[Brachytherapy--carcinoma of the tongue].
In a review of 193 patients with carcinoma of the tongue who underwent interstitial radiotherapy in our hospital from November 1978 to 1986, 5 year actuarial local control rate were 97%, 87%, 58% and 77% for T1, T2, T3 and T4 respectively. Mucosal ulcers with tissue defects and bone exposure of the mandible occurred in 5 years after the treatments, 6%, 22%, 44%, and 100% for T1, T2, T3 and T4, respectively. Therapeutic ratio was 1 in patients with T1 who underwent interstitial radiotherapy (70 Gy/7 days) alone while it was less than 1 in those with T2 or more. Therapeutic gain factor was less than 1 in patients with combined external radiotherapy.
Jingu
K
K
Dept. of Radiology, Faculty of Med., Kyusyu Univ.
Hayabuchi
N
N
Matsui
M
M
Wada
S
S
Miyoshi
M
M
Uehara
S
S
Shimamura
Y
Y
Hirata
H
H
Ariji
E
E
Moriguchi
S
S
D000328:Adult; D001918:Brachytherapy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D011879:Radiotherapy Dosage; D014062:Tongue Neoplasms / Q000401:mortality / Q000473:pathology / Q000532:radiotherapy*