Table 2

CTPA positivity rate and location of pulmonary emboli
CTPA Results 2000 2005 2008 Total p
n 74 383 393 850
Embolus present (%) 25.7 19.1 14.8 17.7 0.048
Location of embolus for positive studies (%)
 Central PE 89.6 46.6 51.8 53.9 0.003
 Peripheral PE 10.5 53.4 48.3 46

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

Open Data