Fishman E K, Ney D R, Kawashima A, Scott W W, Robertson D D
Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, Maryland.
Invest Radiol. 1993 Feb;28(2):146-9. doi: 10.1097/00004424-199302000-00012.
The objective of this study is to determine whether the use of edge-enhancement post-processing filters was useful in the computed tomographic (CT) multiplanar evaluation of skeletal trauma.
The group consisted of a series of 10 cases of skeletal trauma (3 cases of acetabular fractures, 3 cases of tibial plateau fractures, and 4 cases of ankle fractures). All patients had a CT scan using a scan protocol of 4-mm collimation and 3-mm interscan interval. All transaxial images were reconstructed with both a standard algorithm and with an edge-enhancement filter. The images from each group were then reconstructed into coronal and sagittal planes. Three individuals independently reviewed each case and compared image pairs to determine whether images using an edge-enhancement filter were of better or worse quality than standard images.
The reviewers found the images with edge-enhancement to be equal to or superior to images reconstructed with a standard algorithm, regardless of the image plane chosen. This bias was especially true in cases of hip and ankle trauma.
When CT supplemented by multiplanar imaging is used in patients with skeletal trauma, image data reconstruction should be done with an edge-enhancement filter to optimize image detail.
本研究的目的是确定在骨骼创伤的计算机断层扫描（CT）多平面评估中使用边缘增强后处理滤波器是否有用。
该组包括一系列10例骨骼创伤病例（3例髋臼骨折、3例胫骨平台骨折和4例踝关节骨折）。所有患者均采用4毫米准直和3毫米层间距的扫描协议进行CT扫描。所有横断面图像均采用标准算法和边缘增强滤波器进行重建。然后将每组图像重建为冠状面和矢状面。三名人员独立审查每个病例并比较图像对，以确定使用边缘增强滤波器的图像质量是否优于或劣于标准图像。
无论选择何种图像平面，审查人员发现具有边缘增强的图像与使用标准算法重建的图像相当或更优。这种偏差在髋部和踝关节创伤病例中尤为明显。
当对骨骼创伤患者使用CT并辅以多平面成像时，应使用边缘增强滤波器进行图像数据重建，以优化图像细节。
