Evaluation of Tc99m-Macro Aggregated Albumin (MAA) Lung perfusion study in detection of pulmonary embolism in (R I C K)

Abstract

In this experiment thirty-five patients were examined in order to measure the function of lung scan in detection of pulmonary embolism. And evaluate the value of radionuclide lung perfusion scan in cases of pulmonary embolism. And to define the role of TC99m-MAA in detection of pulmonary embolism. It is found that 20 cases (57.1%) out of 35 cases shows a normal lung perfusion scan while 15 cases (42.9) out of 35 shows low, medium and high probability of pulmonary embolism. The Tc99m-MAA is superior in pulmonary embolism detection than the other methods when it is used in combination with radioactive gases (Xe133) in ventilation lung scan.