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Flat Maps
24
3.7.5 Aligning
The program mrAlign is a plug-in of mrLoadRet (see next section) and it is used to automati-
cally or manually align the low-resolution inplane anatomy data to the high-resolution volume
anatomy data (vAnatomy; the reference volume). This produces an affine 4x4 alignment ma
trix, which specifies the transformation between inplane coordinates and high-resolution vol-
ume coordinates. Please refer to [Nestares and Heeger, 2000 #40] for further information.
(a)
(b)
CS
STS
PO
Ca
STS
Ca
PO
CS
Frontal
Temporal
Parietal
5 cm
Occipital
(c)
Figure 9: Flattening of cortical surface
In (a), the surface view of a hemisphere can be seen; (b) shows the flattened repre-
sentation of an entire hemisphere; it is shaded according to the local convexity of
the cortical surface; Both (a) and (b) show principal sulci (CS=central sulcus;
STS=superior temporal sulcus; PO=parieto occipital sulcus; Ca=calcarine sulcus;
Source: [Wandell, et al., 2000 #38]
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