Back to Search Start Over

Microvascular assessment of fascio-cutaneous flaps by ultrasound: A large animal study.

Authors :
Goudot, Guillaume
Berkane, Yanis
de Clermont-Tonnerre, Eloi
Guinier, Claire
von Reiterdank, Irina Filz
van Kampen, Antonia
Uygun, Korkut
Cetrulo Jr, Curtis L.
Uygun, Basak E.
Dua, Anahita
Lellouch, Alexandre G.
Source :
Frontiers in Physiology; 12/15/2022, Vol. 13, p01-08, 8p
Publication Year :
2022

Abstract

Objectives: Blood perfusion quality of a flap is the main prognostic factor for success. Microvascular evaluation remains mostly inaccessible. We aimed to evaluate the microflow imaging mode, MV-Flow, in assessing flap microvascularization in a pig model of the fasciocutaneous flap. Methods: On five pigs, bilateral saphenous fascio-cutaneous flaps were procured on the superficial femoral vessels. A conventional ultrasound evaluation in pulsed Doppler and color Doppler was conducted on the ten flaps allowing for the calculation of the saphenous artery flow rate. The MV-Flow mode was then applied: for qualitative analysis, with identification of saphenous artery collaterals; then quantitative, with repeated measurements of the Vascularity Index (VI), percentage of pixels where flow is detected relative to the total ultrasound view area. The measurements were then repeated after increasing arterial flow by clamping the distal femoral artery. Results: The MV-Flow mode allowed a better follow-up of the saphenous artery's collaterals and detected microflows not seen with the color Doppler. The VI was correlated to the saphenous artery flow rate (Spearman rho of 0.64; p = 0.002) and allowed to monitor the flap perfusion variations. Conclusion: Ultrasound imaging of microvascularization by MV-Flow mode and its quantification by VI provides valuable information in evaluating the microvascularization of flaps. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
1664042X
Volume :
13
Database :
Complementary Index
Journal :
Frontiers in Physiology
Publication Type :
Academic Journal
Accession number :
161036787
Full Text :
https://doi.org/10.3389/fphys.2022.1063240