宽体探测器CT在头-颈-心脏CTA联合扫描中的应用研究

Application and Research of wide detector CT in head-neck-heart CTA combined scanning

目的本文将探究宽体探测器CT在头-颈-心脏CTA联合扫描中的应用价值。方法收集本科室2021年1至6月份期间的患者病例60例并逐一编号。其中男33例,女27例,均为拟诊治心脑血管疾病的患者,按照随机数分配分为A、B两组:两组各30例,A组进行头-颈-心CTA联合扫描。B组进行常规头颈部血管CTA及冠状动脉CTA扫描。对两组图像采用同一标准的主观评分,随后进行客观数据测量,包括兴趣区CT值、SD值、辐射剂量及对比剂用量。结果两组患者在年龄(P=0.085)、体重(P=0.332)、BMI(P=0.434)、性别(P=0.288)统计中的差异均无统计学意义(P>0.05);A、B组在冠状动脉与头颈部血管的主观图像质量评分中差异均无统计学意义(A、B组冠状动脉评分达到5分的分别为28、27例,头颈动脉评分达到5分均为27例,P>0.05);两组图像在CT值和SD值的测量中差异无统计学意义(P>0.05);A组与B组对比剂使用量显著减少(A组60m L,B组90m L,减少33.3%);两组图像的辐射剂量值差异无统计学意义(A组CTDIvol平均值为30.09±5.50m Gy、DLP平均值564.21±59.55m Gy.c m、E D平均值为4.31±0.62 m S v;B组CTDIvol平均值为17.78±6.21m Gy,DLP平均值为404.32±69.11m Gy.cm,ED平均值为1.25±0.21m Sv;P>0.05)。结论宽体探测器CT进行头-颈-心脏CTA联合扫描成功率高,减少患者检查次数,对比剂用量减少,且图像能够满足诊断的需求,可以替代重复心脏CTA及头颈部CTA扫描,值得列入常规扫描方案进行临床推广。

Purpose This article will explore the application value of wide-body detector CT in head-neck-heart CTA combined scanning.Methods Collect 60 patient cases from January to June of 2021 in the undergraduate room and number them one by one.There were 33 males and 27 females,all of whom were intended to diagnose and treat cardiovascular and cerebrovascular diseases.They were divided into two groups A and B according to random numbers:30 cases in each group,and group A underwent head-neck-cardiac CTA combined scan.In group B,routine head and neck vascular CTA and coronary CTA scans were performed.The same standard subjective scoring was used for the two sets of images,and then objective data measurements were carried out,including the CT value of the area of interest,SD value,radiation dose and contrast agent consumption.Results There were no statistically significant differences in age(P=0.085),weight(P=0.332),BMI(P=0.434),gender(P=0.288)between the two groups of patients(all P>0.05);There were no statistically significant differences in the subjective image quality scores of the coronary arteries and head and neck vessels between the two groups(P>0.05),and the differences in CT values and SD values were not statistically significant(P>0.05);Group A and B The amount of contrast agent used in group A was significantly reduced(60ml in group A,90ml in group B,a reduction of 33.3%);there was no significant difference in radiation dose values between the two groups(the average CTDIvol in group A was 30.09±5.50mGy,and the average DLP was 564.21±59.55mGy.cm,ED average value is 4.31±0.62mSv;group B CTDIvol average value is 17.78±6.21mGy,DLP average value is 404.32±69.11mGy.cm,ED average value is 1.25±0.21mSv;P>0.05).Conclusion Wide-body detector CT for head-neck-heart CTA scan has a high success rate,reduces the number of patient examinations,reduces the amount of contrast medium,and the image can meet the needs of diagnosis,and can replace repeated cardiac CTA and head and neck CTA scans.It is worthy of being included in the routine scanning program for clinical promotion.