Feasibility of a Noncontact Photoplethysmography-Based Mobile App for Noninvasive Hemoglobin Monitoring: Exploratory Observational Study.

ABSTRACT:

Background

Anemia is a widespread global health issue. Hemoglobin (Hb) concentration measurement remains the most common method for anemia screening and diagnosis. In recent years, there has been growing interest in the development of noninvasive point-of-care technologies that eliminate the need for blood sampling.

Objective

This pilot study explores the feasibility of using a noncontact photoplethysmography-based mobile app for Hb monitoring.

Methods

Adult volunteers aged 18 years and older, of both sexes, were consecutively recruited. Participants were seated and allowed a 2-minute rest before measurements. During testing, they faced a smartphone running comestai.app, which used the front-facing camera to capture facial videos. Simultaneous readings were collected

SUBMITTER: Zuccotti G 

PROVIDER: S-EPMC12919986 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature