The value of endoscopic ultrasonography in defining longitudinal gross target volumes for esophageal squamous carcinoma.
Surg Laparosc Endosc Percutan Tech
; 22(5): 424-8, 2012 Oct.
Article
em En
| MEDLINE
| ID: mdl-23047386
ABSTRACT
BACKGROUND AND PURPOSE:
To investigate the differences between endoscopic ultrasonography (EUS)-based longitudinal gross target volumes (GTV) (GTV(EUS)) and computed tomography (CT)-based longitudinal GTV (GTV(CT)) in diagnosing esophageal squamous carcinoma.METHODS:
Thirty-six patients underwent EUS to define the superior and inferior extents of the tumor by using hemoclips. CT-planning scan was performed with the patient in the supine position during the treatment. GTV(CT) and GTV(EUS) were contoured respectively. The respective lengths (L(CT) and L(EUS)) and spatial locations of longitudinal GTV(CT) and longitudinal GTV(EUS) were compared.RESULTS:
The mean LCT was 7.8 ± 3.2 cm and the mean L(EUS) was 7.4 ± 2.7 cm. No statistical difference was found between L(CT) and L(EUS) (P > 0.05) with a correlation coefficient of 0.61 (P<0.05). The mean conformal index was 0.79 ± 0.18 with spatial variations found in 71% (24/34) of the patients.CONCLUSIONS:
EUS can provide additional information to CT in defining longitudinal GTV in thoracic esophageal squamous cell carcinoma, especially superficial and submucosal carcinomas, which may contribute to the development of better individual treatment regimens.
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
/
Tipos_de_cancer
/
Esofago
Base de dados:
MEDLINE
Assunto principal:
Planejamento da Radioterapia Assistida por Computador
/
Neoplasias Esofágicas
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Carcinoma de Células Escamosas
/
Endossonografia
Tipo de estudo:
Observational_studies
Limite:
Adult
/
Aged
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Aged80
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Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Surg Laparosc Endosc Percutan Tech
Assunto da revista:
DIAGNOSTICO POR IMAGEM
/
GASTROENTEROLOGIA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
China