摘要
OBJECTIVE: To obtain information about the quality of scars of healed venous leg ulcers compared with intact skin on the opposite leg by using high-frequency ultrasound. METHODS: Twenty-eight patients (16 women, 12 men, aged 31 - 89 years) whose venous ulcers had healed and scars formed were included in this study. The echogenicities of scars were measured with a 20 MHz high-frequency ultrasound Dermascan. The thickness of epidermis and dermis was assessed and the number of low echogenic pixels (LEPs) in the papillary dermis and reticular dermis were counted using image analysis software. RESULTS: The average epidermal thickness of the scars after 1 week to 20 years of healing was significantly increased compared to those of the control (P
目的 观察静脉溃疡患者愈合后皮肤超声结构的变化 ,探讨创面愈合质量。方法 应用皮肤超声仪检测静脉溃疡病人愈合后瘢痕表皮及真皮的厚度 ,分析真皮中低回声区像素 (LEPs)。结果 与正常皮肤比较 ,静脉溃疡愈合后瘢痕的平均表皮厚度显著增加 (P <0 0 1) ,平均真皮厚度显著降低 (P <0 0 1) ,而真皮中LEPs的数量及分布均无明显变化。皮肤的回声参数与创面愈合时间、创面大小、创面存在时间及病人年龄均无显著相关性。结论 静脉溃疡患者创面愈合后 ,真皮中液体的数量及分布无显著改变 。
