Title :
CT lung image classification with correction for perfusion gradient
Author :
Chabat, F. ; Hansell, D.M. ; Yang, G.Z.
Author_Institution :
R. Brompton Hosp., London, UK
Abstract :
On computed tomography (CT) images of the lungs, areas affected by some small airways diseases appear as dark patches. The detection of these areas can be difficult due to the subtlety of the intensity difference between normal and diseased lung parenchyma. This paper presents an automated method for the reproducible quantification of the affected lung parenchyma in the presence of intensity distortion caused by gravity dependent perfusion gradient. The technique was validated with both phantom studies and a clinical trial of 15 patients
Keywords :
computerised tomography; CT lung image classification; airways diseases; automated method; clinical trial; computed tomography; diseased lung parenchyma; gravity dependent perfusion gradient; intensity distortion; patients; phantom studies;
Conference_Titel :
Image Processing And Its Applications, 1999. Seventh International Conference on (Conf. Publ. No. 465)
Conference_Location :
Manchester
Print_ISBN :
0-85296-717-9
DOI :
10.1049/cp:19990352