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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

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