Analysis of the Value of 4D-CTA in the Evaluation of ASD and VSD before Interventional Surgery

doi:10.7517/issn.1674-0475.220606

Abstract

Abstract: This study investigated the application value of 320-slice spiral CT cardiac four-dimensional volume dynamic imaging (4D-CTA) in the preoperative examination of atrial septal defect (ASD) and ventricular septal defect (VSD) minimally invasive intervention. 66 patients who underwent ASD and VSD interventional occlusion were selected as the research subjects. All patients received 4D-CTA and two-dimensional echocardiography (2D-TTE) check. The differences of ASD parameters, VSD parameters and left ventricular function parameters measured by 4D-CTA and 2D-TTE were compared, and the correlation between ASD parameters and VSD parameters measured by 4D-CTA and 2D-TTE and the waist diameter of the occluder was analyzed. In 35 patients with ASD, there was no significant difference in ASD maximum diameter, ASD minimum diameter, total atrial septum length, EDV, ESV, and SV values measured by 4D-CTA and 2D-TTE (P>0.05), but EF value was greater than that of 2D-TTE assay (P<0.05). In 31 patients with VSD, there was no significant difference between the maximum diameter of VSD, the minimum diameter of VSD, total length of ventricular septum, EDV, ESV, SV, and EF measured by 4D-CTA and 2D-TTE (P>0.05). The correlation r value of ASD, VSD maximum diameter and occluder waist diameter determined by 4D-CTA was greater than that of 2D-TTE. 4D-CTA can more accurately measure the extent of ASD and VSD defect before operation, and at the same time evaluate the left ventricular function of patients after operation. 4D-CTA preoperative measurement has more advantages in guiding the selection of occluder.

Key words: 320-slice spiral CT, four-dimensional volume dynamic imaging, atrial septal defect, ventricular septal defect, interventional surgery

GAO Haichao, YOU Li, LI Shucheng, KONG Fanqiang, SHEN Jing. Analysis of the Value of 4D-CTA in the Evaluation of ASD and VSD before Interventional Surgery[J]. IMAGING SCIENCE AND PHOTOCHEMISTRY, 2022, 40(6): 1471-1475.

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