MRI assessment of the bony pelvis may help predict resectability of rectal cancer.
Colorectal Dis
; 7(3): 232-40, 2005 May.
Article
em En
| MEDLINE
| ID: mdl-15859960
ABSTRACT
OBJECTIVE:
The outcome after surgical treatment of rectal cancer may be influenced by the technical difficulty of the operation, which is thought to be affected by pelvic size. The aim of this study was to examine the association between bony pelvic dimensions and CRM involvement. PATIENTS ANDMETHODS:
All patients with primary rectal cancer between December 1999 and January 2002 were studied. Staging was performed by pelvic MRI. Nine pelvic dimensions were measured from the MR images on a workstation. Pathology reports were obtained for all patients and the mesorectal specimen was examined. Technical difficulty was assessed by circumferential resection margin (CRM) involvement.RESULTS:
Of 126 patients with primary rectal cancer, 88 had staging MRI and rectal excision; there were significant differences between the sexes in all 9 pelvic dimensions (P < 0.05). In females, the interspinous diameter was significantly shorter in patients with CRM involvement compared with patients with a negative CRM. In female patients predicted to have a negative CRM, the anteroposterior diameter of the inlet, the anteroposterior diameter of the midplane and the transverse diameter of the midplane (interspinous distance) were significantly shorter in patients who actually had a positive CRM compared with those in whom the CRM was negative. In male patients, there was no correlation between pelvic dimensions and CRM status.CONCLUSIONS:
In certain patients with rectal cancer, CRM positivity may be predicted from pre-operative MRI pelvic measurements. This may influence the choice of adjuvant therapy.
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Temas:
ECOS
/
Aspectos_gerais
Bases de dados:
MEDLINE
Assunto principal:
Ossos Pélvicos
/
Pelvimetria
/
Neoplasias Retais
/
Cuidados Pré-Operatórios
/
Imageamento por Ressonância Magnética
/
Proctocolectomia Restauradora
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Colorectal Dis
Assunto da revista:
GASTROENTEROLOGIA
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Reino Unido