Last revised by Yahya Baba on 4 Mar 2023

Carbodissection is an organ displacement technique that consists of percutaneous carbon dioxide (CO2) insufflation to displace non-target structures and deviate them from needle trajectory during biopsies and/or to prevent thermal injury during microwave, radiofrequency, or cryoablation.

Similar to hydrodissection, carbodissection can be performed when there is non-target structure proximity ≤ 10 mm1.

May hide an iatrogenic pneumoperitoneum when trying to displace the bowel.

Gas distributes in non-dependent areas, and cannot be used for all lesions3 - hydrodissection is a good alternative in this case.

Cannot be used for US-guided cervical and breast procedures, since gas blocks ultrasounds.

Displacement of the strcutures to protect in the wrong direction, especially in epidural carbodissection3.

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