经直肠超声联合超声造影观察直肠肿瘤血流灌注  

Transrectal Ultrasonography Combined with Contrast-enhanced Ultrasound in Observation of Rectal Neoplasms Blood Flow

作　　者：王晓荣[1] 杨磊[1] 地力木拉提.阿不来提 宋涛[1] 

机构地区：[1]新疆医科大学第一附属医院超声诊断科,乌鲁木齐市830011

出　　处：《中国超声医学杂志》2017年第3期259-263,共5页Chinese Journal of Ultrasound in Medicine

摘　　要：目的较全面了解直肠肿瘤血流灌注特征,期望为超声鉴别T1期直肠肿瘤良恶性提供较有价值的方法。方法对108例直肠良恶性肿瘤患者行经直肠超声检查,根据病理分为T1期(良性11例,恶性6例),T2期恶性34例,T3期恶性39例,T4期恶性18例。比较良恶性直肠肿瘤的彩色多普勒血流特征(肿瘤主干滋养血管数目、PSV值及RI值)及超声造影特征(造影剂进入方式、肿瘤增强强度、肿瘤增强程度、造影剂退出方式)。结果 T1期直肠良性肿瘤与T1~T4期直肠恶性肿瘤的主干滋养血管数目差异有统计学意义(P<0.05),主干滋养血管的RI值在T1期直肠良恶性肿瘤间、T1期直肠良性肿瘤与T1~T4期恶性肿瘤的RI值差异均有统计学意义(P<0.05);T1期直肠良、恶性肿瘤在造影剂进入方式的差异有统计学意义(P<0.05),T1期直肠良性肿瘤与T1~T4期直肠恶性肿瘤在造影剂进入方式及增强程度的差异均有统计学意义(P<0.05)。结论经直肠彩色多普勒超声与超声造影较全面显示了直肠良恶性肿瘤血流灌注的特征和差异,并为T1期直肠肿瘤良恶性的鉴别诊断提供较有价值的信息。Objective To explore blood flow characteristics of rectal neoplasms and to provide valuable information for differential diagnosis of Tl-stage rectal neoplasms. Methods The 108 rectal neoplasms cases were conducted with color doppler transrectal ultrasonography（TRUS） and contrast-enhanced ultrasound（CEUS）. These rectal neo- plasms were clarified by the final pathological stage： Tl-stage （benign 11 cases, malignant 6 cases）, T2-stage malig- nant 34 cases, T3-stage malignant 39 cases, T4-stage malignant 18 cases. The color doppler characteristics （the num- bers, PSV and RI of the main nourishing blood vessel in tumor ） and the CEUS characteristics （the entering mode of contrast, the enhanced intensity, the enhanced extent, the exiting mode of contrast） of malignant and benign rectal ne- oplasms were compared. Results The difference of numbers of the main nourishing blood vessel between T1 benign and TI--T4 malignant rectal neoplasms had statistical significance（P〈0.05）. The differences of RI of the main nour- ishing blood vessel within T1 benign and malignant rectal neoplasms, T1 benign and T1- T4 malignant rectal neo- plasm both had statistical significance（P%0.05） ~ The difference of entering mode of contrast between T1 benign and malignant rectal neoplasms had statistical significance（P%0.05）. The differences of entering mode of contrast and the enhanced extent within T1 benign and malignant rectal neoplasms, T1 benign and T1--T4 malignant rectal neoplasms both had statistical significance（P〈0.05）. Conclusions The sonographic characteristics and differences of blood vessels in benign and malignant rectal neoplasm can be totally observed by TRUS and CEUS, and can offer valuable diagnostic information to discriminate T1 benign and malignant rectal neoplasm.

关 键 词：经直肠超声 彩色多普勒 超声造影 直肠肿瘤 

分 类 号：R445.1[医药卫生—影像医学与核医学] R735.37[医药卫生—诊断学]