Study on the application of 4D DICOM perspective virtual reality technique in the treatment of severe stenosis of carotid artery stenosis at the beginning of internal carotid artery

Abstract

Objective To study the clinical value of 4D digital imaging and communication in medicine (DICOM) perspective virtual technology in stent placement for severe stenosis of internal carotid artery. Methods The clinical data of 40 cases of severe stenosis of the initial internal carotid artery in the Department of Neurosurgery, Zhongshan Hospital Affiliated to Dalian University from October 2016 to October 2017 were analyzed retrospectively. By collecting the original data of the CTA, MRA and other DICOM images of the patients who with the stenosis in the internal carotid artery, the CTA, MRA and other DICOM images were uploaded. The virtual reality images were synthesized by 4D DICOM perspective, and the path of operation was guided. The size of the intravascular diameter was measured by 4D endoscopic surgery, and the size of the plaque and its spatial structure in the vascular endovascular were observed. Through the comparison of operative time and operative failure rate, we analyzed the difference of virtual technology guided by 4D DICOM before and after interventional therapy. Results The operation process of the patients with 4D vascular endoscopy assisted stent implantation in the virtual technology of 4D DICOM perspective technoly was successful, and all the stents were successfully implanted, and no adverse vascular events occurred during the operation. 1 years after operation, CTA and vascular endoscopy were used to evaluate the prognosis. The position of the stent was accurate, and the blood vessel wall was well fitted with no thrombosis. Conclusion The application of 4D DICOM perspective virtual technology can integrate multiple imaging data quickly, intuitively and comprehensively, provide vascular anatomy and intraluminal conditions, which can help the stent implantation in the vascular stenosis, reduce the operation time and postoperative vascular complications. It is helpful for the formulation and optimization of surgical procedures before operation, and improves the safety and success rate of operation. Key words: 4D digital imaging and communications in medicine; Perspective virtual technology; 4D vascular endoscopy; Internal carotid artery