ENTRANCE AND EXIT TL-DOSIMETRY IN THE CONSERVATIVE TREATMENT OF BREAST-CANCER - A PILOT-STUDY FOR THE EORTC-RADIOTHERAPY COOPERATIVE GROUP

被引：29

作者：

HAMERS, HP ^{[1
]}

JOHANSSON, KA ^{[1
]}

VENSELAAR, JLM ^{[1
]}

DEBROUWER, P ^{[1
]}

HANSSON, U ^{[1
]}

MOUDI, C ^{[1
]}

机构：

[1] SAHLGRENS UNIV HOSP,DEPT RADIAT PHYS,S-41345 GOTHENBURG,SWEDEN

来源：

RADIOTHERAPY AND ONCOLOGY | 1991年 / 22卷 / 04期

关键词：

MAILED DOSIMETRY; QUALITY ASSURANCE; BREAST CANCER TREATMENT;

D O I：

10.1016/0167-8140(91)90163-B

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Mailed dosimetry, using thermoluminescent dosimeters, can play an important role in quality assurance procedures in radio-therapy. In 1989, a pilot study was started with the main aim to show the feasibility of this method for the multicentre EORTC trial 22881 on the conservative management of breast carcinoma. Two anthropomorphic breast phantoms and six patients with breast carcinoma were irradiated according the prescriptions of the protocol. TLD measurements of the entrance and exit dose were performed in 6 MV tangential X-ray beams. It proved to be possible to correlate the dose measured in the entrance and exit points of the beams to the calculated dose closely under the surface. A thickness of at least 5 mm bolus material must be applied over the. dosimeters and a distance of at least 3 cm from the lateral and medial field borders must be maintained in order to reach a clinically acceptable accuracy in the measurements.

引用

页码：280 / 284

页数：5