OBJECTIVE The aim of the current study was to compare 180° and 360° data collection modes to measure end diastolic volume (EDV), end systolic volume (ESV) and ejection fraction (EF) values of the cardiac system by gated myocardial perfusion tomography. METHODS Thirty-three patients underwent gated myocardial perfusion tomography. Single photon emission computed tomography data of patients' he...

OBJECTIVES This study sought to describe a protocol for myocardial perfusion imaging using dipyridamole stress, with 128-slice dual-source computed tomography (CT), and to assess the ability of CT myocardial perfusion imaging (MPI) to detect abnormal flow reserve and infarction in comparison with nuclear MPI (NMPI). BACKGROUND CT MPI has not been previously described with the 128-slice dual-s...

effect of perfusion with low temperature locke solution on the isolated hearts of adult rabbits and mongrel puppies was studied. the study showed no arrhythmias or myocardial fibrillation at low temperatures in the isolated mammalian heart.

Bachground: The aim of this study was to determine of diagnostic value of albumin, anti-thrombin Ш, and fibrinogen factors in the diagnosis of pulmonary embolism compared to lung perfusion scan in patients with nephrotic syndrome referred to Hazrat Ali Asghar hospital of Tehran city (Iran) in 2018-2019.  Methods: This study was cross sectional study that was carried out on 30 patients with nep...

Background Assessment of myocardial perfusion plays an important role in the evaluation of coronary artery and ischemic heart disease [1,2]. Scan acceleration methods such as k-t PCA [3] have proven invaluable for increasing coverage and have facilitated 3D perfusion imaging [4]. However, the sensitivity to respiratory motion for high acceleration factors remains challenging [4]. Especially in ...

The aim of this article is to describe a novel hardware perfusion phantom that simulates myocardial first-pass perfusion allowing comparisons between different MR techniques and validation of the results against a true gold standard. MR perfusion images were acquired at different myocardial perfusion rates and variable doses of gadolinium and cardiac output. The system proved to be sensitive to...

BACKGROUND Myocardial perfusion imaging (MPI) provides highly valuable information for risk stratification and determination of optimal clinical management. The goal of the present study was to assess the prognostic value of myocardial perfusion SPECT for the prediction of future cardiac events in Asian population. METHODS Five hundred and ten consecutive patients, who had undergone myocardia...

Introduction: To measure radiation exposures rate in low-risk patients having stress-only and stress-rest myocardial perfusion imaging. Methods: This was a prospective study conducted from January 2012 till November 2012 upon patients with low pre-test probability for coronary artery disease (CAD). A stress MPI (stress-only if MPI is normal and no resting study) followed by a resting MPI study...

The aim of this study was to determine the accuracy of fuzzy rule-based classification that could noninvasively predict CAD based on myocardial perfusion scan test and clinical-epidemiological variables. This was a cross-sectional study in which the characteristics, the results of myocardial perfusion scan (MPS), and coronary artery angiography of 115 patients, 62 (53.9%) males, in Mazandaran H...

BACKGROUND Dyspnea is a complex system with multiple etiologies, including myocardial ischemia ("anginal equivalent"). Few studies have examined the utility of stress testing to detect coronary artery disease in this setting. The purpose of this study was to examine the prevalence, severity, and prognostic value of perfusion defects detected by stress single photon emission computed tomography ...