Clinical value of coronary artery tracking freezing technique in improving the quality of CT coronary images
Qing Tian, Duan Xiao
Published 2020-01-15
Cite as Chin J Prim Med Pharm, 2020,27(02): 146-149. DOI: 10.3760/cma.j.issn.1008-6706.2020.02.005
Abstract
ObjectiveTo explore the clinical value of cardiac coronary artery tracking and freezing(SSF) in improving the quality of CT coronary images.
MethodsA total of 52 patients who underwent coronary angiography(CTA) scan from December 2015 to December 2017 in the Maternal and Child Health Care Hospital of Zhuhai were enrolled.The patients were divided into two groups according to the heart rate of the patients.The heart rate in high heart rate group (24 cases) was>75 beats/min.The heart rate in low heart rate group(28 cases) was ≤75 beats/min.The two groups used the standard algorithm(STD) and SSF technique to reconstruct the image separately.The obtained images were obtained by multiple names.The diagnostician performed the analysis and scored the quality of the coronary image using the LiKert 5-point scoring system.The score of <3 points required CTA examination again to evaluate the value of SSF in improving CT coronary image quality.
ResultsThe STD and SSF image quality scores of the high heart rate group were (2.33±0.87)points and (3.99±0.82)points, respectively, and the difference was statistically significant(t=-7.347, P<0.05). The STD and SSF image quality scores of the low heart rate group were (3.15±1.06)points and (4.23±0.65)points, respectively, and the difference was statistically significant(t=-4.596, P<0.05). The STD and SSF image quality scores between the two groups had statistically significant differences (t=5.723, 7.386, all P<0.05). In the high heart rate group, the image quality scores reconstructed using SSF technique was increased by 71%, which in the low heart rate group was increased by 34%, the difference between the two groups was statistically significant(χ2=9.668, P<0.05).
ConclusionSSF algorithm can improve image quality of CTA, especially in patients with high heart rate.
Key words:
Coronary vessels; Coronary disease; Diagnostic imaging; Tomography, X-ray computed; Cardiac-gated imaging techniques; Image processing, computer-assisted; Tracking freezing technology; Heart rate
Contributor Information
Qing Tian
Department of Radiology, the Maternal and Child Health Care Hospital of Zhuhai, Zhuhai, Guangdong 519000, China
Duan Xiao
Department of Radiology, the Maternal and Child Health Care Hospital of Zhuhai, Zhuhai, Guangdong 519000, China
