摘要
目的应用CDFI和CDE观测乳腺肿块的血流特点,评价其在鉴别乳腺良恶性肿块方面的意义。方法应用CDFI和CDE检测145个乳腺肿块,并与病理结果对照。按肿块大小分为Ⅰ组(直径>2.0cm)和Ⅱ组(直径≤2.0cm)。观察肿块二维和彩色血流特点并用频谱3个参数进行定量分析。结果①CDFI显示:恶性肿块血流显示率明显高于良性;Ⅱ组乳腺良、恶性肿块SPV、PI、RI均有显著差异,Ⅰ组则不明显。②CDE显示:血流检出率恶性高于良性,良性肿块以0'型或Ⅰ'型为主,多表现为环绕、点线状血流;恶性肿块以Ⅲ'型或Ⅳ'型为主,表现为穿入、转折和增粗分叉。③联合应用CDFI与CDE对两组肿块诊断敏感性、特异性和准确性分别为95.24%、86.67%、91.67%和93.94%、85.00%、89.04%,明显高于单独应用CDFI或CDE。结论乳腺癌的CDFI和CDE血流检出率均高于良性;SPV、PI、RI可作为小乳癌的鉴别诊断指标之一;联合应用CDFI和CDE能够明显提高乳腺癌的诊断敏感性、特异性和准确性。
Objective To assess the value of color Doppler flow imaging （CDFI） and color Doppler energy （CDE） in the diagnosis of breast cancer. Methods 145 breast masses were detected using CDFI and CDE, and confirmed by pathology. They were divided into two groups according their largest diameter, group Ⅰ （diameter〉2.0 cm） and group Ⅱ （diameter≤2.0 cm）. The grayscale and flow features of the masses were observed and the parameters of pulse Doppler were analyzed. Results ①CDFI results： The flow signals of malignant lesions were richer than that of benign lesions. There was significant difference in SPV, PI and RI between benign and malignant lesions in group Ⅱ , but not in group Ⅰ.②CDE results： The detection rate of malignant lesions were much higher than that of benign lesions. The majority benign lesions represented circuitous or dot-linear flow pattern which was named grade 0＇-Ⅰ＇＂, otherwise appeared penetrative, tortuous, forked and netlike pattern, namely grade Ⅲ＇-Ⅳ＇. ③The sensitivity, specificity and accuracy of combination CDFI with CDE were 95. 24%, 86. 67%, 91. 67% and 93. 94%, 85. 00%, 89. 04% in the two groups, respectively. They were much higher than by using CDFI or CDE alone. Conclusion The color flow of breast cancer is more richer than that of benign lesion. SPV, PI and RI can become one of the parameters in diagnosing small breast cancer. Combination of CDFI with CDE can improve the sensitivity, specificity and accuracy rate of breast cancer.
出处
《中国医学影像技术》
CSCD
北大核心
2006年第6期867-869,共3页
Chinese Journal of Medical Imaging Technology
