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(Stroke. 1970;1:100.)
© 1970 American Heart Association, Inc.

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Assessment of Cerebral Circulation (Cortical Blood Flow) with an Infrared Microscope

ROBERT E. ANDERSON ¹; ARTHUR G. WALTZ M.D.¹; TAKENORI YAMAGUCHI M.D. ¹; ROBERT D. OSTROM ¹

¹ Mayo Clinic and Mayo Foundation: Sections of Neurology and Cerebrovascular Clinical Research Center, Rochester, Minnesota

An infrared microscope was used for the remote detection of the surface temperature of the cerebral cortex of experimental cats. With this instrument a qualitative assessment of the circulation of the cerebral cortex can be made without interference with the integrity of the brain or vascular tissues or the reactivity of blood vessels. Although the instrument is sensitive enough to detect minor changes of cortical blood flow, its use appears limited to the detection of rapid or transient changes of cerebral circulation and is not suitable for long-term measurements of surface temperature of the brain.

Key Words: brain temperature • cerebral cortex • surface temperature • cerebrovascular disorders • infrared measurement