Application value of improved Cuda-based volume rendering algorithm in CT vascular imaging three-dimensional reconstruction
10.3969/j.issn.1002-1671.2024.04.034
- VernacularTitle:基于Cuda的改进体绘制算法在CT血管图像三维重建的应用价值
- Author:
Liping FANG
1
;
Ying YUAN
;
Xiaofeng TAO
Author Information
1. 上海交通大学医学院附属第九人民医院放射科,上海 200011
- Keywords:
vascular reconstruction;
ray-casting algorithm;
Cuda;
volume rendering
- From:
Journal of Practical Radiology
2024;40(4):659-662
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the application value of an improved volume rendering algorithm based on Cuda in CT vascular imaging three-dimensional reconstruction.Methods Five cases of head and neck vascular computed tomography angiography(CTA)examinations and five cases of coronary CTA examinations were selected.The traditional Bounding-Box algorithm and the Cuda-based volume rendering reconstruction method were used for vascular three-dimensional reconstruction.The reconstruction speed and quality of the two algorithms were compared.Results Running the traditional algorithm on an RTX2060 graphics card took 50-60 ms per frame,while running the algorithm described in this study took 25-35 ms per frame,resulting in approximately a 1x speed improvement.On an RTX3060,the algorithm described in this study took 18-23 ms per frame,resulting in approximately a 1x speed improvement.The reconstruction results from all ten cases demonstrated that the algorithm described in this study provided clearer visualization of small blood vessels in the head and neck region and the distal coronary arteries.Conclusion The Cuda-based development framework achieves faster rendering speed and better image quality compared to the traditional Bounding-Box algorithm.
