Evaluation of Cardiac Output Using Heart Rate and Scintigraphy

Abstract

Recently measuring of cardiac performance by scintigraphy has been used as indicator of heart muscle ability to contract . This study aimed to identify and evaluatecardiac performance (cardiac output) by nuclear medicine technique. The data was collected from 50 patients at Elnilein medical center, department of nuclear medicine, during the period This study was conducted during the period from april 2014 to august 2014. The patients were injected with a 99mTcO-4 sestamibi then gamma camera was used to detect the count rate and hence was calculated. The data were analyzed by using statistical packages for social studies (SPSS) under windows using linear association between arterial blood pressure and age, body mass index, stroke volume, cardiac output and ejection fraction. The results showed that the total 50 patient with main age equal60.46 ± 12.0 years and 27.8 ± 7.0 for body mass index.The mean heart rate, stroke volume, ,ejection fraction and cardiac output for the patient included in this study was79.50 beat per minutes ± 11.1 , 79.46 ml ± 11.9, 61.8 % ± 4.6 and5.90 L/min ± 1.2 respectively.Consequently the results revealed that the stroke volume ,ejection fraction, age and body mass index as the sesdecrease as heart rate increase.by 0.897 ml per heart beats, 0.221 % per heart beats,60.46 years ± 12.0 and 27.8 ± 7.0 units respectivelycardiac output have diect proportiona with heart rate. the cardiac output increase by .0.089 l/min per heart rate .