radiation exposure dose reduction using stent-enhanced image processing in percutaneous coronary intervention.","authors":"Kazuya Mori, Toru Negishi, Kouhei Makabe, Ryou Sekiguchi, Takuji Tsuchida","doi":"10.1007/s12194-024-00796-9","DOIUrl":"https://doi.org/10.1007/s12194-024-00796-9","url":null,"abstract":"","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140736339","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
Monte carlo simulation study on the dose and dose-averaged linear energy transfer distributions in carbon ion radiotherapy. 碳离子放射治疗中剂量和剂量平均线性能量传递分布的蒙特卡罗模拟研究。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-04-03 DOI: 10.1007/s12194-024-00798-7
Akihisa Ishikawa, Yusuke Koba, Takuya Furuta, Weishan Chang, S. Yonai, Shinnosuke Matsumoto, S. Hashimoto, Yuta Hirai, Tatsuhiko Sato
{"title":"Monte carlo simulation study on the dose and dose-averaged linear energy transfer distributions in carbon ion radiotherapy.","authors":"Akihisa Ishikawa, Yusuke Koba, Takuya Furuta, Weishan Chang, S. Yonai, Shinnosuke Matsumoto, S. Hashimoto, Yuta Hirai, Tatsuhiko Sato","doi":"10.1007/s12194-024-00798-7","DOIUrl":"https://doi.org/10.1007/s12194-024-00798-7","url":null,"abstract":"","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140747182","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
The montage method improves the classification of suspected acute ischemic stroke using the convolution neural network and brain MRI. 蒙太奇方法利用卷积神经网络和脑MRI改进了疑似急性缺血性中风的分类。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-03-01 Epub Date: 2023-11-07 DOI: 10.1007/s12194-023-00754-x
Daisuke Oura, Masayuki Gekka, Hiroyuki Sugimori
{"title":"The montage method improves the classification of suspected acute ischemic stroke using the convolution neural network and brain MRI.","authors":"Daisuke Oura, Masayuki Gekka, Hiroyuki Sugimori","doi":"10.1007/s12194-023-00754-x","DOIUrl":"10.1007/s12194-023-00754-x","url":null,"abstract":"<p><p>This study investigated the usefulness of the montage method that combines four different magnetic resonance images into one images for automatic acute ischemic stroke (AIS) diagnosis with deep learning method. The montage image was consisted from diffusion weighted image (DWI), fluid attenuated inversion recovery (FLAIR), arterial spin labeling (ASL), and apparent diffusion coefficient (ASL). The montage method was compared with pseudo color map (pCM) which was consisted from FLAIR, ASL and ADC. 473 AIS patients were classified into four categories: mechanical thrombectomy, conservative therapy, hemorrhage, and other diseases. The results showed that the montage image significantly outperformed pCM in terms of accuracy (montage image = 0.76 ± 0.01, pCM = 0.54 ± 0.05) and the area under the curve (AUC) (montage image = 0.94 ± 0.01, pCM = 0.76 ± 0.01). This study demonstrates the usefulness of the montage method and its potential for overcoming the limitations of pCM.</p>","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71487243","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
Simplified assessment for chemical exchanged saturation transfer (CEST) imaging: local offset frequency and CEST effect. 化学交换饱和转移（CEST）成像的简化评估：局部偏移频率和CEST效应。
IF 1.6
Radiological Physics and Technology Pub Date : 2024-03-01 Epub Date: 2023-10-28 DOI: 10.1007/s12194-023-00752-z
Daiki Chiba, Yuki Kanazawa, Tosiaki Miyati, Masafumi Harada, Mitsuharu Miyoshi, Hiroaki Hayashi, Akihiro Haga
{"title":"Simplified assessment for chemical exchanged saturation transfer (CEST) imaging: local offset frequency and CEST effect.","authors":"Daiki Chiba, Yuki Kanazawa, Tosiaki Miyati, Masafumi Harada, Mitsuharu Miyoshi, Hiroaki Hayashi, Akihiro Haga","doi":"10.1007/s12194-023-00752-z","DOIUrl":"10.1007/s12194-023-00752-z","url":null,"abstract":"<p><p>The aim of this study is to develop a novel phantom for the evaluation of clinical CEST imaging settings, e.g., B<sub>0</sub> and B<sub>1</sub> field inhomogeneities, CEST contrast, and post-processing. We made a phantom composed of two slice sections: a grid section for local offset frequency evaluation and a sample section for CEST effect evaluation using different concentrations of an egg white albumin solution. On a 3 Tesla MR scanner, a phantom study was performed using CEST imaging; the mean B<sub>1</sub> amplitudes were set at 1.2 and 1.9 µT, and CEST images with and without B<sub>0</sub> corrections were acquired. Next, region of interest (ROI) analysis was performed for each slice. Then, CEST images with and without B<sub>0</sub> corrections were compared at each B<sub>1</sub> amplitude. The B<sub>0</sub> corrected Z-spectrums at each local region in the grid section showed a shifting of the curve bottom to 0 ppm. Z-spectrum at B<sub>1</sub> = 1.9 µT showed a broader curve shape than that at 1.2 µT. Moreover, MTR<sub>asym</sub> values at 3.5 ppm for each albumin sample at B<sub>1</sub> = 1.9 µT were about two times higher than those at 1.2 µT. Our phantom enabled us to evaluate and optimize B<sub>0</sub> inhomogeneity and the CEST effect at the B<sub>1</sub> amplitude.</p>","PeriodicalId":46252,"journal":{"name":"Radiological Physics and Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66784465","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
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