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Chronic sinusitis: the role of imaging
1Catholic University of Louvain (UCL), Cliniques Universitaires UCL de Mont-Godinne, Department of Radiology, Yvoir, Belgium.
Acta Oto-Rhino-Laryngologica Belgica
|January 1, 1997
Summary
Computed tomography (CT) scans offer superior anatomical detail for evaluating chronic sinusitis and guiding Functional Endoscopic Sinus Surgery (FESS). Magnetic resonance imaging (MRI) is valuable for assessing complications.
Area of Science:
- Otolaryngology
- Radiology
- Surgical Anatomy
Background:
- Chronic sinusitis understanding has advanced with endoscopic examination and imaging.
- Functional Endoscopic Sinus Surgery (FESS) has been developed based on these advances.
- Computed tomography (CT) scans are now standard for paranasal sinus evaluation.
Purpose of the Study:
- To highlight the role of CT scans in evaluating chronic sinusitis.
- To compare CT and MRI utility in diagnosing and managing sinusitis.
- To provide guidance on optimal imaging techniques for surgical planning.
Main Methods:
- CT scans of the sinuses, particularly coronal views with high-resolution bony algorithms.
- Specific window settings (2500/250 HU) are recommended for diagnosis.
- Complementary axial CT sections for specific anatomical regions; MRI for complications.
Main Results:
- CT scans provide precise anatomical information crucial for FESS, especially regarding the ostiomeatal complex.
- Coronal CT is optimal due to its correlation with the surgical approach.
- MRI excels in visualizing intracranial and orbital complications, enhanced by contrast.
Conclusions:
- CT imaging is essential for diagnosing chronic sinusitis and planning FESS.
- MRI is superior for evaluating complex sinusitis complications involving soft tissues.
- Contrast-enhanced MRI is recommended for all complicated sinusitis cases.