Lung scan and radionuclide pulmonary angiography can effectively diagnose and monitor massive pulmonary emboli, potentially obviating the need for contrast angiography.
May support noninvasive PE monitoring in select cases; leaves open whether it can routinely replace contrast angiography.
A dramatic case of occlusion of the right pulmonary artery is presented. The diagnosis was clearly established by means of a lung scan and a radionuclide pulmonary angiogram. The entire course of the disease process was followed by radionuclide studies with a gradual but persistent return to normal. Due to the preciseness of the evidence presented, contrast angiography was not. thought necessary.
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Klein et al. (1974) studied this question.
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