Bi-parametric MRI of the Diaphragm Using Dynamic and Static Images: The Initial Experience

Area of Science:

• Medical Imaging
• Diagnostic Radiology
• Anatomy

Background:

• Recent advancements in magnetic resonance imaging (MRI) enable real-time evaluation of anatomical structure motion.
• Diaphragmatic dysfunctions require accurate diagnostic methods for effective management.
• Bi-parametric MRI combines dynamic and static sequences for comprehensive diaphragm visualization.

Purpose of the Study:

• To assess the interobserver agreement in diagnosing diaphragmatic dysfunctions using bi-parametric MRI.
• To evaluate the utility of combined dynamic and static MRI sequences for diaphragm assessment.

Main Methods:

• Retrospective analysis of 29 bi-parametric MRI examinations.
• Inclusion of coronal T2 single-shot turbo spin echo and coronal SENSE single-shot balanced turbo field echo real-time sequences.
• Assessment of images by two independent observers and calculation of Cohen's kappa coefficient for interobserver agreement.

Main Results:

• The study included 29 patients with a mean age of 44.86 years (range 18-80).
• A Cohen's kappa coefficient of 0.889 was calculated.
• This value indicates a strong agreement between the two independent observers.

Conclusions:

• Bi-parametric MRI demonstrates high interobserver agreement for diagnosing diaphragmatic abnormalities.
• This imaging approach is a promising tool for evaluating diaphragmatic dysfunctions.
• The combination of dynamic and static sequences enhances visualization and diagnostic accuracy.