Defects observed in pulmonary perfusion scintiphotography often have been equated with a
diagnosis of pulmonary embolism. In fact, such defects have lacked diagnostic specificity …

The appearance of the lung scans in 61 clinically asymptomatic volunteers is described. Of
the 61 volunteers, 16%(10 subjects) exhibited some type of perfusion defect. Six subjects …

Perfusion scintigrams of 55 patients with radiographic evidence of diffuse lung disease were
reviewed. Thirty-nine had acute and/or chronic changes caused by congestive heart failure …

The incidence at autopsy of undiagnosed pulmonary emboli amply demonstrates the
inadequacy of current diagnostic measures. Physicians alert to this discrepancy have …

Lung scintigrams and pulmonary angiograms of 111 patients with suspected pulmonary
embolism who had matching perfusion defects and radiographic abnormalities (infiltrate …

Pairs of sequential perfusion lung scans and pulmonary angiograms obtained in 45 patients
were reviewed to investigate the utility of short-term, sequential scintigraphy in the diagnosis …

Pulmonary scintigrams were analyzed in conjunction with matched pulmonary angiograms
for perfusion patterns, relation of perfusion to ventilation, and changes, with time, in the …

METHODS One hundred and five consecutive patients who had both pulmonary
scintigraphy and angiography in the past 3 years were the subjects of this study. Seventy …

The technique of lung scintiscanning described by various investigators {1-3) has provided a
graphic method for study of the regional distribution of pulmonary blood flow. After …

A summary of the lung scan patterns in pulmonary embolism versus those in congestive
heart failure and emphysema is given in Table v. The following conclusions may be drawn …