Multi-detector computed tomographic pulmonary angiography (CTPA) allows for better visualization of peripheral pulmonary arteries allowing for diagnosis of small peripheral emboli limited to the subsegmental pulmonary arteries. Interestingly as these SSPE’s get diagnosed more and more, two questions come to mind:
- What is the prognostic utility of diagnosing SSPEs?
- What is the morbidity and mortality of SSPEs compared to more proximal PEs?
A recent study in 2013 Blood looked at these questions. 1