Pulse wave transit time measured by imaging photoplethysmography in upper extremities

5th International Conference of Photonics and Information Optics

Volynsky, M.A.^1 ; Mamontov, O.V.^1,2 ; Sidorov, I.S.^1 ; Kamshilin, A.A.^1

Computer Photonics and Videomatics Department, ITMO University, 49 ronverksky Ave., Saint Petersburg

197101, Russia^1

Functional Diagnostics Department, Federal Almazov North-West Medical Research Centre, 2 Akkuratova Str., Saint Petersburg

197341, Russia^2

关键词: Automatic selection;    Environmental noise;    Healthy subjects;    Highly reliable;    Pulse wave transit time;    Simultaneous recording;    Upper extremity;    Vascular disease;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/737/1/012053/pdf
DOI  :  10.1088/1742-6596/737/1/012053

来源: IOP

【 摘 要 】

We describe highly reliable measurement method of the pulse wave transit time (PWTT) to human limbs by using simultaneous recordings of imaging photoplethysmography and electrocardiography. High accuracy of measurements was achieved by access to a larger number of statistically independent data obtained simultaneously in different points. The method is characterized by higher diagnostic reliability because of automatic selection of the regions less affected by environmental noise. The technique was tested in the group of 12 young healthy subjects aged from 21 to 33 years. Even though PWTT in right and left hands was comparable after averaging over the whole group of subjects, significant difference in the time delay of pulse wave between the hands was found in several individuals. The technique can be used for early-stage diagnostics of various vascular diseases.