Morphology of cranial sutures and radiologic evaluation of the variations of intersutural bones

Çalışkan, Sultan; Oğuz, Kader K.; Tunali, Selcuk; Aldur, M. Mustafa; Erçakmak, Burcu; Sargon, Mustafa F.

doi:10.5603/fm.a2018.0030

Cited by 10 publications

(9 citation statements)

References 4 publications

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“…Because asterion is a surgical landmark for transverse sinus surgery, its variations were studied many times by researches. Asterion is one of the sites including Wormian bones which vary in shape, size and number (6,11,12,13). Neurosurgeons should be careful when forming burr hole during posterolateral surgical approach to cranium because of the high incidence of Wormian bones in asterion (6).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Asterion Morphometry in Terms of Clinical Anatomy

Akkaşoğlu¹,

Farımaz²,

Aktaş³

et al. 2019

Eastern J Med

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Asterion is the junction of lambdoid, parietomastoid and occipitomastoid sutures and it corresponds to the location of the posterolateral fontanelle. It is close related to the location of junction of transverse and sigmoid sinuses. Mastoid process, posterior end of zygomatic arch, external occipital protuberance and lambda are bony features in close proximity of asterion. In the present study we measured the distance between asterion and each of aforementioned bony points. Twenty human dry skulls were included in this study. Distance between asterion and mastoid process was 43.65 ± 6.75 mm on the left side and 45.01± 6.04mm on the right side. Distance between asterion and posterior end of zygomatic arch was 43.97 ± 7.37 mm on the left side and 43.95± 7.02 mm on the right side. Distance between asterion and external occipital protuberance was 62.59 ± 8.83 mm on the left side and 54.75 ±5.57mm on the right side. Distance between asterion and lambda was 81.40 ± 7.36 mm on the left side and 82 ± 4.96 mm on the right side. In 84 % of the cases asterion was at the junction of transverse and sigmoid sinuses. In 12% of the cases asterion was below the junction of transverse and sigmoid sinuses. In 4 % of the cases asterion was above the junction of transverse and sigmoid sinuses. Asterion is the essential point to indicate safety zone for surgical approach and to determine sex and age. It is of great interest of anatomists, anthropologists, forensic experts, radiologists and neurosurgeons

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Section: Discussionmentioning

confidence: 99%

Evaluation of Asterion Morphometry in Terms of Clinical Anatomy

Akkaşoğlu¹,

Farımaz²,

Aktaş³

et al. 2019

Eastern J Med

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“…Due to the expected rate of disturbances of language prehension in these patients [ 10 ], it is possible to find larger variation of the CED value in this group. Another point to consider is that anatomical landmarks used to measure CED according to the procedure described by Simon et al [ 11 ] have an interindividual variation [ 34 – 37 ]. This could make the cut-off deviation value of 14.1° appear to be examiner-dependent, at least to some degree.…”

Section: Discussionmentioning

confidence: 99%

“Look straight ahead”—A new test to diagnose spatial neglect by computed tomography

et al. 2023

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Spatial neglect is the dominant behavioral disorder after right hemisphere brain lesions. Reliabel diagnosis by formal neuropsychological testing is often achieved only later during hospitalization, leading to delays in targeted therapies. We propose a way to diagnose spatial neglect right at admission. We measured the conjugated eye deviation (CED) on the initial computed tomography (CT) scans, in combination with the verbal instruction “Please look straight ahead” during the scan. The command was implemented in the scanner program and automatically played before a cranial CT started. This prospective study included a total 46 consecutive subjects (16 patients with first ever right brain damage and no spatial neglect, 12 patients with first ever right brain damage and spatial neglect, and 18 healthy controls). The right brain damaged groups were submitted to paper pencil tests to access the diagnosis of a spatial neglect after radiological confirmation of the brain damage during the initial phase of their hospitalisation. This procedure allowed us to define a cut-off value of 14.1 degrees of CED to the ipsilesional side to differentiate right hemispheric stroke patients with versus without spatial neglect with a confidence interval of 99%. This simple addition to a radiological routine procedure provides a new tool to help diagnose spatial neglect at the earliest stage possible and thus offers the possibility of providing patients with optimized rehabilitative therapy from a very early stage on.

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“…Due to the expected rate of disturbances of language prehension in these patients [10], it is possible to find larger variation of the CED value in this group. Another point to consider is that anatomical landmarks used to measure CED according to the procedure described by Simon et al [11] have an interindividual variation [33][34][35][36]. This could make the cut-off deviation value of 14.1° appear to be examiner-dependent, at least to some degree.…”

Section: Discussionmentioning

confidence: 99%

“Look straight ahead” – A new test to diagnose spatial neglect by computed tomography

Marques

Hanke

Schell

et al. 2022

Preprint

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Spatial neglect is the dominant behavioral disorder after right hemisphere brain lesions. Reliable diagnosis by formal neuropsychological testing is often achieved only later during hospitalization, leading to delays in targeted therapies. We propose a way to diagnose spatial neglect right at admission. We measured the conjugated eye deviation (CED) on the initial computed tomography (CT) scans, in combination with the verbal instruction 'Please look straight ahead' during the scan. The command was implemented in the scanner program and automatically played before a cranial CT started. This prospective study included a total 46 consecutive subjects (16 patients with first ever right brain damage and no spatial neglect, 12 patients with first ever right brain damage and spatial neglect, and 18 healthy controls). The right brain damaged groups were submitted to paper pencil tests to access the diagnosis of a spatial neglect after radiological confirmation of the brain damage during the initial phase of their hospitalisation. This procedure allowed us to define a cut-off value of 14.1 degrees of CED to the ipsilesional side to differentiate right hemispheric stroke patients with versus without spatial neglect with a confidence interval of 99%. This simple addition to a radiological routine procedure provides a new tool to help diagnose spatial neglect at the earliest stage possible and thus offers the possibility of providing patients with optimized rehabilitative therapy from a very early stage on.

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Morphology of cranial sutures and radiologic evaluation of the variations of intersutural bones

Cited by 10 publications

References 4 publications

Evaluation of Asterion Morphometry in Terms of Clinical Anatomy

Evaluation of Asterion Morphometry in Terms of Clinical Anatomy

“Look straight ahead”—A new test to diagnose spatial neglect by computed tomography

“Look straight ahead” – A new test to diagnose spatial neglect by computed tomography

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