CT scan of coronal and the axial PNS is useful in determining the concerned defects in this area.
What is CT scan PNS Plain-Coronal Axial?
This computing tomography employs to scan the peripheral nervous system in case the patient suffers from a problem in this area. It is the evaluation of paranasal sinuses through both axial and coronal scans. The axial scan of the PNS includes the areas from the maxillary sinus to the frontal sinus.  The coronal scan includes the area from the posterior margin of sphenoid sinus to the anterior wall of the frontal sinus.  The evaluation of tumors and neoplastic processes come under this method. It is a cost-effective approach to diagnose chronic and acute sinusitis.
How is CT Scan PNS Plain – Coronal Axial performed?
The procedure is as follows.
- Give the patient a contrast, if needed.
- The patient has to lie down on a bed in a still position.
- The bed moves along the tunnel of the scanner and scans the body parts.
- X–rays are absorbed differently in the different parts; thus we obtain the part in the film.
- A computer can produce different images by changing the patient’s position.
The scan completion timing is 30 seconds, and the process completion timing is 10 minutes. 
Risks/side effects of CT scan PNS Plain-Coronal Axial
The risks associated with the X-rays and the contrast material are:
- X–rays are highly carcinogenic if exposed to a prolonged period.
- Mild discomfort due to holding one position at a time.
- Itching and redness due to the contrast.
- Vomiting and headache due to contrast.
Preparation before CT scan PNS Plain-Coronal Axial
Prior to the procedure, one must keep in mind the following:
- Remove the jewelry and accessories from your body.
- Inform the doctor of bismuth and diabetes medicine intake.
- Do not consume food 4-6 hours before the test. 
- Inform the doctor of pregnancy.
Post care after CT scan PNS Plain-Coronal Axial
The post care steps for the patient are:
- Pay attention to any instructions provided by the doctor.
- No special control in diet and activities required.