Digital Image Processing Algorithm for Functional Analysis of Renal Perfusion.

Document Type : Research Studies

Authors

1 Professor of Computers & Control Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

2 Professor of Urology & Mephrology Center., Faculty of Medicine., El-Mansoura University., El-Mansoura., Egypt.

3 Associate Professor., Computers and control Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

4 Urology & Mephrology Center., Faculty of Medicine., El-Mansoura University., Mansoura., Egypt.

Abstract

A timed series of video images (dynamic study) may be taken for a human organ under examination, after f.v. injection of contrast material. The images are digitized and stored as matrices of 512 x 512 pixels, Numerical data for each pixel within the sequence reflects then the temporal changes of the dye concentration in the tissue represented by that pixel according to a well-known X-ray attenuation logarithmic relation. A structured algorithm is developed to perform mathematical analysis and manipulation for those "functional images" on a pixel-by-pixel basis with the aim of deriving out some useful time-density variables and curves. The algorithm is app lied to 38 nor mal individuals to study their renal function and the results proved to be of a remarkable diagnostic value. 
 
 

Main Subjects

MEJ- Mansoura Engineering Journal
Volume 17, Issue 1
VOL 17 has two issues issue 1 consist of two parts from (March to June)
March 1992
Pages 71-91

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