Govind Darshna, Thomas Kate N, Hill Brigid G, van Rij Andre M
Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.
Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.
Ultrasound Med Biol. 2018 Apr;44(4):756-761. doi: 10.1016/j.ultrasmedbio.2017.11.014. Epub 2018 Jan 12.
This study investigated whether microvenous reflux can be detected in limbs with chronic venous disease using superb microvascular imaging (SMI) and colour Doppler imaging. Participants with venous disease (limbs, n = 26) and without venous disease (limbs, n = 10) were studied. The skin in the medial gaiter region was imaged using both SMI and colour Doppler to identify reflux in the small vessels in response to distal augmentation. The diameters and depths of responsive vessels were measured. In limbs with venous disease, reflux in response to provocation was visualised with SMI in a greater number of vessels (12/26 versus 4/26) and smaller vessels than with colour Doppler. Reflux in the superficial skin veins was demonstrated in one control participant (1/10) using SMI and in none using colour Doppler (0/10). Our study indicates that microvenous reflux is demonstrable in limbs with venous disease and that SMI is more sensitive than colour Doppler.
本研究调查了使用超微血管成像（SMI）和彩色多普勒成像能否在慢性静脉疾病患者的肢体中检测到微静脉反流。研究了患有静脉疾病的参与者（肢体，n = 26）和没有静脉疾病的参与者（肢体，n = 10）。使用SMI和彩色多普勒对内侧绑腿区域的皮肤进行成像，以识别因远端加压而导致的小血管反流。测量反应性血管的直径和深度。在患有静脉疾病的肢体中，与彩色多普勒相比，使用SMI在更多的血管（12/26对4/26）和更小的血管中可视化了激发后的反流。使用SMI在一名对照参与者（1/10）中显示了浅表皮肤静脉反流，而使用彩色多普勒则未显示（0/10）。我们的研究表明，在患有静脉疾病的肢体中可证实存在微静脉反流，并且SMI比彩色多普勒更敏感。
