ACR appropriateness criteria sinonasal disease

Area of Science:

• Radiology
• Otolaryngology
• Medical Imaging

Background:

• Rhinosinusitis impacts over 16% of the US population, incurring significant economic costs.
• Clinical diagnosis is sufficient for most acute and subacute rhinosinusitis cases, often negating the need for imaging.
• Sinonasal imaging is primarily indicated for inflammatory rhinosinusitis or suspected mass lesions.

Purpose of the Study:

• To outline the appropriate use of sinonasal imaging in clinical practice.
• To detail the roles of CT and MRI in evaluating sinonasal conditions.
• To present evidence-based guidelines for sinonasal imaging.

Main Methods:

• Review of current medical literature from peer-reviewed journals.
• Application of a modified Delphi consensus methodology.
• Utilizing the ACR Appropriateness Criteria for evidence-based guidelines.

Main Results:

• CT of the sinuses without contrast is the primary imaging modality for recurrent acute or chronic sinusitis.
• MRI serves as a complementary tool for complex infections, invasive fungal sinusitis, or sinonasal masses.
• Imaging findings must be interpreted alongside clinical and endoscopic evaluations for accurate sinusitis diagnosis.

Conclusions:

• Sinonasal imaging plays a vital role in specific clinical scenarios, guided by established criteria.
• CT is the preferred initial imaging for chronic sinusitis, while MRI is reserved for complex cases.
• Accurate diagnosis relies on integrating imaging results with clinical presentation and endoscopic findings.