Interfinger Differences in Pulse Oximetry Signal-Derived Peripheral Perfusion Index: A Single-Center Exploratory Study
PPI values measured using the pulse oximeter showed the smallest interfinger difference between the index and ring fingers. If changing the finger to which the probe is attached during clinical or research use is needed, it may be possible to consistently measure the PPI values by alternately attaching the probe to the index and ring fingers.
Authors
- Tetsuya Hara (ORCID: https://orcid.org/0000-0003-2793-1932)
- Shuntaro Sato (ORCID: https://orcid.org/0000-0002-6055-3649)
- Taiga Ichinomiya (ORCID: https://orcid.org/0000-0003-0501-4463)
- Motohiro Sekino (ORCID: https://orcid.org/0000-0002-3931-1012)
- Shohei Kaneko (ORCID: https://orcid.org/0000-0002-0156-4559)
- Ushio Higashijima
- Ryosuke Shintani
- Takayuki Morimoto (ORCID: https://orcid.org/0000-0002-9974-3538)
- Naoya Iwasaki
Institutions
- Nagasaki University Hospital (JP)
- Nagasaki University (JP)
Publication Details
- Journal
- Cureus
- Published
- 2025-04-12
- DOI
- https://doi.org/10.7759/cureus.82131
- Primary Topic
- Non-Invasive Vital Sign Monitoring
- Type
- article
- Field-Weighted Citation Impact
- 0.00