Ultra-Fast Image Reconstruction of Tomosynthesis Mammography Using GPU [0.03%]
基于GPU的断层乳腺成像快速图像重建方法研究
D Arefan,A Talebpour,N Ahmadinejhad et al.
D Arefan et al.
Digital Breast Tomosynthesis (DBT) is a technology that creates three dimensional (3D) images of breast tissue. Tomosynthesis mammography detects lesions that are not detectable with other imaging systems. If image reconstruction time is in...
Comparison between Clinically Used Irregular Fields Shielded by Cerrobend and Standard Lead Blocks [0.03%]
临床应用的不规则照射野的蜂蜡挡块与标准铅挡块的对比研究
A R Farajollahi,F Bouzarjomehri,M Kiani
A R Farajollahi
Introduction: In radiation therapy centers across Iran, protection of normal tissues is usually accomplished by either Cerrobend or lead block shielding. In this study, the influence of these two shielding methods on cent...
Assessment of the Radiation Attenuation Properties of Several Lead Free Composites by Monte Carlo Simulation [0.03%]
几种无铅复合材料的辐射衰减性能的蒙特卡罗模拟评估
M Kazempour,M Saeedimoghadam,F Shekoohi Shooli et al.
M Kazempour et al.
Background: In diagnostic radiology lead apron, are usually used to protect patients and radiology staff against ionizing radiation. Lead apron is a desirable shield due to high absorption and effective attenuation of x-r...
A Comparative Study on the Life-Saving Radioprotective Effects of Vitamins A, E, C and Over-the-Counter Multivitamins [0.03%]
维生素A、E、C和非处方复合维生素的救生辐射防护效果比较研究
S M J Mortazavi,S Rahimi,M A Mosleh-Shirazi et al.
S M J Mortazavi et al.
Introduction: Oral intake of vitamins which present antioxidant characteristics can protect living organisms against oxidative damage caused by exposure to ionizing radiation. It was previously reported that administratio...
A New Approach for Heterogeneity Corrections for Cs-137 Brachytherapy Sources [0.03%]
一种新的用于Cs-137后装治疗放射源的异质性修正方法
S Sina,R Faghihi,A S Meigooni
S Sina
Background: Most of the current brachytherapy treatment planning systems (TPS) use the TG-43U1 recommendations for dosimetry in water phantom, not considering the heterogeneity effects. ...
Improvement of Accuracy in Environmental Dosimetry by TLD Cards Using Three-dimensional Calibration Method [0.03%]
基于三维标定方法改进环境剂量监测的个人剂量计TLDCARD读数准确性研究
S J HosseiniAliabadi,S M Hosseini Pooya,H Afarideh et al.
S J HosseiniAliabadi et al.
Introduction: The angular dependency of response for TLD cards may cause deviation from its true value on the results of environmental dosimetry, since TLDs may be exposed to radiation at different angles of incidence fro...
Investigation of Collimator Influential Parameter on SPECT Image Quality: a Monte Carlo Study [0.03%]
准直器对SPECT影像质量的影响因素研究——蒙特卡罗法
Sh Banari Bahnamiri
Sh Banari Bahnamiri
Background: Obtaining high quality images in Single Photon Emission Tomography (SPECT) device is the most important goal in nuclear medicine. Because if image quality is low, the possibility of making a mistake in diagnos...
Evaluation of electron contamination in cancer treatment with megavoltage photon beams: monte carlo study [0.03%]
兆伏光子束癌症治疗中的电子污染评估：蒙特卡罗研究
F Seif,M R Bayatiani
F Seif
Background: Megavoltage beams used in radiotherapy are contaminated with secondary electrons. Different parts of linac head and air above patient act as a source of this contamination. This contamination can increase dama...
Accuracy Evaluation of Oncentra™ TPS in HDR Brachytherapy of Nasopharynx Cancer Using EGSnrc Monte Carlo Code [0.03%]
利用EGSnrc蒙特卡罗程序评价Oncentra™治疗计划系统在鼻咽癌高剂量率近距离放疗中的剂量计算精度
K Hadad,M Zohrevand,R Faghihi et al.
K Hadad et al.
Background: HDR brachytherapy is one of the commonest methods of nasopharyngeal cancer treatment. In this method, depending on how advanced one tumor is, 2 to 6 Gy dose as intracavitary brachytherapy is prescribed. Due to...