{"title":"设计一种改进型的成年女性 ICRP 参考模型,专用于乳腺 X 射线照相术。","authors":"Atiyeh Ebrahimi-Khankook, Alireza Vejdani-Noghreiyan, Hamidreza Khodajou-Chokami, Zahra Abbasi-Khiabani","doi":"10.1088/1361-6498/ad455e","DOIUrl":null,"url":null,"abstract":"<p><p>Mammography is an x-ray-based imaging method to examine breast abnormalities. Since low-energy photons are used in mammography, doses to different organs would depend strongly on the phantom posture and anatomy. Until now, a few studies have been performed on doses delivered to different organs during mammography. However, in none of them, the correct posture of the patient has been considered. In the present study, the effect of accurate patient positioning, on doses to organs in the chest region were investigated through Monte Carlo simulations. The results show the rotation of the phantom head, may affect organ doses up to 60%. Also, ignoring the head in dosimetry calculations changes scattering effects and causes dose uncertainty of about 8% for these organs. Moreover, according to the obtained results, not compressing the breast causes serious dose misestimation. Finally, using developed phantoms dedicated for mammography, total doses received by different organs have been calculated for the tube voltages of 25, 28, 30 and 35 kVp and for craniocaudal and mediolateral oblique views.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Designing an improved model of the adult female ICRP reference phantom dedicated to mammography procedure.\",\"authors\":\"Atiyeh Ebrahimi-Khankook, Alireza Vejdani-Noghreiyan, Hamidreza Khodajou-Chokami, Zahra Abbasi-Khiabani\",\"doi\":\"10.1088/1361-6498/ad455e\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Mammography is an x-ray-based imaging method to examine breast abnormalities. Since low-energy photons are used in mammography, doses to different organs would depend strongly on the phantom posture and anatomy. Until now, a few studies have been performed on doses delivered to different organs during mammography. However, in none of them, the correct posture of the patient has been considered. In the present study, the effect of accurate patient positioning, on doses to organs in the chest region were investigated through Monte Carlo simulations. The results show the rotation of the phantom head, may affect organ doses up to 60%. Also, ignoring the head in dosimetry calculations changes scattering effects and causes dose uncertainty of about 8% for these organs. Moreover, according to the obtained results, not compressing the breast causes serious dose misestimation. Finally, using developed phantoms dedicated for mammography, total doses received by different organs have been calculated for the tube voltages of 25, 28, 30 and 35 kVp and for craniocaudal and mediolateral oblique views.</p>\",\"PeriodicalId\":50068,\"journal\":{\"name\":\"Journal of Radiological Protection\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2024-06-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Radiological Protection\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1088/1361-6498/ad455e\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radiological Protection","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1088/1361-6498/ad455e","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
乳房 X 射线照相术是一种基于 X 射线的成像方法,用于检查乳房异常。由于乳房 X 射线照相术使用的是低能量光子,因此不同器官所受的剂量在很大程度上取决于人体模型姿势和解剖结构。迄今为止,关于乳腺 X 射线照相术中不同器官所受剂量的研究为数不多。但是,这些研究都没有考虑病人的正确姿势。在本研究中,通过蒙特卡洛模拟研究了准确的患者定位对胸部区域器官所受剂量的影响。结果显示,模型头部的旋转对器官剂量的影响可达 60%。此外,在剂量测定计算中忽略头部会改变散射效应,导致这些器官的剂量不确定性约为 8%。此外,根据所得结果,不压缩乳房会导致严重的剂量估计错误。最后,利用开发的乳腺 X 射线摄影专用模型,计算了 25、28、30 和 35 kVp 的管电压以及头颅尾侧和内外侧斜视图下不同器官接收到的总剂量。
Designing an improved model of the adult female ICRP reference phantom dedicated to mammography procedure.
Mammography is an x-ray-based imaging method to examine breast abnormalities. Since low-energy photons are used in mammography, doses to different organs would depend strongly on the phantom posture and anatomy. Until now, a few studies have been performed on doses delivered to different organs during mammography. However, in none of them, the correct posture of the patient has been considered. In the present study, the effect of accurate patient positioning, on doses to organs in the chest region were investigated through Monte Carlo simulations. The results show the rotation of the phantom head, may affect organ doses up to 60%. Also, ignoring the head in dosimetry calculations changes scattering effects and causes dose uncertainty of about 8% for these organs. Moreover, according to the obtained results, not compressing the breast causes serious dose misestimation. Finally, using developed phantoms dedicated for mammography, total doses received by different organs have been calculated for the tube voltages of 25, 28, 30 and 35 kVp and for craniocaudal and mediolateral oblique views.
期刊介绍:
Journal of Radiological Protection publishes articles on all aspects of radiological protection, including non-ionising as well as ionising radiations. Fields of interest range from research, development and theory to operational matters, education and training. The very wide spectrum of its topics includes: dosimetry, instrument development, specialized measuring techniques, epidemiology, biological effects (in vivo and in vitro) and risk and environmental impact assessments.
The journal encourages publication of data and code as well as results.