超声造影在肾细胞癌亚型鉴别诊断中的价值

目的探讨超声造影在肾细胞癌亚型鉴别诊断中的应用价值。方法 2004年6月至2010年2月常规超声和超声造影检查343例肾细胞癌患者346个病灶,均经手术及病理证实。常规超声观察肿瘤的大小、回声、边界、有无彩色血流信号、血管位置等。超声造影观察病灶的增强方式和增强时相,包括起始时间、达峰时间、消退时间及病灶的增强表现。结果经手术和病理证实304个病灶为透明细胞肾癌,23个为乳头状肾癌,19个为嫌色细胞肾癌。不同亚型肾细胞癌常规超声表现没有明显差异。不同亚型肾细胞癌的增强时相差异无统计学意义(P>0.05)。透明细胞肾癌表现为皮质期同步增强、达峰值时呈高回声和等回声、实质期快速减退为主,而乳头状肾癌和嫌色细胞肾癌皮质期表现为同步增强和缓慢增强、达峰值时呈低回声和等回声、实质期以快速减退为主。乳头状肾癌与透明细胞肾癌比较,两组病灶皮质期、达峰值回声和实质期的表现差异有统计学意义(P均=0.000);嫌色细胞肾癌与透明细胞肾癌比较,两组病灶皮质期、达峰值回声和实质期的表现差异有统计学意义(P=0.000,P=0.000,P=0.001)。结论超声造影有助于肾细胞癌亚型的鉴别。

The value of contrast-enhanced ultrasonography in subtypes differentiation of renal cell carcinoma

Objective To investigate the value of contrast-enhanced ultrasonography (CEUS) in subtypes differentiation of renal cell carcinoma (RCC).Methods Three hundred and forty-six RCCs were scanned by conventional ultrasonography(US) and CEUS from Jun.2004 to Feb.2010.All tumors were sequentially diagnosed by operation and pathological tests.The size,inner echoes,boundary,blood signal of tumors and its location were observed by conventional US.The modality and phase of enhancement,including the arrival time,the pe...