A New Transfer Function for Volume Visualization of Aortic Stent and Its Application to Virtual Endoscopy

• DOI: 10.1145/3373358
• Publication Date: 2020-06-22T02:49:20Z
• Authors: Chenxi Huang; Yisha Lan; Guokai Zhang; Gaowei Xu; Landu Jiang; Nianyin Zeng; Jenhong Tan; E. Y. K. Ng; Yongqiang Cheng; Ningzhi Han; Rongrong Ji; Yonghong Peng
• Keywords: 0206 medical engineering; 02 engineering and technology

Aortic stent has been widely used in restoring vascular stenosis and assisting patients with cardiovascular disease. The effective visualization of aortic is considered to be critical ensure the effectiveness functions clinical practice. Volume rendering ray casting as an approach enable stent. volume relies on transfer function that converts medical images into optical attributes including color transparency. This article proposes a new function, namely, multi-dimensional provide additional transparency value voxel. proposed using effectively assists distinguishing tissues have same CT value. values are simultaneously determined by gray threshold change threshold, which can recognize unnecessary structures such bones transparent. A series experimental results demonstrate situation aorta patient directly observed, angle view switched arbitrarily. method provides way for operation virtual endoscopy reach place blood vessels traditional fails reach.