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

Conference · Thu Oct 01 04:00:00 EDT 1992 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6706149

Turkington, T G; Jaszczak, R J; Greer, K L; Coleman, R E ^[1]; Pelizzari, C A ^[2]

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1. Duke Univ., Durham, NC (United States). Dept. of Radiology
2. Dept. of Radiation Oncology, Univ. of Chicago, IL (United States)

In this paper, the accuracy of a surface fitting technique is investigated for registration of 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 marker 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 (1.8 mm) in any direction and the errors in the angle parameters were all less than 3 degrees, with most less than 1.5 degrees.

• OSTI ID: 6706149
• Report Number(s): CONF-911106--
• Conference Information: Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 39:5
• Country of Publication: United States
• Language: English

Related Subjects

440100 -- Radiation Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
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62 RADIOLOGY AND NUCLEAR MEDICINE
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BODY
BRAIN
CALCULATION METHODS
CENTRAL NERVOUS SYSTEM
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
EMISSION COMPUTED TOMOGRAPHY
IMAGE PROCESSING
MOCKUP
NERVOUS SYSTEM
ORGANS
PHANTOMS
PROCESSING
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
STRUCTURAL MODELS
THREE-DIMENSIONAL CALCULATIONS
TOMOGRAPHY