[Skills and the clinical application of CT guided radioactive seed 125I implantation in treating multiple lung metastatic masses].
OBJECTIVE
125I seed implantation treatment of pulmonary metastases, often because of complicated structure of the chest, was considered as restricted areas. The aim of this study is to evaluate the effectiveness of CT guided radioactive 125I seed implantation in treating lung metastatic tumors.


METHODS
Totally 115 metastatic masses were found in 30 patients with CT guiding. 125I seeds were implanted into lung metastatic masses. The approach of implantation was determined according to the location of the lesions (hilar masses, peripheral masses and masses covered by skeletal thorax). The therapeutic effects were evaluated by CT.


RESULTS
Uniform distribution were achieved by single puncture in 84.3% of patients. The rest patients (15.7%) were received replanting. The follow-up period was 6-24 months (mean 14.6). Among 115 lesions in 30 cases, complete response (CR) was achieved in 80 nodes, partial response (PR) in 20 nodes, No change (NC) in 8 nodes and progressive disease (PD) in 7 nodes. The total response rate was 86.9%. The one-year local control rate were 93.9% (108/115). No severe perioperative complications occurred.


CONCLUSIONS
CT guided radioactive seed 125I implantation is a safe and effective procedure in treating multiple lung metastatic tumor with minimal invasion.
Li
Wei
W
Department of Thoracic Surgery, General Hospital of Chengdu Command, Chengdu 610083, China.
Dan
Gang
G
Jiang
Jianqing
J
Yang
Lie
L
Huang
Xuequan
X
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes / Q000627:therapeutic use*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy* / Q000556:secondary*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
D007457:Iodine Radioisotopes