Comparison of MRI and CT in the Evaluation of Unilateral Maxillary Sinus Opacification

Autor: Elise Chua, Annakan V. Navaratnam, Dominic St Leger, Vincent Lam, Samit Unadkat, Alexander Weller
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Radiology Research and Practice, Vol 2021 (2021)
Druh dokumentu: article
ISSN: 2090-1941
2090-195X
DOI: 10.1155/2021/5313196
Popis: Objectives. To evaluate the diagnostic performance of MRI compared with CT in differentiating neoplastic from infectious/inflammatory causes of complete unilateral maxillary sinus opacification (UMSO). Although MRI is increasingly used, no studies validate its utility compared to CT or nasal endoscopy in this context. Methods. A retrospective analysis of 49 patients presenting with complete UMSO to a tertiary referral centre was performed, investigated with both CT and MRI. Two head and neck radiologists independently reviewed each imaging modality and recorded both a final diagnosis and Likert-scale diagnostic certainty score. A consensus radiological diagnosis was determined, stratified into potentially neoplastic or infectious/inflammatory aetiology, and compared with nasal endoscopy and final diagnosis. Diagnostic performance and interoperator agreement for predicting neoplasia were calculated. Results. Both CT and MRI demonstrated high sensitivity and negative predictive value for neoplasm, although MRI was more specific (79%; 95% CI: 60–92%) than CT (14%; 95% CI: 4–32%), with a higher positive predictive value. MRI was more accurate (88%; 95% CI: 75–95%) than CT (49%; 95% CI: 34–64%) in diagnosing neoplasia. MRI had significantly higher diagnostic certainty Likert scores than CT (p
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