Radiofrequency ablation combined with CO2 injection for treatment of retroperitoneal tumor: protecting surrounding organs against thermal injury.
OBJECTIVE
The objective of this study was to separate target tumors from adjacent structures by injecting carbon dioxide (CO2) around the tumor to avoid thermal injury and the heat-sink effect from the blood vessel during percutaneous radiofrequency ablation.


CONCLUSIONS
We successfully achieved complete ablation of a retroperitoneal tumor without thermal injury. Imaging-guided percutaneous CO2 injection is useful for preventing thermal injury while achieving complete ablation of the tumor during radiofrequency ablation.
Kariya
Shuji
S
Department of Radiology, Kansai Medical University, 10-15 Fumizono, Moriguchi, Osaka, Japan 570-8507. shuuji@ops.dti.ne.jp
Tanigawa
Noboru
N
Kojima
Hiroyuki
H
Komemushi
Atsushi
A
Shomura
Yuzo
Y
Ueno
Yasuhiro
Y
Shiraishi
Tomokuni
T
Sawada
Satoshi
S
D000310:Adrenal Gland Neoplasms / Q000601:surgery*; D000368:Aged; D002245:Carbon Dioxide / Q000627:therapeutic use*; D002292:Carcinoma, Renal Cell / Q000601:surgery*; D017115:Catheter Ablation; D006801:Humans; D007267:Injections; D007680:Kidney Neoplasms / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D015641:Radiography, Interventional; D014057:Tomography, X-Ray Computed
D002245:Carbon Dioxide