When a cryogen spurt is applied to the skin surface for an appropriately short period of time (on the order of milliseconds), the cooling remains localized in the epidermis, while leaving the temperature of the deeper vessels of hemangiomas unchanged.
When a cryogen spurt is applied to the skin surface for an appropriately short period of time (on the order of milliseconds), the cooling remains localized in the epidermis, while leaving the temperature of the deeper vessels of hemangiomas unchanged.
摘要雷射治疗血管瘤成功的先决条件是经由选择性光热效应破坏皮下扩张的血管而不造成表皮的伤害。