Article

Endometrial carcinoma: merit of magnetic resonance in pre-surgical staging

Radiología 01/2003; 45(03):115.

ABSTRACT 115 Objetivo: Evaluar la capacidad de la RM para valorar la infiltración profunda del miometrio y cérvix en el carcinoma de endometrio. Pacientes y métodos: Se estudió una serie de 30 pacientes consecu-tivas diagnosticadas de cáncer de endometrio que fueron evaluadas pre-quirúrgicamente mediante resonancia magnética (RM). Se utilizaron se-cuencias TSE T2 con saturación de la grasa y secuencia dinámica FFE tras la administración de gadolinio. Se realizó una correlación con la estadificación posquirúrgica histológica. Se halló la sensibilidad (S), es-pecificidad (E), valor predictivo positivo (VPP) y valor predictivo ne-gativo (VPN) para la infiltración profunda miometrial y la invasión del cérvix. Se analizaron los casos de sobrestimación e infraestimación. Resultados: Para el miometrio y cérvix se obtuvo una S del 67% y 63%, E del 89% y 91%, VPP del 80% y 71% y VPN del 80% y 87%, respectivamente. Se sobrevaloraron dos casos para la infiltración miometrial y dos para el cérvix e infravaloraron cuatro y tres casos, respectivamente. Conclusión: La estadificación por RM del carcinoma de endometrio es una técnica de alta fiabilidad diagnóstica pero presenta sus limitaciones. Palabras clave: Tumores uterinos. Estadificación. Resonancia magné-tica. Miometrio. Cérvix. Endometrial carcinoma: merit of magnetic resonance in pre-surgical staging Aim: To evaluate MR capacity in assessing deep myometrial and cervical infiltrations in cases of endometrial carcinoma. Material and methods: A series of 30 consecutively diagnosed en-dometrial cancer patients was pre-surgically evaluated by means of magnetic resonance (MR). TSE-T2 sequences with fat saturation and dynamic FFE sequence were used after gadolinium administration. A correlation with post-surgical histological staging was made. There were then determined sensitivity (S), specificity (SP), positive predicti-ve value (PPV) and negative predictive value (NPV) for the deep myo-metrial infiltration and cervical invasion. Cases of overestimation and underestimation were analyzed. Results: Values obtained for myometrium and cervix were, respec-tively, S of 67% and 63%, SP of 89% and 91%, PPV of 80% and 71% and NPV of 80% and 87%. Two cases each were overvalued for myo-metrial infiltration and cervix; four cases and 3 cases, respectively, we-re undervalued.

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