The test that allows for direct visualisation of a thrombus or embolism in a pulmonary artery branch, and therefore is the most accurate diagnostic test for pulmonary embolus (PE), is called:
a. pulmonary angiogram.
b. ventilation perfusion scan.
c. electrocardiogram.
d. computed tomography pulmonary angiogram.
a
A pulmonary angiogram allows for direct visualisation
of a thrombus or embolism in a pulmonary artery branch
and so is the most accurate diagnostic test for PE. However
while pulmonary angiogram is considered the most accurate,
it is not cost effective or easily performed. In recent years
the computed tomography pulmonary angiogram (CTPA)
has replaced pulmonary angiograms in the diagnosis of PEs.
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