The role of diffuse correlation spectroscopy and freuuency-domain near-infrared spectroscopy in monitoring cerebral hemodynamics during hypothermic circulatory arrests

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Zavriyev A., Kaya K., Farzam P., Farzam P. Y., Sunwoo J., Jassar A. S., ...More

JTCVS TECHNIQUES, vol.7, pp.161-177, 2021 (ESCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 7
  • Publication Date: 2021
  • Doi Number: 10.1016/j.xjtc.2021.01.023
  • Journal Name: JTCVS TECHNIQUES
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
  • Page Numbers: pp.161-177
  • Keywords: antegrade cerebral perfusion, brain imaging, cerebral blood flow, diffuse correlation spectroscopy, hypothermic circulatory arrest, near-infrared spectroscopy, retrograde cerebral perfusion, TISSUE
  • Hacettepe University Affiliated: Yes

Abstract

Objectives: Real-time noninvasive monitoring of cerebral blood flow (CBF) during surgery is key to reducing mortality rates associated with adult cardiac surgeries requiring hypothermic circulatory arrest (HCA). We explored a method to monitor cerebral blood flow during different brain protection techniques using diffuse correlation spectroscopy (DCS), a noninvasive optical technique which, combined with frequency-domain near-infrared spectroscopy (FDNIRS), also provides a measure of oxygen metabolism.