Pelvic imaging using a T1W fat-suppressed three-dimensional dual echo Dixon technique at 3T.
J Magn Reson Imaging
; 28(1): 121-7, 2008 Jul.
Article
en En
| MEDLINE
| ID: mdl-18581401
ABSTRACT
PURPOSE:
To compare two T1-weighted (T1W) fat-suppressed sequences for 3D breath-hold pre- and postcontrast fat-suppressed T1W imaging of the female pelvis at 3T. MATERIALS ANDMETHODS:
Pelvic MRI scans of 16 female patients were retrospectively identified who were scanned with two 3D breath-hold sequences 1) a fast spoiled gradient echo sequence with spectral inversion at lipids (SPECIAL) (called 3D FSPGR), and 2) a dual-echo two-point Dixon (DE Dixon) sequence. Contrast between soft tissue and fat, soft tissue and fluid, and fat and fluid was measured on pre- and postcontrast images. Additionally, two readers subjectively scored the images for degree and homogeneity of fat suppression plus presence and severity of artifacts.RESULTS:
Contrast between muscle and myometrium to fat was improved with the Dixon technique (0.61 vs. 0.09 and 0.7 vs. 0.3, respectively, P < 0.001). Both readers agreed that fat suppression was stronger with the Dixon sequence (P < 0.001 and P = 0.06). Artifacts were equivalent (P = 0.53 and 0.65).CONCLUSION:
The 3D DE Dixon sequence achieved stronger fat suppression in the female pelvis when compared to a 3D FSPGR sequence with SPECIAL.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Pelvis
/
Imagen por Resonancia Magnética
Tipo de estudio:
Observational_studies
/
Prognostic_studies
Límite:
Female
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Humans
Idioma:
En
Revista:
J Magn Reson Imaging
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
2008
Tipo del documento:
Article
País de afiliación:
Estados Unidos