Objective: The purpose of this study was to determine if cutoff frequencies of two-
dimensional Butterworth filters need to be changed, depending upon the amount of …

[en] We assessed the cut-off frequency (Fc) of the Butterworth filter in myocardial nuclear
imaging. The RH-2 was used as a myocardial phantom. The parameters are nuclides (201 …

Myocardial perfusion single photon emission computed tomography (SPECT) is typically
subject to a variation in image quality due to the use of different acquisition protocols, image …

Background The optimal projection data acquisition strategy for myocardial perfusion (MP)
single photon emission computed tomography (SPECT) remains controversial. Methods We …

This study was carried out to measure the differences produced by change of reconstruction
filter in calculations of left-ventricular end-diastolic volumes, end-systolic volumes, stroke …

Background: In myocardial perfusion SPECT imaging, images are degraded by photon
attenuation, the distance-dependent collimator, detector response and photons scatter …

Nuclear cardiac imaging is a noninvasive, sensitive method providing information on cardiac
structure and physiology. Single photon emission tomography (SPECT) evaluates …

In single photon emission computed tomography (SPECT) images, we evaluated cut-off
frequency using two methods: spatial domain method (normalized mean square error …

Siemens has developed a new IQ-SPECT™ product to improve the efficiency of myocardial
perfusion imaging (MPI) using conventional large-field-of-view SPECT and SPECT/CT …

Myocardial perfusion SPECT imaging with Tc99m-sestamibi is the most accurate non-
invasive means of detecting coronary artery disease and assessing the severity of perfusion …