Head and Neck Imaging
Dual-source CT Using Tube Current Auto Compensatory Scan to Reduce Radiation dose of Lower Extremities CTA
Author：XUE Shui-pei1 , WAN Su-zhen2 , SHEN Bi-xian1 , et al.
affiliation：1 Nanshan Hospital, Shenzhen 518052, China; 2 Shekou Hospital, Shenzhen 518026, China
PDFAbstract
Objective To investigate the dual-source CT Lower Extremities CTA using tube current auto Compensatory Low voltage scan to reduce radiation dose. Methods A retrospective analysis of 64 cases of dual-source CT Lower Extremities CTA imaging data. According to the different points of the scanning conditions we divided routine group and experimental group 32 cases each. We applied statistical software to analysis two groups of cases the image quality,CTDIvol, DLP, ED, NR, CNR whether statistical significance. Results The routine group respectively:2.75±0.44、4.30±0.21、483.53±35.73、 8.10±0.54、27.43±4.81、23.38±4.61;The experimental group respectively: 2.72±0.46、2.15±0.11、237.09±13.88、3.56±0.21、28.34±4.96、24.14±4.76; Two sets of image quality, SNR, CNR had no statistical significance (P＞0.05); Differences between the two groups CTDIvol, DLP, ED values are statistically significant (P＜0.01), the experimental group were decreased by approximately 50% compared to the routine group. Conclusion The Dual-source CT Lower Extremities CTA using tube current auto Compensatory Low voltage scan to reduce radiation dose effect is obvious.It is a good method worthy of popularizing.
【Keyword】Dual Source CT, Tube Voltage, CARE DOSE 4D, Computed Tomography Angiography, Radiation Dose
【Chart number】R543.5; R445.3
【Document Identification Number】A
【DOI】10.3969/j.issn.1672-5131.2015.06.035
Chinese journal of CT and MRI
th13Volume， th 6 Issue
2015Year06Month
Related articles
Editor email：（1）中国CT和MRI杂志：ctmri@vip.163.com；（2）罕少疾病杂志：hs1999@vip.163.com
Contact number：0755-83695203
Our address：
English
简体中文
logged in
Wechat
TouTiao