Computed tomographic evaluation of surgically significant vascular variations related with the temporal bone

Variations of the vascular structures related with the temporal bone may cause important problems in diagnosis, treatment planning and surgery. High resolution computed tomography (CT) scans of 700 temporal bones of 350 patients were retrospectively examined for the incidence of dehiscent jugular bu...

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Bibliographic Details
Published in:European journal of radiology 1995-05, Vol.20 (1), p.52-56
Main Authors: Atilla, Serhan, Akpek, Sergin, Uslu, Sabri, Ilgit, Erhan T., Işik, Sedat
Format: Article
Language:English
Subjects:
Artery, CT
Artery, internal carotid
Biological and medical sciences
Brain, anatomy variations
Carotid Artery, Internal - anatomy & histology
Carotid Artery, Internal - diagnostic imaging
Computed tomography, brain
Cranial Sinuses - anatomy & histology
Cranial Sinuses - diagnostic imaging
Female
Humans
Investigative techniques, diagnostic techniques (general aspects)
Jugular Veins - anatomy & histology
Jugular Veins - diagnostic imaging
Male
Medical sciences
Middle Aged
Nervous system
Radiodiagnosis. Nmr imagery. Nmr spectrometry
Retrospective Studies
Temporal Bone - blood supply
Temporal Bone - diagnostic imaging
Tomography, X-Ray Computed - methods
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Summary:Variations of the vascular structures related with the temporal bone may cause important problems in diagnosis, treatment planning and surgery. High resolution computed tomography (CT) scans of 700 temporal bones of 350 patients were retrospectively examined for the incidence of dehiscent jugular bulb, high jugular bulb, diverticulum of jugular bulb, anteriorly located sigmoid sinus and dehiscent internal carotid artery. Dehiscent jugular bulb was seen in 27 (3.9%), high jugular bulb was seen in 142 (20.3%), jugular bulb diverticulum was seen in 55 cases (7.9%). The average distance between external acoustic canal and sigmoid sinus was found to be 13.3 mm and in 12.4% of the cases this distance was < 10 mm. Of 700 temporal bones, 10 (1.4%) showed dehiscent carotid canal. To aid diagnosis, treatment planning and surgery, CT scanning is currently a very reliable tool in determining these conditions. Special attention should be paid to the position of the vascular structures in the preoperative temporal bone CT scans.
ISSN:0720-048X
1872-7727
DOI:10.1016/0720-048X(95)00619-2