Detecting hemodynamic changes in the foot vessels of diabetic patients by photoacoustic tomography.

Abstract:

:Limb perfusion monitoring is critical for diabetes mellitus (DM) patients as they are vulnerable to vascular complications due to prolonged hyperglycemia. However, current clinical approaches are ineffective in vascular imaging and in assessing vascular function in lower limbs. In this work, a concave ultrasound transducer array-based photoacoustic tomography (PAT) system was used to image the foot dorsal section of a subject, and a total of seven DM patients and seven healthy volunteers were enrolled in this study. Hemodynamic changes in foot vessels during vascular occlusion as well as oxygen saturation (SO2 ) in rest were analyzed for both groups. The results obtained showed that DM patients have a unique peripheral hemodynamic response to occlusion and a lower level SO2 , compared to that for healthy subjects. This suggests that PAT has the potential to detect vascular dysfunction in DM patients and to measure the effect of treatment.

journal_name

J Biophotonics

journal_title

Journal of biophotonics

authors

Yang J,Zhang G,Shang Q,Wu M,Huang L,Jiang H

doi

10.1002/jbio.202000011

subject

Has Abstract

pub_date

2020-08-01 00:00:00

pages

e202000011

issue

8

eissn

1864-063X

issn

1864-0648

journal_volume

13

pub_type

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