The ventilation/pefusion lung scan is very helpful in detecting and
evaluating pulmonary emboli, obstructive pulmonary disease,
bronchogenic cancer, or unexplained chest pain. The scan takes about
one hour. The patient will breath in a medicine called DTPA while
images are obtained. Next, the isotope MAA will be given through
injection. Actual imaging time is approximately 20-30 minutes.
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