METHODS Two restoration filters that adapt to the images being processed were investigated,
for use as two-dimensional window functions for preprocessing SPECT images and in …

To improve the quality of digital nuclear medicine images, we have developed a new
implementation of the Wiener restoration filter. The Wiener filter uses as its optimality criterion the …

This study examined the pathophysiology of the myocardial damage produced by direct current
shock over a dose range of 10 to 90 wattseconds, applied directly to the heart in 26 dogs…

METHOD Twenty-two patients suspected of having either arterial or venous clots were studied.
A modification (17) of the method of Thakur et al.(10) was used. The main steps included …

In vivo studies were performed on 28 dogs to evaluate the usefulness of transmission computed
tomography (CT) in the detection and quantitation of experimentally induced myocardial …

MATERIALS AND METhODS The anti-ovarian tumor antibody OC-l25 was developed by
Bast et al. by immunizing BALB/c mice with human epithelial cells obtained originally from a …

METhODS Use of Image PowerSpectrumin Filter Design In the frequency domain, a digital
filter is a sequence of numbers which are multipliedwith the frequencycontent of an image …

The formulation of an" optimal" filter for improving the quality of digitally recorded nuclear
medicine images is reported in this paper. The method forms a Metz filter for each image based …

Discussion The most unusual and unique aspect of Erdheim-Chester disease is its effect on
the long tubular bones. The most common finding is a striking, patchy medullary sclerosis at …

MATERIALS AND METHODS Determination of Modulation Transfer Functions In digital image
restoration, an estimate of the mod ulation transfer function (MTF) is used to characterize …