Ct Sinuses Anatomy

Information about the sinus anatomy of individual patients is essential prior to a fess procedure functional endoscopic sinus surgery. 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.

Nose And Sinonasal Cavities Radiology Key

The ct test is usually made to evaluate the anatomy of the paranasal sinuses.

Ct sinuses anatomy. Others are much smaller. Given that the file is large loading may take a few minutes. The patient may also be positioned face down with the chin elevated.

The agger nasi cells are the most anterior ethmoidal air cells. The module interface is meant to mimic a radiology workstation with adjacent image scrolling via arrow keys and or mouse wheel button. This web page presents the anatomical structures found on paranasal sinuses ct.

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 paranasal sinuses usually consist of four paired air filled spaces. The largest sinus cavities are about an inch across.

Axial view coronal view sagittal view. Paranasal sinuses ct anatomy. Ct is currently the modality of choice in the evaluation of the paranasal sinuses and adjacent structures.

Your cheekbones hold your maxillary sinuses the. For a ct scan of the sinuses the patient is most commonly positioned lying flat on the back. 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.

They have several functions of which reducing the weight of the head is the most important. Numerous sinonasal anatomic variants exist and are frequently seen on sinus ct scans. The sinuses are a connected system of hollow cavities in the skull.

Straps and pillows may be used to help the patient maintain the correct position and to hold still during the exam. Other functions are air humidification and aiding in voice resonance. Welcome to interactive ct sinus anatomy.

The most common ones are agger nasi cells infraorbital ethmoidal haller cells sphenoethmoidal onodi cells nasal septal deviation and concha bullosa 110. To load the sinus ct anatomy module in a new window click on its image above.

Ct Scan Anatomy Of Paranasal Sinuses Professor Dr Muhammad