Gilissen E, Iba-Zizen M T, Stievenart J L, Lopez A, Trad M, Cabanis E A, Zilles K
Centre Hospitalier National d'Ophtalmologie des XV-XX, Service de Neuroradiologie, Paris.
J Hirnforsch. 1995;36(4):451-9.
To determine whether the length and depth of the calcarine sulcus are associated and can be used for estimating the size of the primary visual area (area 17) and other regions in MR images of the human occipital lobe.
The length and depth of the calcarine sulcus and the projection areas of the mesial surface of the occipital lobe and of the total hemisphere were measured in MR images of 23 healthy subjects.
A higher variability of the size of the projection area of the mesial surface of the occipital lobe compared with that of the remaining part of the hemisphere is found. The projection area of the mesial cortical surface of the occipital lobe is correlated with the length of the calcarine sulcus, but both parameters are not correlated with the depth of the calcarine sulcus and, therefore, also not with the size of the part of area 17 buried in the sulcus.
The size of area 17 cannot be estimated by the length of the calcarine sulcus in MR images. Depth and length of the calcarine sulcus grow independently in the human brain. Different degrees of folding may cause the variability of architectonic areas.
确定距状沟的长度和深度是否相关,以及是否可用于在人类枕叶的磁共振图像中估计初级视觉区(17区)和其他区域的大小。
在23名健康受试者的磁共振图像中测量距状沟的长度和深度以及枕叶内侧表面和整个半球的投影面积。
发现枕叶内侧表面投影面积的大小与半球其余部分相比具有更高的变异性。枕叶内侧皮质表面的投影面积与距状沟的长度相关,但这两个参数均与距状沟的深度无关,因此也与埋藏在沟内的17区部分的大小无关。
在磁共振图像中,无法通过距状沟的长度估计17区的大小。距状沟的深度和长度在人脑中独立生长。不同程度的折叠可能导致构筑区的变异性。