Exploration the Method of Low Dose Coronary Artery Imaging with Dual-Source CT

• 作者: Bo Xiao Lisha Zhong Zhiwei Huang
• 来源期刊: 生物科学与医学(英文)
• 学科: 医学
• 关键词: Dual-Source CT(DSCT) CORONARY CT ANGIOGRAPHY Low DOSE Noise
• 年，卷（期）: 2013,（1）
• 页码范围: 6-10
• 页数: 5页
• 分类号: R73

摘要

Objective: On the premise that the image quality meets the requirements of clinical diagnosis, we explored the methods to reduce the radiation dose of coronary artery imaging with Dual-Source CT (DSCT). Methods: We randomly selected 200 patients with coronary heat disease (BIM 0.05). The average image noise in group A is (41.76 ± 7.98) HU, in group B the average image noise is (43.97 ± 3.88) HU, the dif- ference between the two groups was not statistically significant (P>0.05). The average CTDIvol of group A and B were (20.63 ± 2.24) mGy, (38.11 ± 10.69) mGy, respectively, then P <0.01. The average DLP of group A and B are (235.75 ± 28.64) mGycm and (492.59 ± 125.49) mGycm respectively, then P <0.01, the dif- ference of radiation dose had statistical significance (P<0.05). Conclusions: For coronary artery imaging with DSCT the heart electric pulse (AUTO) regulation technology can meet the diagnostic requirements and effectively reduce the radiation dose.