Correlation analysis between patient stature-based optimization of image acquisition parameters and low-dose coronary angiography
10.3969/j.issn.1004-8812.2024.04.002
- VernacularTitle:基于患者身材的影像采集参数优化与冠状动脉造影低剂量化的相关性分析
- Author:
Hai QIAN
1
;
Yu-Qin ZHANG
;
Ke-Nan LOU
;
De-Xing HU
Author Information
1. 宁波市医疗中心李惠利医院心内科,浙江宁波 315040
- Keywords:
Coronary angiography;
Image acquisition;
Low radiation dose;
Image quality
- From:
Chinese Journal of Interventional Cardiology
2024;32(4):191-196
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the correlation among image acquisition parameter optimization,coronary angiography radiation dose and image quality.Methods 60 patients scheduled for elective percutaneous coronary angiography from January 2022 to January 2024 in our hospital were selected.Basic information and body measurements were collected.Patients were divided into three groups based on BMI,and patients in each BMI group were randomly assigned to the conventional mode group(coronary mode image acquisition:Cardiac Left Coronary,15fps)and the optimized mode group(electrophysiology mode image acquisition:Cardiac EP,7.5fps).Radiation dose data were collected.Image quality was evaluated using an image quality scoring table.Independent sample t-tests,Mann-Whitney U tests,and one-way ANOVA were used for comparisons between groups.Pearson analysis was used for correlations.Results Higher BMI and larger chest circumference were associated with higher radiation doses in a positive linear correlation.Within each BMI group,all radiation dose data(Dose-Area Product,Air Kerma and Chest skin dose)were lower in the optimized mode group than in the conventional mode group(all P＜0.05,reduction rate 48.95％-70.59％).The difference in image quality scores between two groups was not statistically significant(P＞0.05),and all images were of the required quality.Conclusions The radiation dose of percutaneous coronary angiography is affected by the patient's body size,image acquisition parameters,exposure time and many other factors.Optimizing the image acquisition parameters can ensure the quality of the image while realizing the low dose of radiation and reducing the radiation hazards to the patient and the operator.
