Visualization of Eustachian Tube Cartilage on Delayed Contrast-enhanced MR Imaging
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1Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital Sapporo, Hokkaido, Japan.
Abstract:
Eustachian tube cartilage remains difficult to assess despite its importance in middle ear function. Delayed contrast-enhanced 3D MRI with non-ionic gadobutrol improves cartilage visualization and enables segmentation in representative cases. This editorial reviews the evolution of Eustachian tube imaging and the rationale for comparing ionic and non-ionic contrast agents. These findings support 3D morphological assessment, although their relevance to cartilage degeneration and tubal function requires validation. Integration with quantitative MRI and functional testing may clarify disease mechanisms and inform clinical applications.
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