White S C, Sapp J P, Seto B G, Mankovich N J
Section of Oral Radiology, School of Dentistry, University of California, Los Angeles.
Oral Surg Oral Med Oral Pathol. 1994 Nov;78(5):650-4. doi: 10.1016/0030-4220(94)90180-5.
A recent study reported that the mean density of periapical cysts was greater than that of periapical granulomas. This study, which used a larger sample size and a robust method for standardization of density and contrast between images, found no difference between the radiographic density of cysts and granulomas classified by microscopic evaluation. Cysts tend to be larger than granulomas, but there was wide variation in size of both types of lesions. There was no significant correlation between the density of a lesion and its size.
最近一项研究报告称，根尖囊肿的平均密度高于根尖肉芽肿。该研究采用了更大的样本量以及一种用于图像密度和对比度标准化的可靠方法，结果发现，通过显微镜评估分类的囊肿和肉芽肿的放射学密度之间没有差异。囊肿往往比肉芽肿大，但两种类型病变的大小差异很大。病变的密度与其大小之间没有显著相关性。
