Clinical application of CT fusion navigation technology in endovascular isolation surgery for Stanford B-type aortic dissection
10.3969/j.issn.1002-1671.2025.05.029
- VernacularTitle:CT融合导航技术在Stanford B型主动脉夹层腔内隔绝术中的临床应用
- Author:
Yujia LIN
1
;
Nan CAI
;
Guodong ZHANG
;
Zhengxian LIAO
;
Wen ZHANG
;
Xinghua WU
Author Information
1. 梅州市人民医院介入手术中心,广东 梅州 514031
- Publication Type:Journal Article
- Keywords:
CT fusion navigation;
Stanford B-type aortic dissection;
endovascular isolation surgery
- From:
Journal of Practical Radiology
2025;41(5):849-852,881
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the application value of CT fusion navigation technology in Stanford B-type aortic dissection endovas-cular isolation surgery.Methods Nineteen patients who underwent Stanford B-type aortic dissection endovascular isolation surgery were selected.Prior to surgery,all patients underwent chest and abdominal CT plain scan and enhanced scan,and three-dimensional vascular reconstruction was performed at the post-processing workstation;During the operation,a chest(region of interest)digital subtraction angiography(DS A)3D-CT scan was first performed as the intraoperative matching localization image.Then,a thin-layer(1.0 mm)CT enhanced tomographic image of the chest and abdomen was extracted from the picture archiving and communication system(PACS).At the same time,the DSA 3D-CT image and the thin-layer CT enhanced image were opened for overlapping regis-tration of bony landmarks.After registration,the three-dimensional vascular volume rendering(VR)image of the aorta from the thin-layer CT was fused with the DSA 3D-CT,and the positioning and release of the covered stent were guided by the newly fused multimodal real-time image.Results All 19 patients underwent guided surgery with precise positioning of the covered lesions and successful release of the covered stents,with a success rate of 100％ for the guided technique.The intraoperative placement time of the covered stent was(5.4±2.4)s,the exposure time was(12.8±3.2)min,the surgical duration was(53.9±25.3)min,the intraopera-tive contrast agent dosage was(125.8±25.3)mL,the X-ray fluoroscopy dose was(221.3±155.7)mGy,and the total X-ray exposure dose was(1 056.4±330.3)mGy.There were no serious complications during the operation,and all patients received 1-3 months of follow-up which found they all recovered well.Conclusion The use of CT and DSA fusion navigation technology in guiding the treat-ment of Stanford B-type aortic dissection with covered stents provides real-time three-dimensional fusion images for the operator,which can quickly and accurately locate and release the stent,and has certain clinical value.
