扩散加权成像联合常规磁共振征象对睾丸肿瘤的诊断价值

Diagnostic value of diffusion-weighted imaging and conventional magnetic resonance imaging in testicular tumor

磁共振成像表观扩散系数(ADC)≤0.90×10^(-3) mm^(2)/s及T2加权像(T2WI)低信号、瘤内分隔及瘤周侵犯征象四组相联合,对睾丸恶性肿瘤的诊断效能最高。ADC值及囊变/坏死为鉴别非精原细胞瘤与精原细胞瘤、淋巴瘤的独立影响因素;ADC值及瘤内分隔为鉴别精原细胞瘤及淋巴瘤的独立影响因素。

Apparent diffusion coefficient(ADC)of magnetic resonance imaging≤0.90×10^(-3) mm^(2)/s and T2-hypointensity,intratuminal septa,and peritumoral infiltration could achieve best diagnostic efficiency.ADC values and cyst or necrosis were independent predictors for the differential diagnosis of nonseminomatous germ cell tumor versus seminoma and nonseminomatous germ cell tumor versus lymphoma.ADC value and intratuminal septa were independent predictors for the differential of seminoma versus lymphoma.