64层MDCT共轭采集技术和图像多平面重组对听骨链细节显示分析

发布时间：2018-04-29 19:06

本文选题：听骨链 + MDCT　；参考：《临床放射学杂志》2014年01期

【摘要】：目的采用64层MDCT共轭采集技术和图像多平面重组(MPR)的方法对正常听骨链和其维系结构进行成像,以改善对听骨链细节的显示。方法 25名(50耳)正常成人志愿者参与本研究。使用64层MDCT共轭采集技术,ADW图像后处理工作站进行图像MPR。骨窗进行最大密度投影,软组织窗进行平均密度投影分别用以显示骨性听骨链和其韧带及肌肉。结果 64层MDCT共轭采集技术结合MPR方法清晰地显示了正常听骨链的形态、大小及相互关系。锤骨、砧骨及镫骨的显示率均为100%(50/50),鼓膜张肌的显示率为96%(48/50),锤骨外侧、上韧带显示率为70%(35/50),鼓膜显示率为62%(31/50)。结论共轭采集技术增加了Z轴空间分辨率;结合MPR、窗技术和不同密度投影可以明显改善对听骨链细节的显示。
[Abstract]:Objective to imaging the normal ossicular chain and its sustaining structure by using 64 layers of MDCT conjugate acquisition technique and image multiplane recombination (MPR) method to improve the display of the details of the ossicular chain. Methods 25 normal adult volunteers (50 ears) were involved in this study. The 64 layer MDCT conjugate acquisition technique and the ADW image post-processing workstation were used for the image MPR. bone. The window was projected with maximum density, and the average density projection of the soft tissue window was used to display the osseous ossicular chain and its ligaments and muscles respectively. Results 64 layers of MDCT conjugate acquisition technique combined with MPR method clearly showed the shape, size and relationship of the normal ossicular chain. The display rate of the malleus, incus and stapes were all 100% (50/50), and the tensor Myrma of the tympanic membrane. The display rate was 96% (48/50), the lateral of the malleus, the display rate of the upper ligament was 70% (35/50), and the display rate of the tympanic membrane was 62% (31/50). Conclusion the conjugate acquisition technique increased the spatial resolution of the Z axis, and the display of the details of the ossicular chain could be obviously improved by the combination of the MPR, the window technique and the different density projection.

【作者单位】：上海市松江区中心医院放射科;上海交通大学附属第一人民医院放射科;
【分类号】：R764

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