Left ventricular ejection fraction and volumes on rest gated 201Tl perfusion SPECT: Comparison with two-dimensional echocardiography

Abstract

These results suggest that the 4 h rest gated 201Tl study gives a reliable value for the LVEF compared to 2-D ECHO and can be used in routine clinical practice.

Evaluation of post-stress left ventricular dysfunction and its relationship with perfusion abnormalities using gated SPECT in patients with cardiac syndrome X

“…G-SPECT offers the potential advantage of combining information on myocardial function and perfusion [19][20][21][22][23][24]. In healthy subjects, the LV function measured 30 min after stress will be similar to LV function at rest.…”

“…Recently, gated SPECT with either 201 Tl or 99m Tclabelled tracers have been proposed for the determination of LV ejection fraction (LVEF), volumes, wall motion (WM) and thickness (WT). Gated SPECT (G-SPECT) offers the potential advantage of combining information about myocardial function and perfusion without any extra cost, any discomfort and radiation risk to the patient [19][20][21][22][23][24]. In addition to the several previous studies, prolonged left ventricular dysfunction (WM abnormalities, LVEF and volume impairments) in post-stress G-SPECT images had been well correlated with myocardial perfusion abnormalities and degree of stenotic vessels in CAG in patients with coronary artery disease [25][26][27][28][29][30][31][32][33][34][35][36].…”

Left Ventricular Diastolic Dysfunction as Assessed by Echocardiography in Metabolic Syndrome

“…Relative wall thickness, which increases with concentric remodeling and concentric hypertrophy, was calculated as 2 × PW/LVDd. The left ventricular ejection fraction (LVEF) was estimated by the modified Simpson method (14) and was used as the parameter of LV systolic function.…”

Gated-SPECT – Integrierte kardiale Funktionsdiagnostik

“…In den letzten Jahren wurden mehrere unterschiedliche Algorithmen f ü r die Segmentierung des linken Ventrikels entwickelt, einige sind kommerziell verf ü gbar [7,8,11,13] . Die Bestimmung der linksventrikul ä ren Funktionsparameter durch gSPECT korreliert hervorragend mit denen anderer etablierter Referenz-Bildgebungsmodalit ä ten wie Echokardiografi e [4,5,23] und Magnetresonanztomografi e [16,25] . Die Reproduzierbarkeit ist hoch.…”