TY - JOUR TI - 冠脉CT血管造影（CT人们试行）VL CM注入协议的个性化 - 2020 PY - 2020 DA - 2020年1月17日DO - 10.1155 /五百四十万七千九百三十六分之二千零二十〇UR - https://doi.org/10.1155 /五百四十万七千九百三十六分之二千〇二十〇AB -目标。基于体重（BW），瘦BW（LBW）和心输出（CO）评估三个造影（CM）注射协议用于心脏计算机断层造影（CCTA）的性能。材料和方法。总共327名连续病人转诊CCTA随机分为三个CM注射协议中的一种，其中，CM注射是基于任一BW（112名患者），LBW（108名患者），或CO（107例）。LBW和CO分别通过公式计算。所有scans were ECG-gated and performed on a third-generation dual-source CT with 70–120 kV (automated tube voltage selection) and 100 kV_qual.ref/330 mAs_qual.ref。CM注射协议也适于扫描时间和管电压。该primary outcome was the proportion of patients with optimal intravascular attenuation (325–500 HU). Secondary outcomes were mean and standard deviation of intravascular attenuation values (HU), contrast-to-noise ratio (CNR), and subjective image quality with a 4-point Likert scale (1 = poor/2 = sufficient/3 = good/4 = excellent). TheŤ-test独立样本被用于组之间的成对比较，和卡方检验（χ2）用于组间分类变量进行比较。所有值分别为2面，和一个被认为是统计显著。结果。Mean overall HU and CNR were 423 ± 60HU/14 ± 3 (BW), 404 ± 62HU/14 ± 3 (LBW), and 413 ± 63HU/14 ± 3 (CO) with a significant difference between groups BW and LBW ( ）。该proportion of patients with optimal intravascular attenuation (325–500 HU) was 83.9%, 84.3%, and 86.9% for groups BW, LBW, and CO, respectively, and between-group differences were small and nonsignificant. Mean CNR was diagnostic (≥10) in all groups. The proportion of scans with good-excellent image quality was 94.6%, 86.1%, and 90.7% in the BW, LBW, and CO groups, respectively. The difference between proportions was significant between the BW and LBW groups.结论。在CCTA的CM注射方案的个性化基于BW，LBW，和CO，和扫描时间和管电压导致血管内衰减和扫描具有最佳血管内衰减高比例的术语患者之间变化小。结果表明，当基于BW CM的注射方案相比，基于低出生体重或CO个性化的CM的注射方案有没有额外的好处。JF - Contrast Media & Molecular Imaging SN - 1555-4309 PB - Hindawi SP - 5407936 KW - A2 - Galli, Filippo AU - Eijsvoogel, N. G. AU - Hendriks, B. M. F. AU - Nelemans, P. AU - Mihl, C. AU - Willigers, J. AU - Martens, B. AU - Wildberger, J. E. AU - Das, M. ER -