COMPARISON OF LV FUNCTION ON 4DM-SPECT AND QGS FOR THE ASSESSMENT OF MYOCARDIAL VIABILITY
Abstract
OBJECTIVE: This study designed to compare left ventricular EF, and SV and DV on QGS and 4D-MSPECT for the assessment of myocardial viability.
MATERIALS AND METHODS: This study was done that included 50 patients. Anon convenient sampling method was used and all the patient who visited us during our study period were included in the study. Patients of both genders and all ages were selected. Critically ill, trauma cases and all those patients who had a history of impaired kidney and liver function, cardiac arrhythmia and expected pregnancy were excluded. Data were collected using the Siemens Ecam signature series Gamma Camera interfaced with esoft Syngo p computers. The study was conducted at Punjab Institute of Cardiology Lahore, Nuclear Medcine Department. Data was collected through the specified proforma. After entering the data, it was analyzed descriptively and analytically by using SPSS( statistical package for the social science) version 26.0.
RESULTS: EF calculated with QGS strongly correlated with calculated 4D-MSPECT (y=2.63=0.81x, r2=0.765). These two procedures yielded values were nearly equal. The ES volumes computed by QGS and 4DM-SPECT had a strong association (y=13.28+0.82x,r2=0.798) ED volumes determined by QGS and 4D-MSPECT are also correlated (y=62.35+ 0.56x,r2=0.4389).
CONCLUSION: Both QGS and 4D-MSPECT have their unique strengths in assessing left ventricular function and myocardial viability. The choice between these techniques should be driven by the specific clinical questions, cost consideration, and the availability of resources. Clinicians must weight the advantages of detailed perfusion assessment provided by 4D-MSPECT against the goal of delivering accurate, clinically relevant, and cost effective care to individuals with left ventricular failure and coronary artery disease.
KEY WORDS: Left ventricular ejection fraction, End systolic volume, End diastolic volume, Myocardial viability.
