TY - JOUR
T1 - Histopathologic Consideration of Fiducial Gold Markers Inserted for Real-Time Tumor-Tracking Radiotherapy Against Lung Cancer
AU - Imura, Mikado
AU - Yamazaki, Koichi
AU - Kubota, Kanako C.
AU - Itoh, Tomoo
AU - Onimaru, Rikiya
AU - Cho, Yasushi
AU - Hida, Yasuhiro
AU - Kaga, Kichizo
AU - Onodera, Yuya
AU - Ogura, Shigeaki
AU - Dosaka-Akita, Hirotoshi
AU - Shirato, Hiroki
AU - Nishimura, Masaharu
PY - 2008/2/1
Y1 - 2008/2/1
N2 - Purpose: Internal fiducial gold markers, safely inserted with bronchoscopy, have been used in real-time tumor-tracking radiotherapy for lung cancer. We investigated the histopathologic findings at several points after the insertion of the gold markers. Methods and Materials: Sixteen gold markers were inserted for preoperative marking in 7 patients who subsequently underwent partial resection of tumors by video-assisted thoracoscopic surgery within 7 days. Results: Fibrotic changes and hyperplasia of type 2 pneumocytes around the markers were seen 5 or 7 days after insertion, and fibrin exudation without fibrosis was detected 1 or 2 days after insertion. Conclusions: Because fibroblastic changes start approximately 5 days after gold marker insertion, real-time tumor-tracking radiotherapy should be started >5 days after gold marker insertion.
AB - Purpose: Internal fiducial gold markers, safely inserted with bronchoscopy, have been used in real-time tumor-tracking radiotherapy for lung cancer. We investigated the histopathologic findings at several points after the insertion of the gold markers. Methods and Materials: Sixteen gold markers were inserted for preoperative marking in 7 patients who subsequently underwent partial resection of tumors by video-assisted thoracoscopic surgery within 7 days. Results: Fibrotic changes and hyperplasia of type 2 pneumocytes around the markers were seen 5 or 7 days after insertion, and fibrin exudation without fibrosis was detected 1 or 2 days after insertion. Conclusions: Because fibroblastic changes start approximately 5 days after gold marker insertion, real-time tumor-tracking radiotherapy should be started >5 days after gold marker insertion.
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U2 - 10.1016/j.ijrobp.2007.06.064
DO - 10.1016/j.ijrobp.2007.06.064
M3 - Article
C2 - 17881147
AN - SCOPUS:38149030230
SN - 0360-3016
VL - 70
SP - 382
EP - 384
JO - International Journal of Radiation Oncology Biology Physics
JF - International Journal of Radiation Oncology Biology Physics
IS - 2
ER -