Ct Skull Base Anatomy

Given that the file is large loading may take a few minutes. For lesions that are completely intraosseous the mass may only be appreciated on mri figure 1.

Overview Of Skull Base Anatomy

Navigating the skull base.

Ct skull base anatomy. 5 internal occipital protuberance. An interactive program for learning skull base anatomy welcome to navigating the skull base. The coronal suture is the line where the parietal bone frontal bone and are in contact.

Basic anatomy review the bones sutures and fissures that comprise the skull base. A noncontrast sinus or skull base ct which covers the mastoids temporal bone and entire skull base is recommended and intravenous contrast is not usually necessary as the mri will provide soft tissue detail. To begin click on introduction.

B axial ct image with color coded overlay shows the skull base bones. Ct is the modality of choice in defining the bony anatomy of the skull base and to depict the thin cortical margins of skull base neurovascular foramina. Ct anatomy of skull base.

A axial three dimensional reconstructed ct image with color coded overlay shows the skull base sections. You can however go directly to any section using the links below. Skull ct anatomy the sagittal suture is the line where the right and left parietal bone are in contact.

To load the skull base ct anatomy module in a new window click on its image above. Cranial foramina for further details. 3 anterior clinoid process.

Ct anatomy of skull base. 2 superior orbital fissure. Blue central skull base csb purple posterior skull base teal anterior skull base asb.

Foramina of the skull base and the structures that pass through them. Blue temporal bones fuchsia nasal bones green ethmoid bone light pink vomer purple occipital bones teal sphenoid bone yellow zygomatic bones. The base of the skull is perforated by numerous foramina which allow vessels and nerves to pass through the base of the skull allowing the intracranial cavity to communicate with the rest of the body see main article.

Detailed anatomy enter this module for a more detailed review of skull base anatomy. The skull base can be evaluated by computed tomography ct which will demonstrate the bony structures of the skull base with its foramina and fissures for vessels and cranial nerves the temporal bone and sinonasal cavities. 4 mastoid air cells.

Ct is superior to mri for subtle cortical bone changes but marrow processes are best characterized with non gadolinium gd contrast enhanced t1 mri. Basic skull base anatomy. The module interface is meant to mimic a radiology workstation with adjacent image scrolling via arrow keys and or mouse wheel button.

Navigating the skull base identify the petro occipital fissure to navigate the major structures of the skull base. Click the next link at the bottom of each page to step through each section. Ct is more sensitive in detecting fibro osseous skull base lesions calcification and sclerosis.

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