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 …

Object The purpose of this study was to examine the results of using Gamma Knife surgery (GKS)
for brain metastases from classically radioresistant malignancies. Methods The authors …

PURPOSE: To determine the dose per fraction that could be used when gamma knife or linear
accelerator–based stereotactic treatments are delivered in 2 or more fractions. METHODS …

Preliminary work has shown that normal lungs have predictable CT patterns and density
ranges. In emphysema, there are irregular zones of extremely low density as well as an overall …

Radionuctide transmission CT generated on a rotating gamma camera can improve SPECT
imaging by providing attenuation maps for attenuation compensation and for anatomical …

This paper develops and tests cone-beam transmission computed tomography (CB-CT) for
attenuation compensation of SPECT images. CB-CT was implemented on a rotating gamma …

Treatment planning for brachytherapy requires the acquisition of geometrical information of
the implant applicator and the patient anatomy. This is typically done using a simulator or a …

A novel method for measuring nonuniform attenuation maps is presented. A cone beam
geometry CT (computed tomography) scan acquired on a standard rotating gamma camera …

Two commercially available water-equivalent solid phantom materials were evaluated for
output calibration in both photon (6–15 MV) and electron (6–20 MeV) beams. The solid water …

Radiation doses were calculated for human neutrophils and platelets labeled by phosphorus-32,
chromium-Si, gallium-67, technetium-99m, indium-Ill, and mercury-197. The cells were …