获取途径

作者

Zengkun Wang, Guoyue Chen, Dewei Song, Xiaodie Xu, Chu Chu, Shuning Zhang, Huijing Chai, Hairong Yu, Xiaomei Luan, Peiji Song

作者单位

Affiliations ¹ Shandong Second Medical University, Weifang City, Shandong Province, China. ² Department of Radiology, Central Hospital Affiliated to Shandong First Medical University, Jinan City, Shandong Province, China. ³ Department of Radiology, Shandong University Dezhou Second People's Hospital, Dezhou City, Shandong Province, China. ⁴ Department of Radiology, Central Hospital Affiliated to Shandong First Medical University, Jinan City, Shandong Province, China. 1597292215@qq.com.

刊名

BMC cardiovascular disorders

年份

2025

卷号

Vol.25 No.1

页码

15

ISSN

1471-2261

关键词

COPD Coronary CTA HR-based protocol Low volume of contrast medium.

摘要

Background: The personalized, free-breathing, heart rate-dependent computed tomography angiography protocol can significantly reduce the utilization of contrast medium . This proves especially beneficial for patients with chronic obstructive pulmonary disease undergoing coronary artery CTA examinations. Objective: The aim of this study was to evaluate the feasibility of a personalized CT scanning protocol that was tailored to patients' heart rate and free-breathing for coronary CTA of patients...更多

Background: The personalized, free-breathing, heart rate-dependent computed tomography angiography protocol can significantly reduce the utilization of contrast medium . This proves especially beneficial for patients with chronic obstructive pulmonary disease undergoing coronary artery CTA examinations. Objective: The aim of this study was to evaluate the feasibility of a personalized CT scanning protocol that was tailored to patients' heart rate and free-breathing for coronary CTA of patients with COPD. Methods: A total of 400 patients with COPD who need to undergo the coronary CTA were prospectively randomized into two groups . Group A underwent CTA following a traditional protocol . The timing of the scans in Group B was determined according to the patient's HR and free-breathing . Results: No difference was found between the two groups in the CT values of RCA, LA, or LCX; . Subjective ratings of image quality were not statistically different between the two groups . Conclusion: By adopting a heart-rate dependent and free-breathing protocol, the contrast medium volume were reduced in coronary CTA for patients with COPD, while the image quality was remained comparable to those acquired with routine CTA protocol.收起

文献类型

期刊

浏览量

12