By Topic

Monte Carlo evaluation of accuracy and noise properties of two scatter correction methods

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Narita, Y. ; Dept. of Radiol. & Nucl. Med., Res. Inst. for Brain & Blood Vessels, Akita, Japan ; Iida, H. ; Eberl, S. ; Nakamura, T.

Two independent scatter correction techniques, transmission dependent convolution subtraction (TDCS) and the triple-energy window (TEW) method, were evaluated in terms of quantitative accuracy and noise properties using Monte Carlo simulation (EGS4). Emission projections (primary, scatter and scatter plus primary) were simulated for 99m Te and 201Tl for numerical chest phantoms. Data were reconstructed with an ordered-subset ML-EM algorithm including attenuation correction using the transmission data. In the chest phantom simulation, TDCS provided better S/N than TEW, and better accuracy, i.e., 1.0% vs. -7.2% in myocardium, and -3.7% vs. -30.1% in the ventricular chamber for 99mTc with TDCS and TEW, respectively. For 201Tl, TDCS provided good visual and quantitative agreement with a simulated true primary image without noticeably increasing the noise after scatter correction. Overall the TDCS proved to be more accurate and less noisy than TEW, facilitating quantitative assessment of physiological functions with SPECT

Published in:

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE  (Volume:2 )

Date of Conference:

2-9 Nov 1996