Reversed Brain Anatomical Asymmetries in Schizophrenia: A Search for Contributing Variables

Myslobodsky, Michael S.; Weinberger, D.R.

doi:10.1007/978-1-4613-1949-8_23

Cited by 1 publication

(2 citation statements)

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“…MR images in the sagittal plane are aligned with the interhemispheric fissure. The interhemispheric fissure may be curved in more than 30% of the subjects due to occipital falx deviation (Myslobodsky and Weinberger, 1987). As a result, the medical surface of the occipital lobe may not be coplanar with the surface of MR imaging.…”

Section: Discussionmentioning

confidence: 99%

“…A slight increase in the size of the hemisphere may occur when the cut traverses the occipital pole. Also, given that the falx is typically deviated to the fight (Myslobodsky and Bar-Ziv, 1989;Myslobodsky and Weinberger, 1987), a part of the left occipital pole could actually be imaged with the right hemisphere. The same problem could conceivably complicate the identification of the most caudal portion of the calcarine sulcus since the latter seldom reaches the end of the occipital pole (Stensaas et al, 1974).…”

Section: Discussionmentioning

confidence: 99%

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Bilateral comparison of occipital lobe sulci: A sulcus identifying algorithm

1996

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A procedure for automatic identification of sulci of cerebral hemispheres in magnetic resonance images is presented. The algorithm departs from information of the spatial location of a given feature (e.g., sulcal contour) in one hemisphere and automatically defines its course in the other hemisphere. The automatic tracing of sulci was successfully performed in the mesial aspect of both hemispheres in 18 normal individuals. The sulcal location in the target hemisphere was first approximated by assuming an affine transformation between hemispheres, and then refined by local edge analysis. The method produced reliable results in comparing the intersulcal areas (the cuneus), sulcal length, their complexity, and the angle between the pariteooccipital and retrocalcarine fissures.

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Section: Discussionmentioning

confidence: 99%