Comparison of enhanced magnetic resonance and diffusion-weighted imaging for detection of hepatic metastases / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
;
(6): 621-624, 2012.
Artículo
en Chino
| WPRIM
| ID: wpr-284320
ABSTRACT
<p><b>OBJECTIVE</b>To compare the roles of Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI) using the liver acquisition with volume acceleration(LAVA) sequence and diffusion-weighted imaging(DWI) in the detection of hepatic metastases sized ≤3 cm.</p><p><b>METHODS</b>We retrospectively analyzed the MRI data of 16 patients with hepatic metastases. All the sequences used included T1WI, T2WI,3D-LAVA, and DWI (b value=500 s/mm(2)). All patients were divided into two groups based on the sequences group A (T1WI, T2WI, and 3D-LAVA enhanced MR) and group B(T1WI,T2WI and DWI). The hepatic metastases were evaluated by analyzing the receiver operating characteristic (ROC) curves.</p><p><b>RESULTS</b>A total of 39 hepatic metastatic lesions were identified. The sensitivity, specificity, Youden index and the area under the ROC curve (AUC) were 97.4%, 88.2%, 0.856, and 0.944 in group A and 82.1%, 91.2%, 0.733, and 0.834 in group B. The ROC curves (p=0.040) and Youden index(p=0.043) in group A were significantly larger than in group B.</p><p><b>CONCLUSION</b>Gadolinium-EOB-DTPA-enhanced MRI has higher accuracy than DWI in the detection of small metastases.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Imagen por Resonancia Magnética
/
Estudios Retrospectivos
/
Estudios de Seguimiento
/
Imagen de Difusión por Resonancia Magnética
/
Diagnóstico
/
Neoplasias Hepáticas
/
Métodos
Tipo de estudio:
Estudio diagnóstico
/
Estudio observacional
/
Estudio pronóstico
Límite:
Adulto
/
Anciano
/
Aged80
/
Femenino
/
Humanos
/
Masculino
Idioma:
Chino
Revista:
Acta Academiae Medicinae Sinicae
Año:
2012
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS