Image Quality and Radiation Dose for Prospectively Triggered Coronary CT Angiography: 128-Slice Single-Source CT versus First-Generation 64-Slice Dual-Source CT.
Image Quality and Radiation Dose for Prospectively Triggered Coronary CT Angiography: 128-Slice Single-Source CT versus First-Generation 64-Slice Dual-Source CT.
复制标题
前瞻性触发冠状动脉 CT 血管造影的图像质量和辐射剂量：128 层单源 CT 与第一代 64 层双源 CT
DOI：
10.1038/srep34795
复制
发表时间：
2016-10-18
影响因子：
4.6
通讯作者：
Wu S
中科院分区：
文献类型：
--
作者：
Gu J;Shi HS;Han P;Yu J;Ma GN;Wu S
本研究旨在比较前瞻性触发 128 层 CT (128-MSCT) 与双源 64 层 CT (DSCT) 进行冠状动脉计算机断层扫描血管造影 (CCTA) 的图像质量和辐射剂量。该研究经华中科技大学同济医学院医学伦理委员会批准。连续 80 名心率稳定低于 70 次/分钟的患者被纳入研究。 40 名患者接受 128-MSCT 扫描，另外 40 名患者接受 DSCT 扫描。两名放射科医生根据三分制（1：优秀；2：中等；3：不足）独立评估分段（直径> 1mm）的图像质量。计算CCTA辐射剂量。对 80 名患者进行了评估，128-MSCT 组有 526 个节段，DSCT 组有 544 个节段。图像质量1、2、3评分，128-MSCT组分别为91.6%、6.9%和1.5%，DSCT组分别为97.6%、1.7%和0.7%，组间差异有统计学意义（P≤ 0.001）。 128-MSCT组有效剂量为3.0 mSv，DSCT组有效剂量为4.5 mSv（P≤0.001）。与DSCT相比，前瞻性触发128-MSCT的CCTA具有足够的图像质量和低33.3%的辐射剂量。
This study sought to compare the image quality and radiation dose of coronary computed tomography angiography (CCTA) from prospectively triggered 128-slice CT (128-MSCT) versus dual-source 64-slice CT (DSCT). The study was approved by the Medical Ethics Committee at Tongji Medical College of Huazhong University of Science and Technology. Eighty consecutive patients with stable heart rates lower than 70 bpm were enrolled. Forty patients were scanned with 128-MSCT, and the other 40 patients were scanned with DSCT. Two radiologists independently assessed the image quality in segments (diameter >1 mm) according to a three-point scale (1: excellent; 2: moderate; 3: insufficient). The CCTA radiation dose was calculated. Eighty patients with 526 segments in the 128-MSCT group and 544 segments in the DSCT group were evaluated. The image quality 1, 2 and 3 scores were 91.6%, 6.9% and 1.5%, respectively, for the 128-MSCT group and 97.6%, 1.7% and 0.7%, respectively, for the DSCT group, and there was a statistically significant inter-group difference (P≤ 0.001). The effective doses were 3.0 mSv in the 128-MSCT group and 4.5 mSv in the DSCT group (P≤ 0.001). Compared with DSCT, CCTA with prospectively triggered 128-MSCT had adequate image quality and a 33.3% lower radiation dose.
登录
查看更多内容
影响因子：
6.7
作者：
Hermann, Franziska;Martinoff, Stefan;Hausleiter, Joerg
通讯作者：
Hausleiter, Joerg
影响因子：
6.7
作者：
Gerber, TC;Stratmann, BP;Morin, RL
通讯作者：
Morin, RL
影响因子：
2.6
作者：
Duarte, Ricardo;Fernandez, Gabriel;Costa, Joao C.
通讯作者：
Costa, Joao C.
影响因子：
5.9
作者：
Arnoldi, Elisabeth;Johnson, Thorsten R.;Nikolaou, Konstantin
通讯作者：
Nikolaou, Konstantin
影响因子：
19.7
作者：
Hamon, Michele;Morello, Remy;Hamon, Martial
通讯作者：
Hamon, Martial