Journal of Rhinology 1999;6(2):131-135.
Published online November 30, 1999.
A Comparison between Coronal and Axial Scans in PNS CT
Seung Kyu Chung, Seong Won Yoon, Hun Jong Dhong
Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Sungkyunkwan University, Samsung Medical Center Seoul, Korea.
Background and Objectives
A coronal section computerized tomography (CT) is essential for the diagnosis of paranasal sinusitis, especially in the evaluation of the ostiomeatal unit. Although the coronal scan is preferred to the axial scan, the role of the axial scan during endoscopic sinus surgery has not been thoroughly examined. The aim of this study is to compare the advantages and disadvantages of coronal and axial scans in the paranasal sinuses.
Materials and Method
S: Selected for study were the coronal and axial scans of 30 preoperative sinus CTs showing minimal sinus pathology. The rates of detecting 15 anatomic structures in the coronal and axial sections were analyzed across 60 sides.
The coronal scan was superior to the axial scan in detecting eight normal structures, including the anterior ethmoid artery, the opening of the maxillary sinus and the superior meatus (p<0.05). The axial scan was useful in showing the vertical portion of the 3rd basal lamella and the opening and the anterior wall of the sphenoid sinus (p<0.05).
The coronal scan is more informative than the axial scan but has limitations in showing the structures lying on the coronal plane. The axial scan plays a complementary role in covering this limitation. Together, the coronal and axial sections of a sinus CT can help the surgeon to understand the three dimensional structure of the paranasal sinus before endoscopic sinus surgery.
Key Words: Paranasal sinus CT;Coronal scan;Axial scan

METRICS Graph View
  • 619 View
  • 4 Download
Related articles

Editorial Office
101 Hyundai ESA Apt., 20, Hyoryeong-ro 77-gil, Seocho-gu, Seoul 06628, Republic of Korea
Tel: +82-2-3461-9945    Fax: +82-2-3461-9947    E-mail:                

Copyright © 2021 by Korean Rhinologic Society. All rights reserved.

Developed in M2PI

Close layer
prev next