Quantitative parameter character of choroidal melanoma in contrast-enhanced ultrasound

作     者：YANG Wen-li WEI Wen-bin LI Dong-jun 

作者机构：a Department of Ophthalmology Beijing Tongren Eye Center Beijing Tongren Hospital Capital Medical University Beijing Ophthalmology & Visual Sciences Key Laboratory Beijing 100730 China 

出 版 物：《Chinese Medical Journal》 (中华医学杂志（英文版）)

年 卷 期：2012年第125卷第24期

页      面：4440-4444页

核心收录：

学科分类：1305[艺术学-设计学（可授艺术学、工学学位）] 0710[理学-生物学] 13[艺术学] 1002[医学-临床医学] 07[理学] 08[工学] 09[农学] 071007[理学-遗传学] 0901[农学-作物学] 0836[工学-生物工程] 090102[农学-作物遗传育种] 

主　　题：choroidal disease malignant melanoma contrast ultrasound diagnosis 

摘      要：Background Choroidal melanoma is the most common intraocular malignant tumor in adults. It threatens not only the visual function but also the patient＇s life. Therefore, it is important to find a non-traumatic, quantitative and repetitive diagnostic method. This study investigated the value of quantitative analysis of contrast-enhanced ultrasound （CEUS） in the diagnosis of choroidal melanoma. Methods CEUS were performed in 51 cases of choroidal melanoma, which were diagnosed either pathologically or clinically and in 14 cases of choroidal hemangioma. The characteristics of the time-intensity curve of the contrast agent were analyzed. For the quantitative analysis, the following parameters of the contrast agent in the lesion were included： rising time （RT）, time to peak （TTP）, maximum intensity （MI） and the mean transit time （MTT）. Results Choroidal melanoma had the following characteristics on CEUS： Choroidal lesions were completely filled with contrast agent. The typical filling pattern was centripetal, with the peripheral of the choroidal lesion filled with the contrast agent first and then the center of the lesion. In some cases, areas with contrast agent filling defect were obseved in the lesions. The contrast agent filled the lesion slower than the normal eye and orbital tissue but faded faster in the lesion. Quantitative analysis showed that in choroidal melanoma, MI of contrast agent （191.31%±146.90%） was significantly more than that of the normal tissue （100.00%±0.00%） （P 〈0.05） and MTT （（63.56±26.04） seconds） was significanly less than that of the normal tissue （（149.87±182.68）seconds） （P 〈0.05）. TTP （22.80±9.85） was less than that of the normal tissue （（29.57±24.76） seconds） and RT （（18.52±7.09） seconds） was less than that of the normal tissue （（26.45±21.83） seconds）. Both the differences of TTP and RT were not statistically significant though. Logistic regression showed that to predict choroidal melanoma and choroidal hemangioma with MI and MTT, the sensi