Measurement of regional lung blood flow by videodensitometry.
The pulmonary blood flow in patients with embolism, emphysema or a tumour of the lung was measured by videodensitometry in 27 lungs from 17 patients. The results suggest that the relative regional and total lung blood flow can easily be estimated. It is also easy to demonstrate abnormalities in the distribution of the lung blood flow. The mean transit time in the normal lung is considered to be 1.5 to 4 seconds.
D015502:Absorptiometry, Photon / Q000379:methods*; D000328:Adult; D000368:Aged; D001776:Blood Circulation Time; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011652:Pulmonary Circulation; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging; D011656:Pulmonary Emphysema / Q000000981:diagnostic imaging; D012039:Regional Blood Flow; D014741:Video Recording / Q000379:methods