Indexed on: 01 Sep '65Published on: 01 Sep '65Published in: Pflügers Archiv - European Journal of Physiology
The characteristics of new types of heat clearance probes for the measurements of regional cerebral blood flow are described. They can be used for measurements in anaesthetized and conscious animals. A modification of the probes can be used for measurements of regional cerebral blood flow in neurosurgically treated patients. The probes have essential advantages against previously described probes. Alternating measurements in both hemispheres are possible. The influence of temperature variations within the brain can be excluded because of the symmetric arrangement of the heated thermojunction and the reference junction in the brain. In measurements of the temperature fields around the heated part of the probes in dead brain and living brain the effectively heated tissue volume could be determined.