摘要
目的应用经直肠超声造影技术观察直肠间质瘤,探讨直肠间质瘤的超声特征及谐波超声造影技术在直肠间质瘤诊断中的应用价值。方法采用经直肠彩超观察直肠间质瘤病变,再以反向脉冲谐波显像技术对病变行超声造影检查,分析直肠间质瘤的造影灌注特征。结果本组9例直肠间质瘤,其中低度危险程度间质瘤3例,中度危险程度间质瘤1例,高度危险程度间质瘤5例。直肠间质瘤彩色多普勒超声表现为直肠肌层内向腔内或腔外突起的圆形或椭圆形低回声团块,较大肿瘤内部回声多杂乱不均,可见片状无回声区及散在钙化灶,边界较清晰,肿块不直接沿肠道壁浸润蔓延,以外生性膨胀性生长为主,邻近肠壁无明显增厚征象,均未探及肠周淋巴结转移。超声造影表现为快速显著增强,对于较大肿瘤,病灶呈不均匀增强,病灶中心坏死区始终无增强。结论经直肠彩超结合超声造影技术能够很好的显示直肠间质瘤的形态范围及微血管灌注情况,对于直肠间质瘤术前明确诊断及病变侵犯肠壁层次分析有指导意义。
Objective To investigate the characteristics in the evaluation of rectal stromal tumors using transrectal ultrasound combining contrast-enhanced ultrasound. Methods Rectal stromal tumor were studied using transrectal ultrasound combining contrast-enhanced ultrasound technique.Then the characteristics of perfusion of all lesions were analyzed. Results Total 9 cases of rectal stromal tumors were investigated in our study, which including 3 low-grade risk tumors, 1 moderate-grade risk tumor and 5 high-grade risk tumors.Rectal stromal tumors appeared as hypoechoic mass with circular shapes such as round or ellipic,protuberant outside or inside of the rectal cavity, anechoic area and scattered calciifcations were detected in larger ones. The lymphnode metastasis was not found near rectums.Relatively nonhomogeneous enhancement were detected in larger tumors, without enhancement in the necrosis and liquefaction. Conclusions Transrectal ultrasound combining contrast-enhanced ultrasound technique can give a good display of morphology and microvascular perfusion of rectal stromal tumors, which will be useful for preoperative diagnosis and analysis of wall invasion with guiding signiifcance.
出处
《中国医药指南》
2015年第2期7-8,共2页
Guide of China Medicine
关键词
间质瘤
直肠
超声造影
腔内超声检查
Gastrointestinal stromal tumor
Rectum
Contrast-enhanced ultrasound
Transrectal ultrasound
