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Titolo:
WATER ROLLS FOR ELECTRON-IRRADIATION OF THE EAR CANAL
Autore:
MORRISON WH; WONG PF; STARKSCHALL G; GARDEN AS; CHILDRESS C; HOGSTROM KR; PETERS LJ;
Indirizzi:
UNIV TEXAS,MD ANDERSON CANC CTR,DEPT RADIOTHERAPY,BOX 97,1515 HOLCOMBE BLVD HOUSTON TX 77030 UNIV TEXAS,MD ANDERSON CANC CTR,DEPT RADIAT PHYS HOUSTON TX 77030
Titolo Testata:
International journal of radiation oncology, biology, physics
fascicolo: 2, volume: 33, anno: 1995,
pagine: 479 - 483
SICI:
0360-3016(1995)33:2<479:WRFEOT>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Keywords:
ELECTRON BOLUS; ELECTRON DOSIMETRY; EXTERNAL AUDITORY CANAL;
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
W.H. Morrison et al., "WATER ROLLS FOR ELECTRON-IRRADIATION OF THE EAR CANAL", International journal of radiation oncology, biology, physics, 33(2), 1995, pp. 479-483

Abstract

Purpose: To demonstrate that water bolus in the external ear can decrease the dose inhomogeneity caused by auricular surface irregularitieswhen the ear is in an electron-beam field. Methods and Materials: Three-dimensional (3D) dose distributions with and without water bolus inthe external ear were calculated for a representative patient. The electron dose calculations were made using the Hogstrom pencil beam algorithm as implemented in 3D by Starkschall. To demonstrate the use of water bolus in the ear clinically, the case of a patient with squamous carcinoma of the concha who was treated with electrons is presented. Results: Water bolus markedly lessens the dose heterogeneity caused by the surface irregularities of the ear and the air in the external auditory canal. In the test case, the maximum dose was reduced by 25% using this technique. Conclusion: When the ear is in an electron beam field, warm water should be placed in the external auditory canal and concha. This maneuver may reduce the incidence of auricular complications that occur after electron-beam therapy.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 12:34:53