Table 2

 Positive imaging studies in patients with a clinical diagnosis of PE. The lung scans include all ventilation-perfusion and perfusion scans reported as ‘high probability’

n (%)
None94 (45.8)
One84 (41.0)
 Lung scan33
 Leg venography28
 Leg US scan19
Two26 (12.7)
 Lung scan + leg venography12
 Lung scan + leg US scan10
 Lung scan + arteriography1
 Leg venography + US scan2
 Leg venography + arteriography1
Three1 (0.5)
 Lung scan + arteriography + leg US