PT  - JOURNAL ARTICLE
AU  - Lee, B C
AU  - Kneeland, B
AU  - Knowles, R J
AU  - Cahill, P T
TI  - Quantification of gray/white matter in neonates and adults.
DP  - 1983 May 01
TA  - American Journal of Neuroradiology
PG  - 692--695
VI  - 4
IP  - 3
4099  - http://www.ajnr.org/content/4/3/692.short
4100  - http://www.ajnr.org/content/4/3/692.full
SO  - Am. J. Neuroradiol.1983 May 01; 4
AB  - Quantitation of gray/white matter is important in evaluation of cerebral blood flow, atrophy, and development of the brain. First-order statistical analysis of neonatal computed tomographic (CT) images revealed that there was only a 6 Hounsfield unit (H) difference between gray and white matter compared with the observed 3 H for the standard deviation over the field of a skull water phantom. Scene segmentation methods based on first-order statistics proved unsuccessful in separating gray and white matter. A new regional clustering algorithm based on local textural properties was developed for separation of these structures.