Pre-FESS Imaging of Paranasal Sinuses and Nasal Cavity: Using Multi-detector Computed Tomography (MDCT) in...

Area of Science:

• Radiology
• Otolaryngology
• Medical Imaging

Background:

• Paranasal sinus (PNS) and nasal cavity evaluation has significantly advanced.
• Multi-detector Computed Tomography (MDCT) provides submillimetric slice thickness and high-quality multiplanar reconstructions.

Purpose of the Study:

• To highlight the impact of MDCT on sino-nasal imaging.
• To emphasize the benefits of MDCT for understanding complex sino-nasal anatomy and variations.
• To discuss the role of MDCT in pre-operative planning for sinus surgeons.

Main Methods:

• Utilizing MDCT with submillimetric slice thickness for detailed anatomical assessment.
• Employing multiplanar reconstructions (orthogonal and non-orthogonal planes), including sagittal views.
• Analyzing axial volume datasets in three dimensions and using customized window settings.
• Implementing mandatory scan checklists and template-based structured reporting.

Main Results:

• Improved understanding of intricate sino-nasal anatomy and normal variations.
• Enhanced visualization of frontal sinus drainage pathways and lateral nasal wall anatomy.
• Routine use of 3D analysis and customized window settings for better structure appreciation.
• Facilitation of pre-operative planning through structured reporting and checklists.

Conclusions:

• MDCT represents a paradigm shift in PNS and nasal cavity imaging.
• Detailed anatomical insights from MDCT aid radiologists and sinus surgeons.
• Collaboration between radiologists and surgeons enhances understanding of surgically relevant anatomy and variations.