Occipital petalia as a predictive imaging sign for transverse sinus dominance

  title={Occipital petalia as a predictive imaging sign for transverse sinus dominance},
  author={Ezgi Yetim Arsava and Ethem Murat Arsava and Kader Karli Oguz and Mehmet Akif Topcuoglu},
  journal={Neurological Research},
  pages={306 - 311}
ABSTRACT Objectives: Occipital petalia is an anatomic description where one of the occipital lobes protrudes towards the contralateral side. Transverse sinus (TS) asymmetry might cause diagnostic challenges with regards to thrombotic or compressive pathologies involving these sinuses. In this study, we investigated the association between occipital petalia and TS hypoplasia on MRI studies. Methods: In 264 subjects with no neurological complaints, occipital bending was determined on T1-weighted… 

Can occipital lobe bending, Gibraltar sign of superior sagittal sinus groove and jugular foramen dimensions predict transverse sinus dominance?

Test the possible hypothesis that certain anatomical features - namely, occipital lobe bending, Gibraltar sign of superior sagittal sinus groove (SSS) and jugular foramen dimensions - can predict dominance of the transverse sinuses on routine axial T1- and T2-weighted images found it to have a good association with right TS dominance.

Asymmetries of Cerebellar Lobe in the Genus Homo

Results show that significant asymmetry is only observed for the cerebellar length in modern humans and is absent in Homo erectus and Neanderthals, which is suggested to be related to high cognitive activities, such as social factors and language ability.

Occipital bending in migraine with visual aura

To analyze occipital bending (OB) frequency in patients with migraine with visual aura compared with those without aura, data are analyzed via positron emission tomography and electrophysiology.




Human cerebral asymmetries evaluated by computed tomography.

  • H. ChiuA. Damasio
  • Psychology, Medicine
    Journal of neurology, neurosurgery, and psychiatry
  • 1980
The study does not support the concept that cerebral "symmetry" or "reverse asymmetry" are associated with left-handedness or ambidexterity, and CT scan may be of value as a direct predictor of cerebral dominance.

Association between Transverse Sinus Hypoplasia and Cerebral Venous Thrombosis: A Case-Control Study.

Occipital bending (Yakovlevian torque) in bipolar depression

A blind, controlled study of occipital cerebral asymmetry in schizophrenia

Asymmetries of the cerebral hemispheres on computed tomograms.

  • M. Le MayD. Kido
  • Psychology, Medicine
    Journal of computer assisted tomography
  • 1978
Hemispheral asymmetries tend to be less striking in left handed individuals, but widening of the left frontal and right occipital regions is more common in left handers than right handers.

The Gibraltar Sign: An Anatomic Landmark for Predicting Transverse Sinus Dominance Laterality on Conventional MRI

This retrospective study assesses the ability of multiple anatomic features on axial noncontrast T1‐weighted images of the brain to predict congenital TS dominance.

Occipital bending in schizophrenia

The results suggest that occipital bending is more prevalent among schizophrenia patients than healthy subjects and that schizophrenia patients have different gray matter–white matter proportions.

Occipital bending in depression.

The results suggest that Occipital bending is more common among patients with major depressive disorder than healthy subjects, and that occipital asymmetry and occipitals bending are separate phenomena.

Structural and functional brain asymmetries in human situs inversus totalis

The developmental factors determining anatomic asymmetry of the cerebral petalia and viscera are distinct from those producing the functional lateralization of language, suggesting that the human brain is asymmetric in structure and function.

Structural asymmetries in the human brain: a voxel-based statistical analysis of 142 MRI scans.

A voxel-wise statistical analysis of hemispheric asymmetries in regional 'amounts' of gray matter based on MRI scans obtained in 142 healthy young adults confirmed the presence of left-greater-than-right asymmetry in several posterior language areas and found previously described asymmetry in the cingulate sulcus and the caudate nucleus.