Unlabelled: The utility of (99m)Tc-tetrofosmin myocardial SPECT for assessment of pulmonary hypertension and right ventricular thickness has not been well studied. We hypothesized that a ratio of right ventricular activity to left ventricular activity (RV/LV uptake ratio) from SPECT myocardial perfusion images could identify the presence of increased right ventricular wall thickness and elevated systolic pulmonary artery pressure with or without the use of attenuation correction.
Methods: We identified 33 patients with normal findings on stress (99m)Tc-tetrofosmin left ventricular myocardial perfusion imaging who had a complete 2-dimensional echocardiographic study within 3 wk of the SPECT study.
Study Objectives: To assess the characteristics of children with type 2 diabetes mellitus and to determine the efficacy and safety of drug therapies for this disease in this population.
Design: Retrospective review of medical records.
Setting: Endocrinology specialty clinic at a tertiary teaching children's hospital.