目的探讨NSM-S15超导磁共振 成像系统在诊断附件肿块中的诊断价 值。方法 选择经手术病理证实42例66个 附件肿块，分别采用MRI与B超检查，以 手术病理检查结果为金标准，比较MRI 与B超在诊断效能。结果 66枚附件肿块 中，良性肿块48枚，恶性肿块18枚；良 性肿块中多表现为T1WI/T2WI高信号， 恶性肿块T1WI多表现为低/等高信号； MRI诊断灵敏度、特异度、准确度、阳 性预测值、阴性预测值均明显高于B超 （94.44% vs 72.22, 95.83% vs 89.58%, 95.45% vs 84.85%, 89.47% vs 72.22%, 97.87% vs 89.58%），差异有统计学意义 (χ2 =2.758-7.775,P<0.05)。结论 NSMS15超导磁共振成像系统在诊断附件肿块 中具有明显的比较优势，其诊断价值有待 于进一步的开发。

Objective To study the diagnostic value of NSM-S15 superconducting magnetic resonance imaging system in the diagnosis of adnexal masses. Methods A total of 42 cases (66 appendix masses) accepted MRI and ultrasonography examination. And the surgical pathological result was the gold standard. MRI and ultrasound diagnosis effectiveness was compared. Results A total of 66 appendix masses, 48 were benign, and 18 were malignant, benign masses showed high signal on T1W1/T2W1, malignant masses showed low/high signal on T1WI; MRI diagnosis sensitivity, specific, accuracy, positive predictive value, negative predictive value were significantly higher than that B ultrasonic (94.44% vs 72.22, 95.83% vs 89.58%, 95.45% vs 84.85%, 89.47% vs 72.22%, 97.87% vs 89.58%), the difference was statistically significant (χ2 =2.758-2.758, P<0.05). Conclusion The NSM-S15 superconducting magnetic resonance imaging system has obvious comparative advantage in the diagnosis of adnexal masses,and the diagnostic value should be further developed.