PHANTOM CHARACTERIZATION OF APPLICATORS BY LIQUID-CRYSTAL-PLATE DOSIMETRY

被引：10
作者：
ANDREUCCETTI, D
BINI, M
IGNESTI, A
OLMI, R
VANNI, R
机构：
[1] IROE-CNR (National Research Council), Florence
来源：
INTERNATIONAL JOURNAL OF HYPERTHERMIA | 1991年 / 7卷 / 01期
关键词：
QUALITY ASSURANCE; DOSIMETRY; POLYACRYLAMIDE PHANTOM;
D O I：
10.3109/02656739109004987
中图分类号：
R73 [肿瘤学];
学科分类号：
100214 ;
摘要：
A method for the determination of the SAR distribution produced by an electromagnetic applicator for localized hyperthermia is described. The procedure for SAR evaluation consists of recording the time evolution of the temperature inside a polyacrylamide phantom by means of thermochromic liquid crystal sheets inserted in it. The technique allows a complete characterization of applicators in a very broad frequency range, using power levels of the order of those needed in real treatments. Criteria for the minimum phantom size and the maximum time duration of the characterization procedure are indicated, which allow a reliable determination of the effective field size and penetration depth of the applicator.
引用
收藏
页码：175 / 183
页数：9
相关论文
共 7 条
[1]   USE OF POLYACRYLAMIDE AS A TISSUE-EQUIVALENT MATERIAL IN THE MICROWAVE RANGE [J].
ANDREUCCETTI, D ;
BINI, M ;
IGNESTI, A ;
OLMI, R ;
RUBINO, N ;
VANNI, R .
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1988, 35 (04) :275-277
[2]  
ANDREUCCETTI D, 1989, 10TH C ESHO
[3]  
ANDREUCCETTI D, 1988, PHYSICA MED, V4, P129
[4]   THE POLYACRYLAMIDE AS A PHANTOM MATERIAL FOR ELECTROMAGNETIC HYPERTHERMIA STUDIES [J].
BINI, MG ;
IGNESTI, A ;
MILLANTA, L ;
OLMI, R ;
RUBINO, N ;
VANNI, R .
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1984, 31 (03) :317-322
[5]  
Carslaw H. S., 1959, CONDUCTION HEAT SOLI
[6]   QUALITY ASSURANCE GUIDELINES FOR ESHO PROTOCOLS [J].
HAND, JW ;
LAGENDIJK, JJW ;
ANDERSEN, JB ;
BOLOMEY, JC .
INTERNATIONAL JOURNAL OF HYPERTHERMIA, 1989, 5 (04) :421-428
[7]  
Tikhonov A.N., 1977, SOLUTIONS ILL POSED
1