Scintigraphy and angiography in pulmonary embolism.
In 14 patients with acute pulmonary embolism, pulmonary artery angiography was made within 6 h after ventilation-perfusion scintigraphy. The extent of embolization was evaluated by an embolic score system with a maximum value of 20 in cases of complete bilateral occlusion. The perfusion scintigraphic and pulmonary angiographic embolic scores correlated (r = 0.47), but the paired values differed (p less than 0.05). Exclusion of four cases with non-complete obstructing emboli in the main branches of the pulmonary artery rendered the differences of the paired scores not significant, with mean scintigraphic and angiographic scores of 9.7 and 10.1, respectively (r = 0.79). The four cases with non-complete obstructing central emboli had mean scores with the scintigraphic and angiographic method of 9.0 and 16.2, respectively (p less than 0.01), implying that the scintigraphic method may underestimate the degree of embolization in cases with non-complete obstructing central emboli.
Lund
O
O
Schifter
S
S
Nielsen
T T
TT
Rønne
K
K
D000792:Angiography; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008863:Microspheres; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D011655:Pulmonary Embolism / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D013667:Technetium; D013997:Time Factors; D014980:Xenon Radioisotopes
D014980:Xenon Radioisotopes; D013667:Technetium