MR imaging of cavernous sinus thrombosis

Area of Science:

• Radiology
• Neuroimaging
• Vascular Imaging

Background:

• Cavernous sinus thrombosis (CST) is a rare but serious condition.
• Accurate diagnosis is essential for timely intervention and improved patient outcomes.

Purpose of the Study:

• To evaluate the diagnostic utility of Contrast Enhanced Magnetic Resonance Imaging (CEMRI) for Cavernous Sinus Thrombosis (CST).
• To identify key imaging parameters for CST detection and assessment.

Main Methods:

• Retrospective analysis of CEMRI in 7 patients with CST (9 cavernous sinuses).
• Comparison with a control group of 7 patients (14 cavernous sinuses).
• Evaluation of qualitative and quantitative imaging parameters.

Main Results:

• Significant differences in mean diameters of cavernous sinus (CS), internal carotid artery (ICA), and superior ophthalmic vein (SOV) between CST and control groups (p < 0.05).
• Established cut-off values for CS diameter (≥10 mm), SOV dilation (≥2.9 mm), and ICA flow void (≤4.2 mm).
• Qualitative findings like abnormal dural enhancement and orbital apex involvement were more frequent in CST.

Conclusions:

• CEMRI is invaluable for diagnosing CST and assessing disease extent.
• Quantitative and qualitative parameters enhance diagnostic objectivity and accuracy.
• Facilitates prompt diagnosis and early treatment initiation for CST.