Division ofNuclear Medicine, Department oflnternal Medicine, UniversityofMichigan, Ann
Arbor, Michigan to the registration of two similar but nonidentical images from the same …

Movementduringor between PET examinationsIs a common and serious problem.
Consequently, there is a great need for rapid, accurate and robust methods to realign image …

A computer algorithm for the three-dimensional (3D) alignment of PET images is described.
To align two images, the algorithm calculates the ratio of one image to the other on a voxel …

MR brain images, in the first experiment we have chosen the acquisition parametersthat
simulate PET/MR coregis tration. The source scan, approximating a routine MR brain scan …

Objective: A variety of methods for matching intrasubject MRI-MRI, PET-PET, or MRI-PET
image pairs have been proposed. Based on the rigid body transformations needed to align …

Methods The PET atlas was constructed from a high-resolution [18F] fluorodeoxyglucose
(FDG) image set of a normal volunteer (a 41-yr-old woman). The image set was reoriented …

Axial and sagittal magnetic resonance (MR) sections and contiguous sections of axial
positron emission tomographic (PET) images obtained with fludeoxyglucose F-18 were used …

Purpose: Stereotactic coordinate spaces and methods to adapt subjects to that space are
required when performing averaging of functional studies across subjects. Methods: A rapid …

It is desirableto separatethe effectsoffinite samplingfrom those due to experimental errors,
which are more difficult to control. Two shapes were used to assess the errors resulting from …

A surface matching technique has been developed to register multiple imaging scans of the
brain in three dimensions, with accuracy on the order of the image pixel sizes. Anatomic …