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Evaluation of left ventricular wall motion and function in patients with previous myocardial infarction by three-dimensional 99mTc-HSAD multigated cardiac pool imaging.
Yamazaki, J; Naitou, K; Ishida, S; Uno, N; Saisho, K; Munakata, T; Morishita, T; Takano, M; Yabe, Y.
Afiliación
  • Yamazaki J; First Department of Internal Medicine, Ohmori Hospital, Toho University School of Medicine, Tokyo, Japan.
Ann Nucl Med ; 11(2): 129-38, 1997 May.
Article en En | MEDLINE | ID: mdl-9212893
To evaluate left ventricular (LV) wall motion stereoscopically from all directions and to calculate the LV volume by three-dimensional (3D) imaging. 99mTc-DTPA human serum albumin-multigated cardiac pool-single photon emission computed tomography (99mTc-MUGA-SPECT) was performed. A new data processing program was developed with the Application Visualization System-Medical Viewer (AVS-MV) based on images obtained from 99mTc-MUGA-SPECT. In patients with previous myocardial infarction, LV function and LV wall motion were evaluated by 3D-99mTc-MUGA imaging. The LV end-diastolic volume (LVEDV) and end-systolic volume (LVESV) were obtained from 3D-99mTc-MUGA images by the surface rendering method, and the left ventricular ejection fraction (LVEF) was calculated at thresholds of 35% (T1), 40% (T2), 45% (T3), and 50% (T4). There was a strong correlation between the LV volume calculated by 3D-99mTc-MUGA imaging at a threshold of 40% and that determined by contrast left ventriculography (LVEDV: 194.7 +/- 36.0 ml vs. 198.7 +/- 39.1 ml, r = 0.791, p < 0.001; LVESV: 91.6 +/- 44.5 ml vs. 93.3 +/- 41.3 ml, r = 0.953, p < 0.001), respectively. When compared with the LVEF data obtained by left ventriculography, significant correlations were found for 3D images reconstructed at each threshold (T1: r = 0.966; T2: r = 0.962; T3: r = 0.958; and T4: r = 0.955). In addition, when LV wall motion obtained by 3D-99mTc-MUGA imaging (LAT and LAO views) was compared with the results obtained by left ventriculography (RAO and LAO views), there was good agreement. 3D-99mTc-MUGA imaging was superior in allowing evaluation of LV wall motion in all directions and in assessment of LV function, since data acquisition and image reconstruction could be done within a short time with the three-detector imaging system and AVS-MV. This method appears to be very useful for the observation of both LV wall motion and LV function in patients with ischemic heart disease, because it is a noninvasive examination.
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Imagen de Acumulación Sanguínea de Compuerta / Agregado de Albúmina Marcado con Tecnecio Tc 99m / Pentetato de Tecnecio Tc 99m / Función Ventricular Izquierda / Infarto del Miocardio Tipo de estudio: Diagnostic_studies / Evaluation_studies Límite: Adult / Aged / Humans / Male / Middle aged Idioma: En Revista: Ann Nucl Med Asunto de la revista: MEDICINA NUCLEAR Año: 1997 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Japón
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Imagen de Acumulación Sanguínea de Compuerta / Agregado de Albúmina Marcado con Tecnecio Tc 99m / Pentetato de Tecnecio Tc 99m / Función Ventricular Izquierda / Infarto del Miocardio Tipo de estudio: Diagnostic_studies / Evaluation_studies Límite: Adult / Aged / Humans / Male / Middle aged Idioma: En Revista: Ann Nucl Med Asunto de la revista: MEDICINA NUCLEAR Año: 1997 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Japón