Carpenter W A, Stiles R G, Sheppard S K
Department of Radiology, Emory University School of Medicine, Emory Clinic, Atlanta, GA 30322.
AJR Am J Roentgenol. 1994 Jan;162(1):223-6. doi: 10.2214/ajr.162.1.8273670.
An alternative method of presenting and evaluating unenhanced and contrast-enhanced MR images is illustrated. We used a desktop computer and commercially available software to combine unenhanced and contrast-enhanced images to produce a color map of contrast enhancement superimposed on a gray-scale image. The color-enhanced images increased the conspicuousness of the areas of contrast enhancement, which is particularly important if the enhancing structures are small or adjacent to fatty tissues. The process has advantages over standard subtraction techniques in that gray scale is preserved while areas of subtle contrast enhancement are readily seen as areas of color. Although applied to MR imaging, this method may also be applicable to other studies that use contrast enhancement.
本文展示了一种呈现和评估未增强及对比增强磁共振图像的替代方法。我们使用台式计算机和市售软件将未增强图像与对比增强图像相结合，以生成叠加在灰度图像上的对比增强彩色图。彩色增强图像提高了对比增强区域的显著性，这对于增强结构较小或与脂肪组织相邻的情况尤为重要。该方法相对于标准减法技术具有优势，因为它在保留灰度的同时，细微对比增强区域能很容易地被视为彩色区域。尽管该方法应用于磁共振成像，但也可能适用于其他使用对比增强的研究。
