Correlation of SPECT images of a three-dimensional brain phantom using a surface fitting technique

Author

Turkington, T.G. ; Jaszczak, R.J. ; Greer, K.L. ; Coleman, R.E. ; Pelizzari, C.A.

Author_Institution

Dept. of Radiol., Duke Univ. Med. Center, Durham, NC, USA

Volume

39

Issue

5

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1460

Lastpage

1463

Abstract

The accuracy of a surface fitting technique was investigated for registration of single photon emission tomography (SPECT) brain images. Fiduciary markers were placed on the outside of a three-dimensional brain phantom filled with Tc-99m solution. The phantom and markers were scanned at several orientations in the scanner and contours were produced for the slices of each set. Parameters were fit to rotate and translate images acquired at each orientation to match the images acquired at each of the other orientations. Independent fits based on the measured market positions were done to determine the rotational and translational parameters more precisely. The maximum error measured in the translational parameters was less than 1/2 pixel in any direction and the errors in the angle parameters were all less than 3°, with most less than 1.5°

Keywords

brain; computerised tomography; radioisotope scanning and imaging; SPECT images; brain phantom; diagnostic nuclear medicine; single photon emission tomography; surface fitting technique; Anatomy; Biomedical imaging; Brain; Imaging phantoms; Oncology; Pixel; Position measurement; Radiology; Rotation measurement; Surface fitting;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.173224

Filename

173224