MRI-Guided Intervention for Breast Lesions Using the Freehand Technique in a 3.0-T Closed-Bore MRI Scanner: Feasibility and Initial Results
Korean Journal of Radiology
;
: 171-178, 2013.
Artigo
em Inglês
| WPRIM
| ID: wpr-15372
ABSTRACT
OBJECTIVE:
To report the feasibility of magnetic resonance imaging (MRI)-guided intervention for diagnosing suspicious breast lesions detectable by MRI only, using the freehand technique with a 3.0-T closed-bore MRI scanner. MATERIALS ANDMETHODS:
Five women with 5 consecutive MRI-only breast lesions underwent MRI-guided intervention 3 underwent MRI-guided needle localization and 2, MRI-guided vacuum-assisted biopsy. The interventions were performed in a 3.0-T closed-bore MRI system using a dedicated phased-array breast coil with the patients in the prone position; the freehand technique was used. Technical success and histopathologic outcome were analyzed.RESULTS:
MRI showed that four lesions were masses (mean size, 11.5 mm; range, 7-18 mm); and 1, a nonmass-like enhancement (maximum diameter, 21 mm). The locations of the lesions with respect to the breast with index cancer were as follows different quadrant, same breast - 3 cases; same quadrant, same breast - 1 case; and contralateral breast - 1 case. Histopathologic evaluation of the lesions treated with needle localization disclosed perilobular hemangioma, fibrocystic change, and fibroadenomatous change. The lesions treated with vacuum-assisted biopsy demonstrated a radial scar and atypical apocrine hyperplasia. Follow-up MRI after 2-7 months (mean, 4.6 months) confirmed complete lesion removal in all cases.CONCLUSION:
MRI-guided intervention for breast lesions using the freehand technique with a 3.0-T closed-bore MRI scanner is feasible and accurate for diagnosing MRI-only lesions.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Vácuo
/
Biópsia por Agulha
/
Neoplasias da Mama
/
Imageamento por Ressonância Magnética
/
Estudos de Viabilidade
/
Estudos Retrospectivos
/
Meios de Contraste
/
Gadolínio DTPA
/
Diagnóstico Diferencial
/
Imagem por Ressonância Magnética Intervencionista
Tipo de estudo:
Estudo diagnóstico
/
Estudo observacional
Limite:
Adulto
/
Feminino
/
Humanos
Idioma:
Inglês
Revista:
Korean Journal of Radiology
Ano de publicação:
2013
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS