Title :
Decrease of the influence of noise on precise CT-densitometry
Author_Institution :
Dept. of Roentgenol., Med. Acad.-Plovdiv
Abstract :
Summary form only given. The authors present the results of an experiment designed to reduce the noise in computed tomography density images. Noise was examined from a statistical point of view, and the minimal area required for reliable density measurement was determined. It was established that density measurement of slices 5- and 10-mm thick is reliable and repeatable with an error less than ±5 HU in an area greater than 40 mm2, independently of scanning parameters
Keywords :
computerised tomography; densitometry; noise; 10 mm; 5 mm; computed tomography density images; noise; precise CT-densitometry; scanning parameters; Biosensors; Carbon dioxide; Endoscopes; Gas detectors; Medical services; Medical treatment; Optical fiber devices; Optical fiber sensors; Sensor arrays; Temperature sensors;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95831
