In percutaneous cryoablation, one or more hollow needles are inserted through the skin directly into a tumor.Doctors can obsere and guide the insertion by combined use of ultrasound and CT.

• 在实施经皮冷冻消融术时，医生使用一支或更多的中空探针穿透皮肤后直接刺入肿瘤组织，整个过程可以使用超声和CT指引操作。