Ronald J. Jaszczak

TL;DR: The results have shown that high-quality, camera-based SPECT systems can reconstruct artifact-free images by making additional use of projection data acquired in a pulse-height window other than that over the primary photopeak.

TL;DR: Evaluated small-field-of-view, ultra-high-resolution pinhole collimation for a rotating-camera SPECT system that could be used to image small laboratory animals and in vitro image quality was evaluated using two rats.

TL;DR: A Bayesian method is presented for simultaneously segmenting and reconstructing emission computed tomography (ECT) images and for incorporating high-resolution, anatomical information into those reconstructions, which is effective because anatomical tissue type often strongly influences radiopharmaceutical uptake.

TL;DR: In this article, the root mean square (rms) noise level in attenuation corrected images of a uniform cylindrical source was measured and found to agree with theoretically predicted vaiues obtained with the following equation: %rms = 100 (1.8)3/2? Reff Rs 1/2 Abody Cavg / 21/2Ntotal1/2(FF)1/ 2 where Reff is the effective radius of the source, RS is the actual source radius, Abody is the attenuation factor for surrounding non-source body material, Cav

TL;DR: The extent of alteration in whole-lung function (symptoms or PFT changes) appears to be related to both dose-volume and pre-RT PFT parameters, which suggests that no one variable is likely to be an adequate predictor and that multivariate predictive models will be needed.