Title: Gated myocardial perfusion SPECT underestimates left ventricular volumes and shows high variability compared to cardiac magnetic resonance imaging-a comparison of four different commercial automated software packages Authors:

We present the case of a 65-year-old man with dyspnea and chest discomfort referred for dipyridamole myocardial perfusion scintigraphy. 99mTc-sestamibi cardiac gated SPECT images showed an irreversible hypoperfusion in the mid-ventricular portion of anteroseptal wall, a suspicious reversible hypoperfusion in the apical slices of inferolateral wall, and left ventricle dilatation with a ejection ...

Background: Behçet's disease (BD) is a multi-system vasculitis that can have a wide range of effects on the cardiovascular system. Objective: To determine the existence of myocardial perfusion defects caused by coronary microvascular dysfunction in asymptomatic BD patients with and with out metabolic syndrome and to evaluate coronary arterial distribution and left ventricular systolic function ...

Introduction: We aimed to investigate the effect of right bundle branch block (RBBB) on perfusion and functional parameters in dipyridamole stress/rest Tc99m-MIBI gated myocardial perfusion SPECT (GSPECT) which may be helpful in interpretation of myocardial perfusion imaging. Methods: We studied 73 patients with low pre-test likelihood of coronary artery disease in two groups: 38 patients with ...

There are some specifics in the presentation of coronary artery disease (CAD) in women compared with men that may cause diagnostic pitfalls. The accuracy of noninvasive diagnostic testing in women tends to be lower than that in men. Stress myocardial perfusion imaging with 99m-Tc sestamibi gated SPECT is an accurate technique for detecting CAD. Only a few studies have compared dipyridamole stre...

Introduction: To assess if myocardial ischemia evidenced through both perfusion abnormalities and post-stress left ventricular ejection fraction reduction by gated single photon emission tomography (SPECT) myocardial scintigraphy in women with angina and normal coronary angiograms, as well as the presence of endothelial dysfunction, can predict cardiac events during a medium term follow-up. Met...

INTRODUCTION AND OBJECTIVES The aim of this study was to compare magnetic resonance and gated-SPECT myocardial perfusion imaging in patients with chronic myocardial infarction. METHODS Magnetic resonance imaging and gated-SPECT were performed in 104 patients (mean age, 61 [12] years; 87.5% male) with a previous infarction. Left ventricular volumes and ejection fraction and classic late gadoli...

PURPOSE Myocardial perfusion is routinely measured by SPECT--this technique has a rather low spatial resolution but covers the whole myocardium and is equipped with efficient image analysis software. Cardiac MRI has higher spatial resolution than SPECT and excellent sequences for myocardial function and viability detection but the lack of easy-to-use methods of acquisition and post-processing o...

Received 2/12/2007; revised 3/16/2007; accepted 3/16/2007. For correspondence or reprints contact: Guang-Uei Hung, M.D., Department of Nuclear Medicine, Changhua Christian Hospital. 135 Nan-Shiao Street, Changhua 500, Taiwan. Tel: (886)4-7238595 ext. 3091, E-mail: [email protected] Background: Gated myocardial perfusion SPECT simultaneously evaluates myocardial perfusion at tracer injection and...

As a 2-year project of the Japanese Society of Nuclear Medicine working group activity, normal myocardial imaging databases were accumulated and summarized. Stress-rest with gated and non-gated image sets were accumulated for myocardial perfusion imaging and could be used for perfusion defect scoring and normal left ventricular (LV) function analysis. For single-photon emission computed tomogra...