Video camera method for simultaneous measurement of blood flow velocity and pial vessel diameter

F. Gotoh, F. Muramatsu, Y. Fukuuchi, H. Okayasu, K. Tanaka, N. Suzuki, M. Kobari

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A new method for the simultaneous measurement of blood flow velocity and pial vessel diameter is described. The system consists basically of a high-sensitivity vidicon camera, camera control, width analyzer, video densitometer, TV monitor, desktop computer, and multi-pen recorder. The pial vessels are visualized through a cranial window at 25-200x magnification on the TV monitor. The diameter of three target vessels can be recorded simultaneously on the recorder by adjustment of controllable video signal gates using the width analyzer. At the same time, the optical densities of two targets at points upstream and downstream of the pial vessel are measured continuously with video densitometers, and their outputs are recorded on the polygraph and analyzed by the computer. The time difference in the two peaks of time-concentration curves, produced every 2-3 s at the highest frequency by the injection of a small amount of saline through the lingual artery, is measured on-line using the computer. The flow velocity in the vessel is calculated from the time difference and the distance between the two targets. The system was shown to be stable, reliable, and rapid in response. This method may provide a useful tool for research in the field of blood circulation in the brain or any other organ.

Original languageEnglish
Pages (from-to)421-428
Number of pages8
JournalJournal of Cerebral Blood Flow and Metabolism
Volume2
Issue number4
Publication statusPublished - 1982
Externally publishedYes

Fingerprint

Blood Flow Velocity
Blood Circulation
Tongue
Arteries
Injections
Brain
Research

ASJC Scopus subject areas

  • Endocrinology
  • Neuroscience(all)
  • Endocrinology, Diabetes and Metabolism

Cite this

Gotoh, F., Muramatsu, F., Fukuuchi, Y., Okayasu, H., Tanaka, K., Suzuki, N., & Kobari, M. (1982). Video camera method for simultaneous measurement of blood flow velocity and pial vessel diameter. Journal of Cerebral Blood Flow and Metabolism, 2(4), 421-428.

Video camera method for simultaneous measurement of blood flow velocity and pial vessel diameter. / Gotoh, F.; Muramatsu, F.; Fukuuchi, Y.; Okayasu, H.; Tanaka, K.; Suzuki, N.; Kobari, M.

In: Journal of Cerebral Blood Flow and Metabolism, Vol. 2, No. 4, 1982, p. 421-428.

Research output: Contribution to journalArticle

Gotoh, F, Muramatsu, F, Fukuuchi, Y, Okayasu, H, Tanaka, K, Suzuki, N & Kobari, M 1982, 'Video camera method for simultaneous measurement of blood flow velocity and pial vessel diameter', Journal of Cerebral Blood Flow and Metabolism, vol. 2, no. 4, pp. 421-428.
Gotoh, F. ; Muramatsu, F. ; Fukuuchi, Y. ; Okayasu, H. ; Tanaka, K. ; Suzuki, N. ; Kobari, M. / Video camera method for simultaneous measurement of blood flow velocity and pial vessel diameter. In: Journal of Cerebral Blood Flow and Metabolism. 1982 ; Vol. 2, No. 4. pp. 421-428.
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