Computer-aided evaluation of regional pulmonary function

✍ Scribed by J. Wartak; T.R. Overton; L.W. Friedenberg; B.J. Sproule

• Publisher: Elsevier Science
• Year: 1972
• Tongue: English
• Weight: 599 KB
• Volume: 5
• Category: Article
• ISSN: 0010-4809
• DOI: 10.1016/0010-4809(72)90072-9

✦ Synopsis

Eight paired stationary scintillation detectors combined with a multichannel analyzer and digital computer have been used to determine regional pulmonary function after the administration of radioactive xenon (Xenon-133). Counting was carried out bilaterally over the anterior and posterior thorax for apical, upper middle, lower middle and basal regions. Radioactivity in each of these regions was determined following both injection and rebreathing of Xenon-133 and was then used to calculate the following data: blood flow, blood flow per unit volume, ventilation, ventilation per unit volume, ventilation to perfusion ratio and lung volume. The results are presented in both numerical and graphical form. OBJECTIVES * Supported in part by the Medical Research Council of Canada (Grants #MA-2647 and MA-3352).