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On turbo FLAIR images the PRC generally has a low SI in the neurologically normal brain, and this helps as an additional landmark in identifying the sensorimotor cortex 1).

The perirolandic low signal intensity seen on T2-weighted MR images is located exactly in the anatomic sensorimotor cortex in normal brains, whereas a mismatch can occur in abnormal brains 2).

Yoshiura T, Iwanaga S, Yamada K, Shrier DA, Patel U, Shibata DK, Numaguchi Y. Perirolandic cortex in infants: signal intensity on MR images as a landmark of the sensorimotor cortex. Radiology. 1998 May;207(2):385-8. PubMed PMID: 9577485.
perirolandic.txt · Last modified: 2018/03/20 09:10 by administrador