The Presence of Clival Foramen Through Multidetector Computed Tomography of the Skull Base

İnal, Mikail; Muluk, Nuray Bayar; Özveren, Mehmet Faik; Çelebi, Umut Orkun; Şimşek, Gökçe; Burulday, Veysel; Bilgili, Mihrace Yasemin Karadeniz

doi:10.1097/scs.0000000000002129

Cited by 11 publications

(6 citation statements)

References 6 publications

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“…19 The presence of normal anatomic variants such as clival canal/foramen, fossa navicularis magna, or basilar transverse fissure (Sauser fissure) should not be confused with a clival cleft. [22][23][24] Although the etiology of coronal clival clefts is unknown, these clefts could be related to incomplete fusion of clival ossification centers, enlarged clival canals (fossa navicularis), or persistence of basilar transverse fissure. 19,[22][23][24] This study has some limitations by being retrospective and having a relatively small sample size.…”

Section: Clival Clefting/hypoplasia and Chd7 Mutationmentioning

confidence: 99%

“…[22][23][24] Although the etiology of coronal clival clefts is unknown, these clefts could be related to incomplete fusion of clival ossification centers, enlarged clival canals (fossa navicularis), or persistence of basilar transverse fissure. 19,[22][23][24] This study has some limitations by being retrospective and having a relatively small sample size. Despite these limitations, to date, it is the largest study to describe and illustrate clival pathology and clefting in CHARGE syndrome.…”

Section: Clival Clefting/hypoplasia and Chd7 Mutationmentioning

confidence: 99%

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Clival Malformations in CHARGE Syndrome

Mahdi

Whitehead

2018

AJNR Am J Neuroradiol

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Section: Clival Clefting/hypoplasia and Chd7 Mutationmentioning

confidence: 99%

Section: Clival Clefting/hypoplasia and Chd7 Mutationmentioning

confidence: 99%

Clival Malformations in CHARGE Syndrome

Mahdi

Whitehead

2018

AJNR Am J Neuroradiol

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“…Later, investigations were performed via three dimensional (3D) imaging. 17 Temporal Magnetic Resonance Imaging MRI examinations were performed by using a 1.5 Tesla (T) MR (Philips MRI Systems, Achieva Release 3.2 Level 2013-10-21, Philips Medical Systems Nederland B.V.). In the axial sections, the images were obtained in T2-weighted balanced fast field echo (B-FFE) planes (repetition time [TR]/echo time [TE]/ number of acquisitions [NSA] ¼ 7.019/3.51/2, slice thickness ¼ 0.5 mm, section spacing ¼ 0.5 mm, acquisition matrix ¼ 172 Â 290, FOV ¼ 170, and Flip angle ¼ 50).…”

Section: Temporal Multidetector Computed Tomographymentioning

confidence: 99%

A Comparison of Diagnostic Accuracy of Superior Semicircular Canal Dehiscence in MDCT and MRI, and Coexistence with Tegmen Tympani Dehiscence

İnal

Muluk

Şahan

et al. 2020

J Neurol Surg B Skull Base

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Objectives Tegmen tympani dehiscence in temporal multidetector computed tomography (MDCT) and superior semicircular canal dehiscence may be seen together. We investigated superior semicircular canal dehiscence in temporal MDCT and temporal magnetic resonance imaging (MRI). Methods In this retrospective study, 127 temporal MRI and MDCT scans of the same patients were reviewed. In all, 48.8% (n = 62) of cases were male, and 51.2% (n = 65) of cases were female. Superior semicircular canal dehiscence and superior semicircular canal-temporal lobe distance were evaluated by both MDCT and MRI. Tegmen tympani dehiscence was evaluated by MDCT. Results Superior semicircular canal dehiscence was detected in 14 cases (5.5%) by temporal MDCT and 15 cases (5.9%) by temporal MRI. In 13 cases (5.1%), it was detected by both MDCT and MRI. In one case (0.4%), it was detected by only temporal MDCT, and in two cases (0.8%), it was detected by only temporal MRI. Median superior semicircular canal-to-temporal distance was 0.66 mm in both males and females in temporal MDCT and temporal MRI. In both temporal MDCT and temporal MRI, as superior semicircular canal-to-temporal lobe distance increased, the presence of superior semicircular canal dehiscence in temporal MDCT and temporal MRI decreased. Tegmen tympani dehiscence was detected in eight cases (6.3%) on the right side and six cases (4.7%) on the left side. The presence of tegmen tympani dehiscence in temporal MDCT and the presence of superior semicircular dehiscence in MDCT and MRI increased. Conclusion Superior semicircular canal dehiscence was detected by both MDCT and MRI. Due to the accuracy of the MRI method to detect superior semicircular dehiscence, we recommend using MRI instead of MDCT to diagnose superior semicircular canal dehiscence. Moreover, there is no radiation exposure from MRI.

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“…Later investigations were carried out on this 3-dimensional image. 8 Measurements 1. In the coronal temporal MDCT views, the scutum-CP distance was measured (in millimeters; Figure 1).…”

Section: Multidetector Computed Tomographymentioning

confidence: 99%

Can MDCT Scan of the Temporal Bone Looking at Pneumatization Predict Surgical Vulnerability of the Facial Nerve?

et al. 2019

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Objectives: The aim of this study is to investigate the scutum–cochleariform process (CP) and scutum–promontorium distances according to the mastoid pneumatization condition. Methods: Two hundred temporal multidetector computed tomography scans (90 males and 110 females) were evaluated retrospectively. The scutum-CP and scutum–promontorium distances were measured. Facial canal dehiscence (FCD) in the tympanic segment and mastoid pneumatization were also evaluated. Results: The distances between scutum-CP and scutum–promontorium were not different between males and females and between right and left sides. Facial canal dehiscence in the tympanic segment was detected: 5.6% (right) and 7.8% (left) in males and 5.5% (right) and 10.0% (left) in females. Grade 4 (100%) pneumatization was detected mainly in 55.6% to 57.8% of the patients in both genders. Grade 0 (0%) pneumatization (sclerosis) was detected in 22.2% to 28.2% of both males and females. In more pneumatized mastoids, the scutum-CP and scutum–promontorium distances increased. In sclerotic mastoids, the scutum-CP and scutum–promontorium distances decreased. Facial canal dehiscence rates were not related to the mastoid pneumatization levels. Conclusion: Cochleariform process is an important landmark to localize the tympanic segment of the facial canal. In sclerosed mastoids, scutum-CP and scutum–promontorium distances decreased. There was no relationship between FCD rates and mastoid pneumatization levels. It may be due to the development of FCD that occurs during the intrauterine period. In endoscopic and classic ear surgeries, mastoid pneumatization must be evaluated preoperatively to avoid facial nerve injuries.

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The Presence of Clival Foramen Through Multidetector Computed Tomography of the Skull Base

Cited by 11 publications

References 6 publications

Clival Malformations in CHARGE Syndrome

Clival Malformations in CHARGE Syndrome

A Comparison of Diagnostic Accuracy of Superior Semicircular Canal Dehiscence in MDCT and MRI, and Coexistence with Tegmen Tympani Dehiscence

Can MDCT Scan of the Temporal Bone Looking at Pneumatization Predict Surgical Vulnerability of the Facial Nerve?

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