The Application of Opacification-Development Ratio Based on CT Scan for Diagnosing Pediatric Chronic Rhinosinusitis

Jun Zhang1, Anni Yang1, Tengyu Chen1

  • 1Department of Otolaryngology, Head and Neck Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, People's Republic of China.

Insights

The opacification-development ratio (ODR) shows strong diagnostic potential for pediatric chronic rhinosinusitis on CT scans. This new ODR score is particularly effective in diagnosing young children, outperforming the traditional Lund-Mackay score.

Area of Science:

  • Radiology
  • Pediatric Otolaryngology
  • Medical Imaging

Background:

  • Pediatric chronic rhinosinusitis (CRS) diagnosis can be challenging using clinical symptoms alone.
  • Computed tomography (CT) scans are frequently used but can yield high false-positive rates.
  • Objective assessment tools are needed to improve diagnostic accuracy in children.

Purpose of the Study:

  • To evaluate the diagnostic performance of the opacification-development ratio (ODR) for pediatric CRS.
  • To compare the ODR with the established Lund-Mackay (LM) score in children.
  • To determine the ODR's utility in different pediatric age groups.

Main Methods:

  • Retrospective analysis of nasal CT scans from 1820 children aged 0-15 years.
  • Calculation of the ODR and LM scores for each patient.
  • Assessment of diagnostic accuracy using area under the receiver operating characteristic curve (AUC) and predictive values.

Main Results:

  • A significant positive correlation was found between ODR and LM scores across all age groups.
  • In children aged 0-15 years, ODR (AUC 0.7970) showed comparable diagnostic accuracy to LM (AUC 0.7719).
  • ODR demonstrated significantly superior performance in children aged 0-4 years (p < 0.001), with high specificity (94.2%) at an optimal cut-off of 25.83.

Conclusions:

  • The ODR is a valuable CT-based tool for diagnosing pediatric CRS.
  • ODR shows particular diagnostic strength in younger children (0-4 years).
  • The ODR may help improve diagnostic accuracy and reduce false positives in pediatric CRS evaluations.
Abstract