Schmitz-Moormann P, Thoma W, Hein J, Ihm P
Anat Anz. 1977;141(5):507-11.
The diameter and the thickness of all the side ducts were measured in 27 normal or nearly normal human pancreata. The obtained data (about 5,000 pairs of Figures) were evaluated statistically. The relative thickness of the walls increases with growing distance from the papilla as well as with the reduction of the diameter of the side ductes. Beyond the age of fifty the diameter of the ducts is 10--13% higher than in younger age. In a logarithmical system there is a strong correlation between the diameter and the thickness of the side ducts, slightly diminished with aging. The regression coefficient is slightly diminished with aging. But the variance of the wall thickness in respect to the diameter of the ducts shows such a rise with aging, that the number of ducts with relatively thick and small walls increase with aging. By reason of the logarithmic system the positive variance has a higher weight. Therefore periductal fibrosis increases with aging.
在27个正常或接近正常的人体胰腺中测量了所有侧支导管的直径和厚度。对获得的数据（约5000对数据）进行了统计学评估。管壁的相对厚度随着距乳头距离的增加以及侧支导管直径的减小而增加。五十岁以后，导管直径比年轻时高10% - 13%。在对数系统中，侧支导管的直径与厚度之间存在很强的相关性，随着年龄增长略有减弱。回归系数随着年龄增长略有减小。但是，管壁厚度相对于导管直径的方差随着年龄增长呈现出这样一种上升趋势，即管壁相对较厚且直径较小的导管数量随着年龄增长而增加。由于对数系统，正方差具有更高的权重。因此，导管周围纤维化随着年龄增长而增加。
