[Radiofrequency ablation of pulmonary malignancies].
Radiofrequency ablation (RFA) with a maximum output of < or = 70 W was used under CT guidance to treat 14 tumors (median diameter 1.5 cm, range 0.8 to 2.4 cm) in 6 patients. Primary lung cancer was treated in 2 patients, and metastatic lung tumors were treated in 4 patients. Good response was confirmed in 6 tumors on CT images, in one tumor on PET images, and in 2 tumors by histologic examination. In the other 5 tumors, curative effect was not determined because consolidation shadows surrounded the tumors. Complications were mild (pneumothoraces, 5; sputum cruentum, 4; subcutaneous emphysema, 3) except for one case of pleurisy. RFA of pulmonary malignancies appears to be a safe, effective treatment if a low output of less than 70 W is applied.
Toyoshima
Masami
M
Department of Radiology, Osaka City University.
Matsuoka
Toshiyuki
T
Ohkuma
Tomohisa
T
Yamamoto
Akira
A
Ohyama
Yoshimasa
Y
Tanaka
Saori
S
Nakamura
Kenji
K
Yamada
Ryusaku
R
Inoue
Yuichi
Y
Inoue
Kiyotoshi
K
Nishida
Tatsuya
T
Usuki
Noriaki
N
D000368:Aged; D000369:Aged, 80 and over; D017115:Catheter Ablation; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome