Application of one-beat acquisition with wide detector CT in coronary artery CT angiography of patients with atrial fibrillation

Shumeng Zhu; Xing LI; Xiaoqian Jia; Qian Tian; Zhefan Song; Tingting QU; Le Cao; Jianxin Guo

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Application of one-beat acquisition with wide detector CT in coronary artery CT angiography of patients with atrial fibrillation

VernacularTitle:宽体探测器CT one-beat采集技术在房颤患者冠状动脉CT血管成像中的应用
Author: Shumeng ZHU ¹ ; Xing LI ¹ ; Xiaoqian JIA ¹ ; Qian TIAN ¹ ; Zhefan SONG ¹ ; Tingting QU ¹ ; Le CAO ¹ ; Jianxin GUO ¹
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1. Department of Medical Imaging, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
Publication Type:Journal Article
Keywords: atrial fibrillation; coronary CT angiography; image quality; diagnostic efficacy
From: Journal of Xi'an Jiaotong University(Medical Sciences) 2023;44(6):977-982
CountryChina
Language:Chinese
Abstract: 【Objective】 To evaluate the effect of one-beat acquisition with wide detector CT on the image quality and diagnostic efficiency of coronary CT angiography (CCTA) in patients with atrial fibrillation. 【Methods】 A total of 52 consecutive patients with atrial fibrillation, including 31 males, (67.32±11.45) years old, who underwent CCTA from July 2022 to February 2023, were analyzed retrospectively. All patients underwent one-beat acquisition CCTA. The subjective and objective image quality of the coronary arteries was evaluated, and using invasive coronary catheter angiography as the gold standard, the diagnostic efficacy of stenosis degrees above moderate and severe degrees was calculated, respectively. 【Results】 Subjective evaluation results: 92.31% (384/416) of the vascular segments were rated as excellent or good, and the diagnosable rate reached 98.08% (408/416, subjective score ≥3 points). Objective evaluation results: The CT value of the right coronary artery, anterior descending branch, and circumflex branch was (433.41±95.17)HU, (422.69±92.81)HU and (420.27±95.43)HU, respectively; the contrast-to-noise ratio was 38.46±7.54, 32.46±13.78 and 37.74±8.89, respectively. The total diagnostic accuracy, sensitivity, and specificity was 94.71%, 87.9% and 96.62%, respectively, for moderate stenosis and 96.15%, 83.64% and 98.06% for severe stenosis. 【Conclusion】 One-beat acquisition with wide detector CT can obtain high-quality coronary artery images and high diagnostic accuracy for patients with atrial fibrillation without radiation dose increase to patients. It has good clinical application value for patients with atrial fibrillation.