Lung density patterns in a group of randomly selected, normal individuals were determined
by computed tomography, using two methods: one measuring the density of the peripheral …

Digital subtraction radiography is a sensitive method for imaging changes in pulmonary
aeration during the respiratory cycle. The findings of 75 consecutive dynamic pulmonary …

Twenty patients suffering from bronchial asthma have been studied by regional pulmonary X-
ray densitometry. Fourteen of the patients were examined by fluorodensitometer and six by …

A gamma ray densitometer for the investigation of pulmonary function Page 1 Physics in
Medicine & Biology A gamma ray densitometer for the investigation of pulmonary function To …

The vascular component of the pulmonary densitometry signal has been the source of much
controversy and attempts to elucidate its true significance have been thwarted by an inability …

An ECG-triggered multisweep method for the collection of low-energy gamma ray absorption
data in normal and cancerous tissue has been developed, resulting in digital perfusion …

ABSTRACT A computer-based system for electron beam treatment planning in
radiationtherapy is greatly needed. This thesis is concerned with the development ofsuch a …