Application Value of Adapted Prospective ECG-triggering CCTA in Patients with High Heart Rates and Single Ventricular Premature Beats
YANG Ren-jie
ZHA Yun-fei
PENG Zhou-feng
ZHANG Yu
HUANG Dong-jie
Abstract：Objective To investigate the application value of adapted prospective electrocardiogram(ECG)-triggering coronary computed tomography angiography (CCTA) in patients with high heart rates and single ventricular premature beats(VPBs).Methods Adapted prospective ECG-triggering CCTA was performed on high heart rates patients with single VPBs (80 bpm≤HR≤120 bpm) during earlier scans.The patients displayed single VPBs during computed tomography angiography (CTA) scanning were involved into VPBs group,meanwhile,the patients without single VPBs during CTA scanning were collected in non-VPBs group.The high heart rates patients (80 bpm≤HR≤120 bpm) with normal heart rhythm used retrospective ECG-triggering CCTA scanning were collected in control group.The image quality scores,diagnostic rates and effective radiation doses of three groups were compared.Results The CCTA image quality scores of VPBs,non-VPBs and control group were (3.4 ± 0.8),(3.4 ± 0.7),(3.2 ± 0.8) mSv,respectively.There was significantly different in the image quality scores between VPBs and non-VPBs group (P =0.989),and the image quality scores of VPBs and non-VPBs group were higher than these of control group (P =0.000).The diagnostic rates of VPBs,non-VPBs and control group were 91.5％、89.1％、87.6％,respectively.The diagnostic rate of VPBs group was higher than that of non-VPBs group (P =0.040),and no differences were found between non-VPBs and control group (P＞0.05).The effective radiation doses of VPBs,non-VPBs and control group were (3.4 ± 0.8),(3.4 ± 0.7) and (10.5 ±2.1) mSv,respectively.The effective radiation doses of VPBs and non-VPBs group were lower than that of control group (P =0.000).Conclusion Adapted prospective ECG-triggering CCTA can effectively reduce the receiving radiation doses of high heart rates patients with single ventricular premature beats,and also improve the image qualities.
Keywords：Computed tomography angiographyCoronary CT angiographyAdaptive triggeringProspective ECG-triggeringVentricular premature beats
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 522-526 )