Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 15 June 1979:
Vol. 204. no. 4398, pp. 1215 - 1217
DOI: 10.1126/science.451567
Prev | Table of Contents | Next

Articles

Science, Vol 204, Issue 4398, 1215-1217
Copyright © 1979 by American Association for the Advancement of Science

articles

Tissue perfusion rate determined from the decay of oxygen-15 activity after photon activation in situ

WL Hughes, GH Nussbaum, R Connolly, B Emami, and P Reilly

Rates of cerebral perfusion were obtained from measurements of the disappearance (wash-out) of oxygen-15 after in situ tissue activation with 45-million-volt x-rays. In an anesthetized cat, typical values were 90 milliliters per minute per 100 grams of tissue, with 55 percent wash-out. In a specific radiotherapy patient, the value was 65 milliliters per minute per 100 grams of tissue, with 63 percent wash-out of oxygen-15 through incorporation into tissue water.




To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)