Ct Sinuses Anatomy

Others are much smaller. For a ct scan of the sinuses the patient is most commonly positioned lying flat on the back.

Sinus Ct Scan Sinusitis W S Tichenor M D

Straps and pillows may be used to help the patient maintain the correct position and to hold still during the exam.

Ct sinuses anatomy. Its ability to optimally display bone soft tissue and air provides an accurate depiction of both the anatomy and the extent of disease in and around the paranasal sinuses. The sinuses are a connected system of hollow cavities in the skull. Sinuses ct brain bone windows the sphenoid sinus and ethmoid air cells are continuous with the nasal airways the mastoid air cells are continuous with the middle ear frontal sinuses ct brain bone windows.

Information about the sinus anatomy of individual patients is essential prior to a fess procedure functional endoscopic sinus surgery. The most common ones are agger nasi cells infraorbital ethmoidal haller cells sphenoethmoidal onodi cells nasal septal deviation and concha bullosa 110. Welcome to interactive ct sinus anatomy.

Paranasal sinuses ct anatomy. The agger nasi cells are the most anterior ethmoidal air cells. Axial view coronal view sagittal view.

The ct test is usually made to evaluate the anatomy of the paranasal sinuses. The module interface is meant to mimic a radiology workstation with adjacent image scrolling via arrow keys and or mouse wheel button. The paranasal sinuses usually consist of four paired air filled spaces.

Imaging the paranasal sinuses is routine in clinical practice to evaluate for various sinus pathology non specific facial pain and pre operative planning for functional endoscopic sinus surgery fess including post operative follow up. Ct is currently the modality of choice in the evaluation of the paranasal sinuses and adjacent structures. The largest sinus cavities are about an inch across.

Given that the file is large loading may take a few minutes. The patient may also be positioned face down with the chin elevated. This web page presents the anatomical structures found on paranasal sinuses ct.

Your cheekbones hold your maxillary sinuses the. Other functions are air humidification and aiding in voice resonance. They have several functions of which reducing the weight of the head is the most important.

To load the sinus ct anatomy module in a new window click on its image above. Numerous sinonasal anatomic variants exist and are frequently seen on sinus ct scans.

Radiologic Imaging In The Management Of Sinusitis American