Microvascular assessment of fascio-cutaneous flaps by ultrasound: A large animal study.
Microvascular assessment of fascio-cutaneous flaps by ultrasound: A large animal study.
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DOI：
10.3389/fphys.2022.1063240
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发表时间：
2022
影响因子：
4
通讯作者：
Lellouch, Alexandre G.
中科院分区：
文献类型：
--
作者：
Goudot, Guillaume;Berkane, Yanis;de Clermont-Tonnerre, Eloi;Guinier, Claire;von Reiterdank, Irina Filz;van Kampen, Antonia;Uygun, Korkut;Cetrulo, Curtis L.;Uygun, Basak E.;Dua, Anahita;Lellouch, Alexandre G.
关键词：
目的：皮瓣血流灌注质量是影响皮瓣移植成功的主要因素。微血管评估仍然难以获得。我们的目的是评估微流成像模式，MV-Flow，在评估皮瓣微血管化的猪筋膜皮瓣模型。方法：在5头猪的股浅血管上制备双侧隐筋膜皮瓣。对10个皮瓣进行常规的脉冲多普勒和彩色多普勒超声评估，计算隐动脉流速。然后应用MV-Flow模式进行定性分析，识别隐动脉侧支；然后是定量的，通过反复测量血管指数（VI），即相对于整个超声视图区域检测到血流的像素百分比。然后通过夹紧股远端动脉增加动脉流量后重复测量。结果：MV-Flow模式可以更好地跟踪隐动脉的侧枝，并检测到彩色多普勒未见的微血流。VI与隐动脉血流率相关（Spearman rho = 0.64; p = 0.002），可监测皮瓣灌注变化。结论：MV-Flow模式下微血管形成的超声成像及VI定量成像为皮瓣微血管形成的评价提供了有价值的信息。
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 fascio-cutaneous 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.
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影响因子：
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作者：
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通讯作者：
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影响因子：
9
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Revzin, Margarita, V
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影响因子：
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影响因子：
3.4
作者：
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通讯作者：
Lim, Dong-Jun