Equivalent cross-relaxation rate imaging of breast cancer.
J Magn Reson Imaging
; 20(1): 56-65, 2004 Jul.
Article
en En
| MEDLINE
| ID: mdl-15221809
ABSTRACT
PURPOSE:
To determine whether equivalent cross-relaxation rate (ECR) imaging is a feasible method for demonstrating breast cancer. MATERIALS ANDMETHODS:
Fifteen breast cancer patients underwent both ECR imaging, with off-resonance saturation pulses at frequency offsets of 7 and 19 ppm (ECR-7 and ECR-19, respectively) from water resonance, and gadolinium (Gd)-enhanced dynamic magnetic resonance imaging (MRI) of the breast. The mean tumor size was 26.5 mm. The tumor outlines defined by their shape and margin on ECR-7 images were compared with the subtraction images produced by the dynamic study, and the distribution of hyperintensity areas and their shapes on ECR-19 images were assessed. All patients had surgery and pathological findings were compared to ECR images.RESULTS:
The tumor outline of 13/15 (87%) tumors on ECR-7 images was nearly identical to that on subtraction images; ECR-19 images demonstrated the location and degree of fibrosis. The tumor outline of the other two tumors was less clear on ECR-7 images, and internal hyperintensity on ECR-19 images reflected intratumoral fibrotic foci. ECR-7 and -19 imaging findings allowed identification of four distinct tumor types that reflected the tumor growth patterns and their internal structures associated with fibrosis.CONCLUSION:
ECR imaging is a feasible imaging technique for demonstrating breast cancer.
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Colección:
01-internacional
Asunto principal:
Neoplasias de la Mama
/
Imagen por Resonancia Magnética
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Aged
/
Female
/
Humans
/
Middle aged
Idioma:
En
Revista:
J Magn Reson Imaging
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
2004
Tipo del documento:
Article
País de afiliación:
Japón