discussion the reason is that we assess the relative and not absolute differences of the tracer uptake in this imaging modality. there may be other findings on mpi images which could help us overcome this pitfall, including detecting wall motion abnormalities, lung uptake of the tracer, or transient ischemic dilation. another important issue is the ecg changes during exercise stress testing, wh...

background & aim : primary dysmenorrhea (pd) is the most common genital disease among adults which can disrupt daily activities and reduce quality of life. acupressure was recommended for relief of pd and the aim of this study was to compare the maximum pain intensity (mpi) and duration of pd after acupressure on third liver (liv3) and placebo points. methods & materials : students who were suf...

The most widely used technique to allow for parallel simulations in molecular dynamics is spatial domain decomposition, where the physical geometry divided into boxes, one per processor. This can inherently produce computational load imbalance when either distribution of particles or cost particle not uniform. paper shows benefits using a hybrid MPI+OpenMP model deal with this imbalance. We con...

doppler-derived myocardial performance index (mpi), defined as the sum of isovolumetric contraction and relaxation durations divided by ejection time, is an easily measured and reproducible index that shows both systolic and diastolic myocardial function. the goal of this study was to define normal values of right ventricular (rv) mpi in neonates in the first 48 to 72 hours of life. fifty-one q...

introduction: the main purpose of this study was to compare transient ischemic dilation (tid) ratios in spect-low dose ct and spect myocardial perfusion imaging (mpi) by application of different quantitative programs and quantify the possible shift in the upper normal limits of tid ratio in the spect-ct mpi. methods: 149 patients with low pre-test probability for coronary artery disease (cad),...

Introduction: Peripheral Vascular Disease (PVD) is a major cause of morbidity and is associated with Coronary Artery Disease (CAD). We aimed to perform Lower Limb Perfusion Scan (LLPS) in patients referred for Myocardial Perfusion Imaging (MPI) and estimate prevalence of PVD in subgroups with normal and abnormal MPI results. We also compared quantitative indices of LLPS in pati...

Objective: Although coronary artery disease (CAD) is the leading cause of death in type 2 diabetic patients, it is frequently asymptomatic. Myocardial perfusion imaging (MPI) is reported to show ischemia in a significant number of asymptomatic diabetic patients. We studied the prevalence and severity of myocardial perfusion defects in asymptomatic diabetic patients and its clinical impact. Meth...

parallel computing is a topic of interest for a broad scientific community since it facilitates many time-consuming algorithms in different application domains.in this paper, we introduce a novel platform for parallel computing by using mpi and openmp programming languages based on set of networked pcs. umzhpc is a free linux-based parallel computing infrastructure that has been developed to cr...

introduction: this study evaluated the diagnostic value of the dipyridamole induced electrocardiuogram (ecg) cahnges, comparing with myocardial perfusion imaging. materials and methods: 222 patinets were studied with dipyridamole infusion (based on ecg criteria) as well as dipyridamole-myocardial perfusion imaging (mpi). results: abnormal dipyridamole test and abnormal mpi were noted in 11% and...