SPIRAL CT DEBLURRING FOR IN SITU COCHLEAR IMPLANT STUDY

描述：本研究的目标是提高分辨率 对颞骨进行螺旋CT扫描，主要是为了改善 人工耳蜗术后的评估。第一个具体目标是提高CT 图像。这将通过计算机编程和数学处理来完成。 模糊技术和专门的转台传输，具有 比目前可用的纵向分辨率更高。第二 具体目的是评估第一部分中的图像，并验证 图像得到了改善。去模糊算法将通过以下方式进行评估 数学和物理幻影。听小骨和听小骨部分的测量 将在去模糊的扫描图像上进行比较 与从实际的颞骨样本中获得的数据进行比较。 还将对植入物的模糊图像进行测量 并将其与机械规格和 对植入物的检查。

DESCRIPTION: The goal of the study is to improve the resolution of spiral computed tomography of the temporal bone primarily to improve the evaluation of cochlear implants. The first specific aim is to improve CT images. This will be done with computer programming and mathematical de- blurring techniques and with a specialized table transport that has greater longitudinal resolution than that currently available. The second specific aim is to evaluate the images from part one and verify that the images are improved. The deblurring algorithms will be evaluated with mathematical and physical phantoms. Measurements of ossicles and parts of the cochlea will be made on the deblurred scanned images and compared with those obtained from the actual temporal bone specimens. Measurements will also be made of the deblurred images of implanted patients and will be compared to the mechanical specifications and survey of the implants.