Intravenous digital subtraction angiography and lung imaging: compared value in the diagnosis of pulmonary embolism.
In a prospective study, 42 consecutive patients with clinically suspected pulmonary embolism underwent ventilation-perfusion (V-Q) lung imaging and digital subtraction angiography (DSA) concurrently with selective conventional pulmonary angiography (CPA). Thirty-eight studies achieved within 24 hours were reviewed independently by two pairs of observers. The findings were compared using CPA as the gold standard. V-Q lung imaging had a high percentage of indeterminate results, but none were false negative nor false positive. DSA had a lower percentage of indeterminate results but missed four of the 25 positive cases and erroneously affirmed the presence of pulmonary embolism in three cases. Therefore, the authors think that V-Q lung imaging should remain the screening examination of choice for evaluating patients with suspected pulmonary embolism.
Rosso
J
J
Department of Nuclear Medicine, Hospital Henri Mondor, Créteil, France.
Musset
D
D
Petitpretz
P
P
Mensch
J
J
Duroux
P
P
Galle
P
P
Meignan
M
M
D000792:Angiography / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D011446:Prospective Studies; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging; D011856:Radiographic Image Enhancement; D011877:Radionuclide Imaging; D013382:Subtraction Technique; D013668:Technetium Tc 99m Aggregated Albumin
D013668:Technetium Tc 99m Aggregated Albumin