Spiral CT diagnosis of pulmonary embolus

With the advent of new diagnostic techniques such as the spiral computed to mography angiogram, the sequence of tests needed to diagnose a pulmonary em bolus may be more efficient if the testing behavior is tailored to the pati ent's underlying cardiopulmonary status. This may be particularly important if the patient is elderly or has other reasons for limited cardiopulmonary reserve. We report several cases with a new sequence of testing behavior.