MR-guided percutaneous cryotherapy of malignant liver tumor under horizontal-magnetic open system: initial experience.
OBJECTIVE
We describe the feasibility and accuracy of magnetic resonance (MR)-guided cryotherapy for malignant liver tumor, using a horizontal-magnetic open system.


METHODS
Using an MR-compatible cryotherapy system and horizontal-magnetic open-configuration MR scanner, we performed percutaneous cryotherapy for four malignant liver tumors.


RESULTS
All procedures were carried out safely and accurately without any serious complication. Residual tumor was observed in one patient with metastatic liver tumor located directly under the diaphragm.


CONCLUSIONS
MR-guided cryotherapy appears to be ideal and desirable as a minimally invasive therapy for liver tumor.
Department of Radiology, Jikei University, Kashiwa Hospital, 163-1 Kashiwa-shita, Kashiwa, Chiba 277-8567, Japan.
Michiko
M
Dohi
Junta
J
Harada
Takuji
T
Mogami
Kunihiko
K
Fukuda
Yoichi
Y
Toyama
Hideyuki
H
Kashiwagi
D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000473:pathology / Q000628:therapy*; D003110:Colonic Neoplasms / Q000473:pathology / Q000628:therapy*; D017679:Cryotherapy / Q000379:methods*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000473:pathology / Q000556:secondary / Q000628:therapy*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D018365:Neoplasm, Residual; D015203:Reproducibility of Results; D016896:Treatment Outcome