Aligning emission tomography and MRI images by optimizing the emission-tomography image reconstruction objective function
Publication
, Journal Article
Bowsher, JE; Delong, DM; Turkington, TG; Jaszczak, RJ
Published in: IEEE Nuclear Science Symposium Conference Record
December 1, 2003
An important approach to reconstruction of PET and SPECT images is to utilize high-resolution information from registered MRI or CT images. Herein, a PET/SPECT image-reconstruction objective function is presented which includes parameters for the alignment between PET/SPECT and MRI/CT. A Levenberg-Marquardt estimation procedure is developed. An anecdotal evaluation is performed with computer-simulated PET/SPECT projection data for a brain phantom. The simulation models a spatial blur of 2 mm FWHM and utilizes 1-mm-wide PET/SPECT voxels. After two iterations, translational alignment errors are well under 0.1 mm and rotational errors are fractions of a degree.
Duke Scholars
Published In
IEEE Nuclear Science Symposium Conference Record
ISSN
1095-7863
Publication Date
December 1, 2003
Volume
4
Start / End Page
2562 / 2565
Citation
APA
Chicago
ICMJE
MLA
NLM
Bowsher, J. E., Delong, D. M., Turkington, T. G., & Jaszczak, R. J. (2003). Aligning emission tomography and MRI images by optimizing the emission-tomography image reconstruction objective function. IEEE Nuclear Science Symposium Conference Record, 4, 2562–2565.
Bowsher, J. E., D. M. Delong, T. G. Turkington, and R. J. Jaszczak. “Aligning emission tomography and MRI images by optimizing the emission-tomography image reconstruction objective function.” IEEE Nuclear Science Symposium Conference Record 4 (December 1, 2003): 2562–65.
Bowsher JE, Delong DM, Turkington TG, Jaszczak RJ. Aligning emission tomography and MRI images by optimizing the emission-tomography image reconstruction objective function. IEEE Nuclear Science Symposium Conference Record. 2003 Dec 1;4:2562–5.
Bowsher, J. E., et al. “Aligning emission tomography and MRI images by optimizing the emission-tomography image reconstruction objective function.” IEEE Nuclear Science Symposium Conference Record, vol. 4, Dec. 2003, pp. 2562–65.
Bowsher JE, Delong DM, Turkington TG, Jaszczak RJ. Aligning emission tomography and MRI images by optimizing the emission-tomography image reconstruction objective function. IEEE Nuclear Science Symposium Conference Record. 2003 Dec 1;4:2562–2565.
Published In
IEEE Nuclear Science Symposium Conference Record
ISSN
1095-7863
Publication Date
December 1, 2003
Volume
4
Start / End Page
2562 / 2565