Application of the second generation snap shot freeze combined with artificial intelligence in free heart rate coronary CT angiography
10.3969/j.issn.1002-1671.2024.02.032
- VernacularTitle:第2代冠状动脉冻结技术结合人工智能在自由心率冠状动脉CT血管成像的应用
- Author:
Lei ZHENG
1
;
Wujuan QI
;
Hongyan WU
;
Nan ZHU
;
Shuangyan JIANG
;
Zhizhong YUAN
Author Information
1. 蚌埠市中医医院影像科,安徽 蚌埠 233000
- Keywords:
snap shot freeze;
coronary computed tomography angiography;
free heart rate;
image quality
- From:
Journal of Practical Radiology
2024;40(2):311-314
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the application value of the second generation snap shot freeze(SSF2)combined with artificial intelligence reconstruction in free heart rate coronary computed tomography angiography(CCTA).Methods The examination data of 37 patients undergoing CCTA were divided into two groups for reconstruction.Group A,reconstruction by artificial intelligence after SSF2 algorithm correction;group B,original images automatically split and multi-phase reconstruction by artificial intelligence.Image quality were compared on volume rendering(VR),curve planar reformation(CPR),maximum intensity projection(MIP)image,subjective evaluation,objective scoring,and signal-to-noise ratio(SNR).Independent samples t-test and Chi-square test were used,and P<0.05 was considered statistically significant.Results There were statistically significant differences in the image quality score and SNR of the two reconstruction methods(P=0.009).Group A scored better,with higher signal intensity,lower noise intensity,and better SNR.The difference in the number of right coronary artery(RCA)analyzable segments between the two groups was statistically significant(P<0.05).The excellent and good rate of subjective evaluation of coronary artery segments in group A RCA(98.6%)was higher than that in group B(69.6%).Conclusion Using SSF2 combined with artificial intelligence reconstruction technology can significantly improve the image quality of CCTA,improve the success rate of CCTA examination,and improve the overall work efficiency.
