双低CT血管造影在胸痛三联症患者中的可行性分析

Feasibility Analysis of Double Low CT Angiography in Patients with Triple-rule-out Chest Pain

目的分析双低CT血管造影在胸痛三联症患者中的可行性。方法回顾我院2017年1月至2019年1月收治的胸痛三联症患者100例,因胸痛、气促、胸闷、呼吸困难入院,其中50例患者接受常规血管造影检查,将其纳入对照组;另有50例患者接受双低CT血管造影检查,纳入观察组。比较两组CT值、有效辐射剂量、图像质量评分、扫描时间、碘剂量、噪声值、对比噪声比、诊断正确性。结果观察组有效辐射剂量小于对照组(P<0.05);CT值高于对照组,差异比较无统计学意义(P>0.05)。观察组患者冠状动脉、主动脉、肺主动脉图像质量评分高于对照组(P<0.05)。观察组患者扫描时间、碘剂量、噪声值、对比噪声比小于对照组(P<0.05)。两组患者诊断正确率均高于90%,差异比较无统计学意义(P>0.05)。结论双低CT血管造影具有图像质量清晰、辐射小、扫描时间短、噪声小等特点,可作为诊断胸痛三联症的常用方法。

Objective To investigate the feasibility of double low CT angiography in patients with triple-rule-out chest pain.Methods Data of 100 triple-rule-out chest pain admitted to our hospital from January 2017 to January 2019 were reviewed;50 patients in the control group received the routine angiography,and another 50 patients in the observation group received the double-low CT angiography.The CT value,effective radiation dose,image quality score,scanning time,iodine dose,noise,contrast noise ratio,and diagnostic accuracy were compared between the two groups.Results The effective radiation dose of the observation group was less than that of the control group(P<0.05);the CT value of the observation group was higher than that of the control group,with no statistical significance(P>0.05).The image quality scores of the corona ry artery,aorta,and pulmona ry aorta in the observation group were higher than those in the control group(P<0.05).The scanning time,iodine dose,noise,and contrast noise ratio of the observation group were lower than those of the control group(P<0.05).The diagnostic accuracy of the two groups was higher than 90%,with no statistical difference(P>0.05).Conclusion Double-low CT angiography has the chara cteristics of clear image quality,low ra diation,short sca n ning time,and low noise,which can be used as a standa rd method in the diagnosis of triplerule-out chest pain.