Evaluation of Paranasal Sinus Anatomic Variations: Otolaryngologist versus Radiologist

Abstract

Objective: This study aimed to investigate whether or not there is a difference between clinical branches in the determination of anatomic variations, through the evaluation of Paranasal sinus computed tomography (PCT) images by an otolaryngology specialist and a radiology specialist. Material and Method: The axial and coronal PCT images were evaluated separately by an otolaryngology and radiology specialist. The anatomical variations found were compared. Results: A statistically significant difference was determined between the otolaryngology specialist and the radiology specialist in respect of the evaluations of septal deviation, concha bullosa, paradoxical middle concha, accessory maxillary sinus ostium, Haller cell, agger nasi cell, asymmetric olfactory fossa, and onodi cell (p<0.001). No statistically significant difference was determined between the two observers in respect of the evaluation of the anatomic variations of maxillary sinus pneumatization and pneumatized anterior clinoid process (ACP), and of the optic nerve sphenoid sinus relationship (p > 0.05). Conclusion: PCT has an important role in the diagnosis of sinonasal diseases and in the evaluation of the extremely variable anatomic structures. A detailed consensus on this subject would provide both standardizations in evaluations and allow real and comparable rates in the determination of variations to be made in the future.

Keywords

• Paranasal sinuses
• Tomography
• Otolaryngology
• Radiology

Paranazal Sinüs Anatomik Varyasyonlarının Değerlendirilmesi: Kulak Burun Boğaz Uzmanı ve Radyolog Karşılaştırması

Abstract

Amaç: : Bu çalışmanın amacı, bir kulak burun boğaz uzmanı ve bir radyoloji uzmanı tarafından yapılan paranazal bilgisayarlı tomografi (PBT) görüntülemeleri aracılığıyla anatomik varyasyonların belirlenmesinde klinik branşlar arasında fark olup olmadığını araştırmaktır. Gereç ve Yöntem: Aksiyel ve koronal PBT görüntüleri, bir kulak burun boğaz uzmanı ve bir radyoloji uzmanı tarafından ayrı ayrı değerlendirildi. Tespit edilen anatomik varyasyonlar karşılaştırıldı. Bulgular: Septal deviasyon, konka bülloza, paradoksal orta konka, aksesuar maksiller sinüs ostiumu, Haller hücresi, agger nasi hücresi, asimetrik olfaktör fossa ve Onodi hücresi değerlendirmelerinde kulak burun boğaz ve radyoloji uzmanları arasında istatistiksel olarak anlamlı fark bulundu (p<0.001). Maksiller sinüs pnömatizasyonu, pnömatize anterior klinoid çıkıntı ve optik sinir–sfenoid sinüs ilişkisi değerlendirmelerinde ise iki gözlemci arasında istatistiksel olarak anlamlı fark saptanmadı (p>0.05). Sonuç: PBT, sinonazal hastalıkların tanısında ve oldukça değişken anatomik yapıların değerlendirilmesinde önemli bir rol oynamaktadır. Bu konuda sağlanacak detaylı bir fikir birliği, hem değerlendirmelerde standardizasyonu sağlayacak hem de gelecekte varyasyonların belirlenmesinde daha gerçekçi ve karşılaştırılabilir oranların elde edilmesine olanak tanıyacaktır.

Keywords

• Paranazal Sinüsler
• Tomografi
• Otolaringoloji
• Radyoloji

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