|CTPA positivity rate and location of pulmonary emboli|
|Embolus present (%)||25.7||19.1||14.8||17.7||0.048|
|Location of embolus for positive studies (%)|
Central PE was defined as PE in the pulmonary trunk, right or left main pulmonary arteries or lobar arteries while PE in segmental or sub-segmental branches were considered peripheral.
There was no correlation between pre-test probability by RGS and location or size of PE.
Chandra et al.
Chandra et al. BMC Pulmonary Medicine 2013 13:9 doi:10.1186/1471-2466-13-9