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Titolo:
A COMPARATIVE-STUDY OF METHODS FOR THE REGISTRATION OF PAIRS OF RADIATION-FIELDS
Autore:
LESZCZYNSKI K; LOOSE S; DUNSCOMBE P;
Indirizzi:
NE ONTARIO REG CANC CTR,DEPT MED PHYS,41 RAMSEY LAKE RD SUDBURY P3E 5J1 ON CANADA
Titolo Testata:
Physics in medicine and biology
fascicolo: 10, volume: 38, anno: 1993,
pagine: 1493 - 1502
SICI:
0031-9155(1993)38:10<1493:ACOMFT>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIGITAL PORTAL IMAGES; EDGE-DETECTION; VERIFICATION; RADIOTHERAPY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
16
Recensione:
Indirizzi per estratti:
Citazione:
K. Leszczynski et al., "A COMPARATIVE-STUDY OF METHODS FOR THE REGISTRATION OF PAIRS OF RADIATION-FIELDS", Physics in medicine and biology, 38(10), 1993, pp. 1493-1502

Abstract

Accurate techniques for the registration of pairs of radiation fields, usually derived from simulator and portal films, are required if on-line portal imaging is to be used with maximum benefit to the patient. We report a quantitative comparison of the performance of three groups of registration techniques applied to field pairs derived from fiftysimulator and 135 portal images acquired during the routine radiotherapy of seventeen patients. Using the parameters of coverage and overcoverage we conclude that a method based on the combination of geometricmoments up to order six outperforms both central plus individual Zernike moments up to order four and a generalized field-match-point method.

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Documento generato il 04/07/20 alle ore 21:13:32