Research about the gray-level correction in DSA.
- Author:
Ping WANG
1
;
Xuan-qin MOU
;
Hou-jun YU
Author Information
1. Xi'an Jiaotong University.
- Publication Type:Journal Article
- MeSH:
Algorithms;
Aluminum;
Angiography, Digital Subtraction;
methods;
Humans;
Image Processing, Computer-Assisted;
methods;
Plastics;
Radiographic Image Enhancement;
methods;
Reproducibility of Results;
Sensitivity and Specificity
- From:Chinese Journal of Medical Instrumentation
2002;26(1):17-19
- CountryChina
- Language:Chinese
-
Abstract:
How to eliminate the background of other tissue and to protrude the blood vessel information is the basic requirements in DSA. Because of the complexity and non-linearity of the X-ray imaging process, the common DSA technique cannot completely remove other tissue's image which lapped over the vessels. By experiments, this paper analyses and corrects the imaging process of the actual DSA system based on the "equivalent single energy" model, and the results indicate the validity of this method.
