[Percutaneous laser ablation of malignant liver tumors].
OBJECTIVE
To present the technical data, methods and results of percutaneous laser ablation of malignant tumors.


METHODS
In the period from June 1993 to April 2000 a collective of 600 patients with malignant liver tumors and liver metastases from different primary tumors were treated via MR-guided LITT. After sonographically or CT-guided puncture MR-compatible laser catheters were positioned. The tumor destruction was visualized via MR-thermometry. The checkup and the therapy accomplishment ensued in the course of an ambulant therapy concept.


RESULTS
In the course of a local accomplished LITT of liver metastases and malignant liver tumors a local tumor control rate of 97.8 % was achieved. The complication rate was extremely low with a value of 2.2 % (1 441 treatments). The lethality rate was 0.1 %. The mean survival time referring to the whole patient collective was 47.7 months, in the case of liver metastases from a colorectal cancer a value of 46.8 months was achieved.


CONCLUSIONS
MR-guided LITT is a local effective therapy with low morbidity in malignant liver tumors with a maximum quantity of 5 and a size of </= 5 cm.
Vogl
T J
TJ
Institut für Diagnostische und Interventionelle Radiologie, J.W. Goethe-Universität Frankfurt, Germany. t.vogl@em.uni-frankfurt.de
Mack
M G
MG
Straub
R
R
Zangos
S
S
Engelmann
K
K
Eichler
K
K
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D015179:Colorectal Neoplasms; D003627:Data Interpretation, Statistical; D005260:Female; D006801:Humans; D053685:Laser Therapy / Q000379:methods; D008113:Liver Neoplasms / Q000175:diagnosis / Q000401:mortality / Q000556:secondary / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D013997:Time Factors
Perkutane Laserablation von malignen Lebertumoren.