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Titolo:
THE MAGNITUDE OF TREATMENT FIELD SET-UP PARAMETER CORRECTION IN RADIATION-THERAPY
Autore:
GLUHCHEV G;
Indirizzi:
INST INFORMAT TECHNOL,ACAD G BONCHEV ST,BL 29A,POB 161 SOFIA 1113 BULGARIA
Titolo Testata:
Radiotherapy and oncology
fascicolo: 1, volume: 48, anno: 1998,
pagine: 79 - 82
SICI:
0167-8140(1998)48:1<79:TMOTFS>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
PORTAL IMAGES;
Keywords:
SYSTEMATIC DISPLACEMENT; RANDOM ERROR; DECISION RULE; RADIATION THERAPY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
G. Gluhchev, "THE MAGNITUDE OF TREATMENT FIELD SET-UP PARAMETER CORRECTION IN RADIATION-THERAPY", Radiotherapy and oncology, 48(1), 1998, pp. 79-82

Abstract

To achieve a better correction effect in radiation treatment, a correction (c(alpha)) is suggested which is optimal in the sense of minimalstandard deviation of the residual systematic displacement (Delta(r))obtained after correction. To evaluate the improvement due to c(alpha), the performance of the original Eel's rule [2] was compared to the performance of its modification, where same decision-making thresholdswere used but a correction c(alpha) was applied. For this, 5000 treatment courses were simulated at different standard deviations (sigma(Delta) and sigma(delta)) of the systematic displacement Delta and randomerror delta. The experiments showed improved accuracy by up to 7% in terms of \Delta(r)\ less than or equal to 1.5 mm and also a reduced average number of corrections per patient of about 0.1 corrections. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.

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Documento generato il 12/07/20 alle ore 13:23:20