Healthy Volunteers
Conditions
Brief summary
Laboratory study on healthy volunteers to acquire spectral video data from the tongue and fingers as well as photoplethysmographic data from the forehead, fingers, and earlobes to evaluate and optimize algorithms for imaging photoplethysmography (iPPG) and multispectral imaging (MSI)
Interventions
OTHERspectral imaging
non-contact, non-invasive hyperspectral and multispectral imaging without a diagnostic test
OTHERphotoplethysmography
non-invasive pulse oximetry without a diagnostic test
Sponsors
University of Leipzig
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* healthy volunteers \>= 18 years old
Exclusion criteria
* pregnant and nursing women * persons unable to consent * persons with tattoos or diseases on the tongue, finger, ear, or forehead * narcoleptics * epileptics * persons with arterial hypertension, peripheral arterial disease, anemia, Raynaud syndrome, autoimmune vasculitides, Takayasu arteritis, venous insuffiencies, microangiopathy, diabetic vasculopathy, scleroderma
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| RGB video data | 16 minutes | true color video data (10 bit per channel \[red, green, blue\]) from tongues and fingers |
| hyperspectral data | 16 minutes | false color parameter images, representing the oxygenation in %; the perfusion; the hemoglobin, water, and fat content of tissue in arbitrary units betwenn 0 and 100 from tongues and fingers (imaged areas have to correspond to RGB video data) |
| multispectral video data | 16 minutes | true color video data (10 bit per channel \[red, green, blue\]) from tongues and fingers (imaged areas have to correspond to RGB video data) |
| plethysmographic wave | 5 minutes | numerical value in arbitrary values representing the amount of transmitted/reflected light over time through fingers or earlobes or from the forehead |
| pulse | 5 minutes | frequency in bpm (beats per minute) or Hz (Hertz) |
| pulsation index | 5 minutes | ratio between pulsating and non-pulsating tissue components in % |
| SpO2 | 5 minutes | oxygenation of arterial blood in %, measured with a pulse oximeter |
Countries
Germany
Contacts
Primary ContactInes Gockel, Prof. Dr.
Outcome results
None listed