超声造影、CT、MRI在卵巢肿瘤临床应用比较

发布时间：2018-01-14 10:23

本文关键词：超声造影、CT、MRI在卵巢肿瘤临床应用比较　出处：《中国CT和MRI杂志》2016年10期 　论文类型：期刊论文

【摘要】：目的探讨并对比超声造影、CT、MRI在卵巢肿瘤诊断中的应用价值。方法回顾性分析63例经临床病理确诊的卵巢肿瘤患者的超声造影、CT及MRI影像资料,并与病理学结果对比。结果 MRI诊断符合率、敏感性、特异性略高于超声造影检查,但组间比较无差异(P0.05);CT诊断准确率低于MRI、CT(P0.05)。超声造影上,良性肿瘤实性成分为主表现为从瘤体周边向内部灌注,囊性成分为主可见囊壁呈环状不均匀增厚。恶性肿瘤实性成分为主组织有不同程度的增强,多数肿瘤体内部向周边病灶强化;囊性成分为主组织囊壁及囊内分隔明显增强。CT表现上,良性肿瘤以囊性多见,增强扫描无明显强化;恶性肿瘤有"分叶征",或多房性;以实性成分为主增强扫描后呈均匀或不均匀强化,囊性成分肿块增强扫描后无明显强化。MRI表现上,良性肿瘤囊性成分为主组织信号复杂,增强扫描囊壁及间隔有轻、重度强化;实性成分组织为主可见MRI信号不规则,增强扫描后实性部分为延迟不均匀强化。恶性肿瘤以囊实性病灶或实性病灶为主,囊实性部分为T1WI低信号,T2WI高信号,囊壁多呈结节或乳头状从囊内突出囊外;实性部分T1WI等或低或混杂信号,T2WI高信号,增强扫描中重度明显强化。实性肿块信号不均匀,增强扫描后信号不均,部分见腹水、淋巴结转移或盆腔受侵。结论超声造影是鉴别诊断良恶性卵巢肿瘤的首选影像学方式之一。
[Abstract]:Objective to investigate and compare the value of CT MRI in the diagnosis of ovarian tumors. Methods 63 cases of ovarian tumors confirmed by clinical pathology were analyzed retrospectively. Results the diagnostic accuracy, sensitivity and specificity of MRI were slightly higher than those of contrast-enhanced ultrasonography, but there was no difference between the two groups (P 0.05). The diagnostic accuracy of CT was lower than that of MRI CT (P 0.05). The solid components of benign tumors were mainly infused from the periphery of the tumor to the interior on contrast-enhanced ultrasonography. The cystic components were mainly seen as annular uneven thickening of the cystic wall. The solid components of malignant tumors were enhanced to varying degrees, and most of the tumors were enhanced to the peripheral lesions in the body and part of the tumor. The cystic components were mainly in the cystic wall and the cystic septum. Ct findings showed that the benign tumors were mostly cystic, but the enhancement scan was not obvious. Malignant tumor has "lobulation sign", or multilocular sex; The enhancement was homogeneous or uneven after contrast enhancement with solid components, but no obvious enhancement was found in cystic masses. The signal intensity of benign tumor cystic components was complex. The wall and septum of cysts were enhanced with light and severe enhancement. Irregular MRI signal was observed in solid component tissue, delayed heterogeneous enhancement was found in the solid part after contrast enhancement, and hypointensity was found in the cystic or solid lesions and T 1WI in malignant tumors. T2WI showed high signal intensity and most of the cystic walls were nodular or papillary protruding from the outside of the capsule. The solid part of T _ 1WI had high signal intensity on the same or low or mixed signal intensity on T _ 2WI. The signal intensity of solid mass was not even and the signal intensity was uneven after enhancement. Ascites were found in some cases. Conclusions Contrast-enhanced ultrasonography is one of the preferred imaging methods for differential diagnosis of benign and malignant ovarian tumors.
【作者单位】：内蒙古医科大学附属医院超声科;
【基金】：中华国际医学交流基金会先声抗肿瘤治疗专项科研基金(CIMF-F-H001-313
【分类号】：R737.31;R445;R730.44
【正文快照】： 5131.2016.10.030卵巢肿瘤是女性常见的生殖器官肿瘤之一,卵巢肿瘤组织来源复杂、种类较多,其中卵巢恶性肿瘤位居妇科恶性肿瘤的第三位。研究报道,FIGO I~Ⅱa期卵巢术后5年生存率较高[1]。因卵巢位置较深,且发病初期无特异性症状,部分卵巢癌患者入院时已处于疾病中晚期,5年生

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