低剂量对比剂肺动脉CTA检查在急性肺动脉栓塞诊断中的应用价值分析  

Analysis of the Application Value of Low-dose Contrast Agent Pulmonary Artery CTA Examination in the Diagnosis of Acute Pulmonary Embolism

作　　者：宋福遥 刘巧林[1] SONG Fu-Yao;LIU Qiao-Lin(Department of Radiology,Pizhou Traditional Chinese Medicine Hospital,Jiangsu 221300,China)

机构地区：[1]江苏省邳州市中医院放射科,江苏221300

出　　处：《影像技术》2024年第1期24-28,共5页Image Technology

摘　　要：目的:探究低剂量对比剂肺动脉CTA检查在急性肺动脉栓塞诊断中的应用价值。方法:选取59例急性肺动脉栓塞患者作为研究对象,将患者分成两组(其中使用常规剂量对比剂患者29例,低剂量对比剂患者30例),所有数据均在后处理工作站行多平面重组技术(multi planar reformatting,MRP)、最大密度投影(maximum intensity projection,MIP)和容积重现(volume rendering,VR)后处理,由两名高年资(副主任职称以上)医生采用双盲法行图像质量主观评价,并在工作站分析患者肺动脉CTA图像中肺动脉干及两下肺动脉CT值用统计学方法比较、肺动脉栓子检出情况对比进行客观评价。结果:常规剂量对比剂肺动脉CTA与低剂量对比剂肺动脉CTA图像质量在主观评估方面无明显差异,两组肺动脉干、两下肺动脉CT值差异无统计学意义(P>0.05)及肺静脉CT值差异有统计学意义(P<0.05),肺动脉栓子检出情况对比无差别。结论:低剂量对比剂肺动脉CTA图像质量主观评价无明显差异,客观评估无统计学意义,并且肺动脉栓子检出情况对比无明显差异,对肺动脉栓塞的诊断无影响,且所用造影剂剂量较少,故低剂量对比剂肺动脉CTA在肺栓塞诊断中的临床应用价值显著,有效降低了对比剂的使用量,为临床医师及时采取有效治疗方案提供有力的依据,值得广泛地推广应用。Objective:Exploring the application value of low-dose contrast agent pulmonary artery CTA examination in the diagnosis of acute pulmonary embolism.Methods:59 patients with acute pulmonary embolism were selected as the study subjects,and they were divided into two groups(29 patients using conventional dose contrast agents and 30 patients using low-dose contrast agents).All data were processed using Multi-Planar Reforming(MPR),Maximum Intensity Projection(MIP),and Volume Rendering(VR)post-processing at the post-processing workstation.Two senior doctors(with associate director titles or above)used a double-blind method to subjectively evaluate the image quality,and analyzed the CT values of the pulmonary artery trunk and two lower pulmonary arteries in the patient's pulmonary artery CTA images using statistical methods.Objective evaluation of the detection of arterial emboli.Results:There was no significant difference in subjective evaluation of image quality between conventional dose contrast agent pulmonary artery CTA and low-dose contrast agent pulmonary artery CTA.There was no statistically significant difference in CT values between the two groups of pulmonary artery trunk and lower pulmonary arteries(P>0.05),and there was a statistically significant difference in CT values between pulmonary veins(P<0.05).There was no difference in the detection of pulmonary embolism between the two groups.Conclusion:The subjective evaluation of low-dose contrast agent pulmonary artery CTA image quality showed no significant difference,and the objective evaluation showed no statistical significance.Moreover,there was no significant difference in the detection of pulmonary embolism,which had no impact on the diagnosis of pulmonary embolism.Moreover,the dosage of contrast agent used was relatively small.Therefore,the clinical application value of low-dose contrast agent pulmonary artery CTA in the diagnosis of pulmonary embolism is significant,effectively reducing the amount of contrast agent used,Providing a strong basis for cli

关 键 词：肺动脉栓塞 肺动脉CTA 诊断 低剂量对比剂 CT 

分 类 号：R543.2[医药卫生—心血管疾病]