Distance-dependent restoration filtering of dual photopeak window scatter compensated SPECT images

Conference · Thu Dec 01 04:00:00 EST 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6700270

Glick, S J; Vries, D.J. de; Luo, D S; King, M A ^[1]

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1. Univ. of Massachusetts Medical Center, Worcester, MA (United States)

A non-iterative SPECT reconstruction method is presented which consists of pre-processing the projection data for compensation of scatter, attenuation and the detector response prior to ramp filtered backprojections. Scatter is compensated for using the dual-photopeak window (DPW) method, attenuation is compensated for using Bellini's method, and compensation for the non-stationary detector response and noise suppression is performed with a frequency distance principle (FDP) Wiener filter. This approach was compared to a number of different processing methods using a Monte Carlo simulation study of an anthropomorphic digitized phantom of the liver and spleen. The DPW/FDP Wiener filtering method was shown to provide accurate quantitation of the liver as well as an increase in the ratio of tumor contrast to background noise as compared to Butterworth smoothing.

• OSTI ID: 6700270
• Report Number(s): CONF-931051--
• Conference Information: Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 41:6Pt2
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ACCURACY
BODY
CALCULATION METHODS
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
DIGESTIVE SYSTEM
DISEASES
EFFICIENCY
EMISSION COMPUTED TOMOGRAPHY
FILTERS
GLANDS
IMAGE PROCESSING
LIVER
MONTE CARLO METHOD
NEOPLASMS
ORGANS
PROCESSING
SCATTERING
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
SPLEEN
TOMOGRAPHY