Gur D, Yonas H, Jackson D L, Wolfson S K, Rockette H, Good W F, Cook E E, Arena V C, Willy J A, Maitz G S
Invest Radiol. 1985 Oct;20(7):672-7. doi: 10.1097/00004424-198510000-00004.
Simultaneous measurements of cerebral blood flow have been performed in baboons to assess the correlation between the acute and invasive nondiffusible microsphere technique and the noninvasive xenon-enhanced CT method. Blood flows in small tissue volumes (approximately 1 cm3) were directly compared. The results of these studies demonstrate a statistically significant association between the two methods (P less than .001). Similar correlations were obtained by both the Kendall tau (tau) and the Spearman (r) methods. The problems and limitations of such correlations are discussed.
在狒狒身上同时进行了脑血流量测量，以评估急性侵入性非扩散微球技术与非侵入性氙增强CT方法之间的相关性。对小组织体积（约1立方厘米）中的血流量进行了直接比较。这些研究结果表明，两种方法之间存在统计学上的显著关联（P小于0.001）。通过肯德尔tau（tau）法和斯皮尔曼（r）法都获得了相似的相关性。文中讨论了这种相关性存在的问题和局限性。
