CAJ | 학술논문

目的总结和探讨肾细胞癌的超声造影特征.方法 70例肾细胞癌共72个病灶接受了常规超声和超声造影检查,分析病灶的常规超声及超声造影表现特征.超声造影使用造影剂声诺维和对比脉冲序列成像技术.结果常规超声显示低、等、高回声的病灶分别为44.4%(32/72)、25.0%(18/72)和30.6%(22/72).病灶彩色血流信号显示率为38.9%(28/72),动脉峰值流速(43.7±16.8)cm/s(24.8～95 cm/s),阻力指数0.63±0.11(0.53～0.80).超声造影显示皮质期63个(87.5%)病灶表现为等或高增强,9个(12.5%)为低增强.63个等或高增强病灶中48个(76.2%)实质期及晚期减退至低增强,15个(23.8%)仍保持等或高增强.9个皮质期表现为低增强病灶,晚期仍为低增强.75.0%(54/72)病灶不均匀增强,内可见无增强区,87.5%(63/72)的病灶可显示代表假包膜的高增强环.结论超声造影病灶皮质期不均匀等或高增强,实质期或晚期呈低增强,以及假包膜增强是肾细胞癌的重要表现,能将有助于肾细胞癌的诊断及鉴别诊断.
목적 총결화탐토신세포암적초성조영특정.방법 70례신세포암공72개병조접수료상규초성화초성조영검사,분석병조적상규초성급초성조영표현특정.초성조영사용조영제성낙유화대비맥충서렬성상기술.결과 상규초성현시저、등、고회성적병조분별위44.4%(32/72)、25.0%(18/72)화30.6%(22/72).병조채색혈류신호현시솔위38.9%(28/72),동맥봉치류속(43.7±16.8)cm/s(24.8～95 cm/s),조력지수0.63±0.11(0.53～0.80).초성조영현시피질기63개(87.5%)병조표현위등혹고증강,9개(12.5%)위저증강.63개등혹고증강병조중48개(76.2%)실질기급만기감퇴지저증강,15개(23.8%)잉보지등혹고증강.9개피질기표현위저증강병조,만기잉위저증강.75.0%(54/72)병조불균균증강,내가견무증강구,87.5%(63/72)적병조가현시대표가포막적고증강배.결론 초성조영병조피질기불균균등혹고증강,실질기혹만기정저증강,이급가포막증강시신세포암적중요표현,능장유조우신세포암적진단급감별진단.
Objective To conclude the characterization of renal cellular carcinoma(RCC)with contrast enhanced ultrasound.Methods Seventy patients(seventy-two nodules)with RCC,which were confirmed by operation and biopsy underwent conventional ultrasound and contrast-enhanced ultrasound(CEUS).Microbubble agents SonoVue and contrast pulse sequence(CPS)were used.The conventional uItrasonographic characterization and the enhancement patterns of lesions were analyzed.Results On baseline sonography,the numbers of lesions that showed hypoechogenicity,isoechogenicity,and hyperechogenicity were 44.4%(32/72),25.0%(18/72)and 30.6%(22/72),respectively.Only 28 lesions(38.9%)showed flow signals on color Doppler sonography,the mean maximum velocity of which WSS(43.7±16.8)cm/s(range,24.8-95 cm/s),and the mean resistance index was 0.635±0.11(range.0.52-0.83).Sixty-three(87.5%)lesions were hyper-vascular in cortical phase.Among them forty-eight(76.2%)lesions were hypo-enhanced,and fifteen(23.8%)lesions were still hyper-vascular in late phase.The remaining nine hypervascular nodules in cortical phase were still hyper-enhancing in late phase.Fifty-four(75.0%)lesions were inhomogeneous enhancement.and pseudocapsule was observed in sixty-three(87.5%)RCC lesions.Conclusions The enhancement patterns of RCC are characteristic,and CEUS may be helpful in differential diagnosis of focal renal lesions.