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. 2013 Mar 21;2013:105937. doi: 10.1155/2013/105937

Figure 1.

Figure 1

MRI TOF demonstrating a complete fetal PCA (cfPCA) and partial fetal PCA (pfPCA). (a) Typical pattern of PCAs as terminus of basilar artery. (b) Partial fPCA on the right side. The arrow shows an atretic communication between the basilar artery and the posterior communicating artery forming the PCA. (c) Complete fPCA on the left side. The arrow shows lack of communication between the basilar artery and the PCA.