摘要
目的比较弹性应变率比值法以及Itoh评分法、改良5分法对乳腺良恶性肿瘤的诊断价值。方法对手术病理证实的269例患者共377个病灶（良性278个，恶性99个）进行了超声弹性成像检查，获得弹性成像图后，以Itoh评分法、改良5分法分别对病灶进行评分；测量病灶与周围组织的弹性应变率比值，以3．08为界点判断病灶良恶性。以病理诊断为金标准，构建受试者应用曲线，比较3种方法对乳腺肿物的诊断效率。结果构建R0c曲线后，3种方法的曲线下面积（AUC）分别为：比值法0．965，改良5分法0．951，Itoh5分法0．907。比值法与改良5分法对乳腺肿物的诊断价值相似（P≥0．05），优于Itoh5分法（P=0．003）。对于改良5分法评分为3分和4分的病灶，比值法的准确性要高于改良评分法（P=0．021）。结论弹性应变率比值测量为弹性成像检查提供了更为客观、有价值的诊断标准。
Objective To compare the diagnostic value of strain ratio measure method and Itoh scoring system, improved 5 scoring system for differentiation breast benign and malignant solid lesions. Methods Two hundred and sixty-nine patients with 377 lesions （278 benign,99 malignant） were included in the study. The lesion were scored with Itoh scoring system and improved 5-scoring system respectively. By the strain ratio measure method equipped with the ultrasonic machine, strain ratio of the lesion was calculated, with 3.08 as the cut-off pont. According to pathologic diagnosis, the diagnostic performance of the 3 methods was evaluated with receiver operating characteristic curve（ROC）. Results The area under curve（AUC） of strain ratio measure method was 0. 965 ,that of improved 5-scoring system was 0. 951 ,and that of Itoh scoring system 0. 907. The diagnostic performance of strain ratio measure method was almost in the same with improved 5-scoring system（ P ）0.05） ,better than Itoh system（ P = 0. 021）. For the lesions scoring 3 and 4 with improved 5-scoring system, strain ratio measure method had higher accuracy than improved 5-scoring system. Conclusions Strain ratio measure method could provide a new,more objective diagnostic standard for ultrasonic elastography.
出处
《中华超声影像学杂志》
CSCD
北大核心
2010年第2期142-144,共3页
Chinese Journal of Ultrasonography
基金
广东省医学科研项目（A2007192）
