Left ventricular functional parameters by gated SPECT myocardial perfusion imaging in a Latin American country.
There is paucity of data on left ventricular (LV) functional parameters using gated SPECT myocardial perfusion imaging (MPI) from the Latin American region. This study provides detailed information in low-risk patients both at rest and during exercise.



We studied 90 patients (50 men) with a very low likelihood of coronary artery disease. Gated-SPECT MPI was performed with Tc-99m MIBI using a 2-day protocol, with 16 frames/R-R cycle. The LV ejection fraction and volumes were not different between the rest and post-stress images. LVEF was 68 ± 7% post-stress and 70 ± 7% at rest in women, and 62 ± 7% and 63 ± 7%, respectively, in men (P = .19, .26). LV volumes were larger in men than women (P < .01). There were no differences in most variables obtained at rest or post-stress. Transient ischemic dilatation was similar, with upper limits of 1.20 and 1.19 in women and men, respectively (P = NS).



These data could prove helpful for the interpretation of gated SPECT MPI data in Latin America using identical protocol as used in this study.
Nuclear Medicine Service, Italian Hospital, Montevideo, Uruguay.|Nuclear Medicine Service, Spanish Association Hospital, M Cassinoni 1443, 1200, Montevideo, Uruguay.
Miguel
M
Kapitan
Nuclear Medicine Service, Italian Hospital, Montevideo, Uruguay.
Alvaro
A
Beltran
Nuclear Medicine Service, Spanish Association Hospital, M Cassinoni 1443, 1200, Montevideo, Uruguay.
Mario
M
Beretta
Nuclear Medicine Service, Italian Hospital, Montevideo, Uruguay. mut.fer@gmail.com.|Nuclear Medicine Service, Spanish Association Hospital, M Cassinoni 1443, 1200, Montevideo, Uruguay. mut.fer@gmail.com.
Fernando
F
Mut
D000328:Adult; D000465:Algorithms; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D015637:Gated Blood-Pool Imaging; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D055414:Myocardial Perfusion Imaging; D012189:Retrospective Studies; D017256:Technetium Tc 99m Sestamibi; D015899:Tomography, Emission-Computed, Single-Photon; D014583:Uruguay / Q000453:epidemiology; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging*; D016277:Ventricular Function, Left
D017256:Technetium Tc 99m Sestamibi
Gated-SPECT; Latin America; functional parameters