Influence of Effective Dose on Patients for Different Z Value During Computed Tomography
- VernacularTitle:计算机断层扫描Z轴扫描位置的选取对患者所受有效剂量的影响
- Author:
Bin LIU
;
Mei BAI
- Publication Type:Journal Article
- Keywords:
tomography;
X-ray computer;
radiation dosage;
radiation monitoring
- From:
Chinese Medical Equipment Journal
2004;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the influence of organ dose and effective dose on patients for different Z value during head,chest and abdomen CT scan. Methods With equispaced displacement on axis Z,organ dose and effective dose was estimated by using SR250 software with commonly used CT exposure parameters. Results Effective dose changed gradually for different Z value,some organ dose was sensitive to the Z location. Conclusion It is necessary to avoid X-ray sensitive organ in CT examination to minimize radiation risk.
