Length-normalized pulse photoplethysmography

A noninvasive method to measure blood hemoglobin

Thomas K. Aldrich, Mark Moosikasuwan, Samir D. Shah, Kedar S. Deshpande

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A study was performed to demonstrate that length-normalized pulse photoplethysmography, with measurement of changing attenuation to changing length ratios (D905/l) proximal to the fingernail during arterial pulsations, may be feasible as a noninvasive technique to measure blood hemoglobin. Some 24 subjects were tested, including several with very severe anemia. In these subjects, with normal SpO2, normal metHb and normal to near-normal COHb, using crude instrumentation adapted from off-the-shelf equipment, close correlation was found between [Hb] and D905/l, high sensitivity for the detection of anemia, and an adequate specificity for a screening tool.

Original languageEnglish (US)
Pages (from-to)1291-1298
Number of pages8
JournalAnnals of Biomedical Engineering
Volume30
Issue number10
DOIs
StatePublished - 2002

Fingerprint

Photoplethysmography
Hemoglobin
Screening
Blood

Keywords

  • Absorption
  • Anemia
  • Clinical monitoring
  • Optical properties
  • Pulse oximetry
  • Sonomicrometry

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

Length-normalized pulse photoplethysmography : A noninvasive method to measure blood hemoglobin. / Aldrich, Thomas K.; Moosikasuwan, Mark; Shah, Samir D.; Deshpande, Kedar S.

In: Annals of Biomedical Engineering, Vol. 30, No. 10, 2002, p. 1291-1298.

Research output: Contribution to journalArticle

Aldrich, Thomas K. ; Moosikasuwan, Mark ; Shah, Samir D. ; Deshpande, Kedar S. / Length-normalized pulse photoplethysmography : A noninvasive method to measure blood hemoglobin. In: Annals of Biomedical Engineering. 2002 ; Vol. 30, No. 10. pp. 1291-1298.
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