双源CT胸痛序列心胸血管一站式成像技术在急性胸痛征患者中的应用分析

Application Analysis of Dual-source CT Chest Pain Sequence Cardiothoracic Vascular One-stop Imaging Technique in Patients with Acute Chest Pain

目的探讨双源CT胸痛序列心胸血管一站式成像技术在急性胸痛征患者中的应用效果。方法便利选取2018年3月—2019年4月接受胸部血管检查的患者88例,为其实施胸痛序列血管成像检查。根据心率确定全剂量曝光时间,心率≤75次/min的患者分为低辐射剂量组(A组,n=20)与常规辐射剂量组(B组,n=22),心率>75次/min的患者分为低辐射剂量组(C组,n=23)与常规辐射剂量组(D组,n=23),比较各组图像质量评分与辐射有效剂量。结果4组的检查图像均满意,图像质量评分差异无统计学意义(P>0.05);B组有效剂量为(6.98±0.84)mSv,高于A组的(4.99±0.28)mSv(P<0.05);D组有效剂量为(4.80±0.80)mSv,高于C组的(2.37±0.34)mSv(P<0.05)。结论心率平稳的急性胸痛患者可应用低剂量胸痛序列诊断,从而为疾病治疗争取时间。

Objective To explore the application effect of dual-source CT chest pain sequence cardiothoracic vascular one-stop imaging technique in patients with acute chest pain.Methods 88 patients who underwent chest vascular examination were convenient selected and subjected to chest pain serial angiography examination from March 2018 to April 2019.Determine the full-dose exposure time according to heart rate.Patients with heart rate≤75 beats/min are divided into low radiation dose group(group A,n=20)and conventional radiation dose group(group B,n=22),heart rate>75 beats/min;the patients were divided into a low radiation dose group(group C,n=23)and a conventional radiation dose group(group D,n=23),and compared image quality score and the effective radiation dose of each group.Results The examination images of the four groups were satisfactory,and there was no statistically significant difference in image quality scores(P>0.05);the effective dose of group B was(6.98±0.84)mSv,which was higher than that of group A(4.99±0.28)mSv(P<0.05);The effective dose of group D was(4.80±0.80)mSv,which was higher than that of group C(2.37±0.34)mSv(P<0.05).Conclusion Patients with acute chest pain with stable heart rate can be diagnosed with low-dose chest pain sequence,so as to buy time for disease treatment.