Abstract:
A headholder system is described for use in the correlation of
images obtained with positron computed tomography (PCT) and other
neuroradiological imaging modalities. Methods are described for defining
brain anatomy from PCT images by the use of projection schemes from
tomographic data. Cross-correlation of images between positron CT and
standard lateral skull films, X-ray computed tomography (XCT), and
two-dimensional rectilinear positron images are discussed. Such methods
allow for improved reproducibility of head positioning and more precise
cortical localization necessary in studies of normal brain function as
well as in neuropathological conditions