高级检索
当前位置: 首页 > 详情页

Evaluation of Femoral Head Perfusion by Contrast-Enhanced Ultrasound in a Rabbit Model of Steroid-Induced Osteonecrosis.

文献详情

资源类型:
Pubmed体系:

收录情况: ◇ EI

机构: [1]Department of Ultrasound, Guangzhou University of Traditional Chinese Medicine First Affiliated Hospital, Guangzhou, China. [2]Guangdong Medical Laboratory Animal Center, Foshan, China. [3]Guangzhou University of Chinese Medicine, Guangzhou, China.
出处:
ISSN:

摘要:
To study the technical feasibility of contrast-enhanced ultrasound (CEUS) in evaluating femoral head perfusion in a rabbit model of steroid-induced femoral head osteonecrosis. Twenty rabbits were divided randomly into a control group (n = 8) and an experimental group (n = 12). Rabbits in the experimental group were induced by lipopolysaccharide and methylprednisolone to build a model of steroid-induced femoral head osteonecrosis. Contrast-enhanced ultrasound examinations were performed at 3 and 5 weeks after induction. Then, pathologic examinations and microvessel density (MVD) calculations were performed on the excised rabbit femoral heads. The MVD of the experimental group decreased significantly 3 and 5 weeks after induction compared with that of the control group. According to the CEUS examination results, significant differences existed in the ascending slope, descending slope, mean transit time, and time to peak between the groups at 5 weeks (P < .05). A correlation analysis showed that the descending slope had a certain correlation with the MVD (correlation coefficient, 0.376). A receiver operating characteristic curve was used to analyze the capacity of the CEUS parameters to predict the occurrence of osteonecrosis. The areas under the curve for the ascending slope and descending slope were 0.758 and 0.760, respectively (P < .05). Contrast-enhanced ultrasound can visualize the microcirculation in steroid-induced osteonecrosis of the femoral head in rabbits and may be a useful imaging method for the early monitoring and prediction of femoral head osteonecrosis. © 2019 by the American Institute of Ultrasound in Medicine.

基金:
语种:
PubmedID:
中科院(CAS)分区:
出版当年[2019]版:
大类 | 4 区 医学
小类 | 4 区 声学 4 区 核医学
最新[2025]版:
大类 | 3 区 医学
小类 | 3 区 声学 3 区 核医学
第一作者:
第一作者机构: [1]Department of Ultrasound, Guangzhou University of Traditional Chinese Medicine First Affiliated Hospital, Guangzhou, China.
通讯作者:
通讯机构: [1]Department of Ultrasound, Guangzhou University of Traditional Chinese Medicine First Affiliated Hospital, Guangzhou, China. [*1]Department of Ultrasound, Guangzhou University of Traditional Chinese Medicine First Affiliated Hospital, 16 Jichang Rd, 510405 Guangzhou, Guangdong, China
推荐引用方式(GB/T 7714):
APA:
MLA:

资源点击量:2020 今日访问量:0 总访问量:646 更新日期:2024-07-01 建议使用谷歌、火狐浏览器 常见问题

版权所有©2020 广东省中医院 技术支持:重庆聚合科技有限公司 地址:广州市越秀区大德路111号