Comparison of accuracy of ultrasound,CT and MRI in the diagnosis of intraorbital cavernous hemangiomas
Objective To compare the accuracy of ultrasound,computer tomography(CT)and magnetic resonance imaging(MRI)in the diagnosis of intraorbital cavernous hemangiomas.Methods Eighty patients with suspected intraorbital cavernous hemangiomas admitted to our hospital from March 2019 to March 2022 were examined by ultrasound,CT and MRI.With pathology after biopsy as the gold standard,the diagnostic accuracy,sensitivity and specificity of ultrasound,CT and MRI in qualitation and localization of intraorbital cavernous hemangiomas were compared.The kappa statistic was used to test the consistency of the qualitation and localization of intraorbital cavernous hemangiomas diagnosed by ultrasound,CT and MRI versus the gold standard.Results Qualitative diagnostic accuracy(87.50％,86.25％),sensitivity(87.50％,87.50％),and specificity(87.50％,75.00％)of MRI and ultrasound were significantly higher than those of CT(72.50％,77.78％,25.00％,P＜0.05).There were no significant differences in the qualitative diagnostic accuracy,sensitivity and specificity between MRI and ultrasound(P＞0.05).Qualitative diagnosis by MRI and ultrasonography had a high agreement with the gold standard(Kappa value=0.728,0.752),and the qualitative diagnosis by CT had a fair agreement with the gold standard(Kappa value=0.596).The accuracy of localization(85.00％,82.50％),sensitivity(85.71％,84.29％),and specificity(80.00％,70.00％)of MRI and CT were significantly higher than those of ultrasound(67.50％,72.86％,30.00％,P＜0.05),which were comparable between MRI and CT(P＞0.05).Localization of intraorbital cavernous hemangiomas diagnosed by MRI and CT had a good agreement with the gold standard(Kappa value=0.734,0.771),and that of ultrasound had a fair agreement with gold standard(Kappa value=0.586).Conclusion Ultrasound has a higher accuracy in the qualitative diagnosis of intraorbital cavernous hemangiomas.CT has a higher accuracy of localization;and MRI has both higher accuracy of qualitative diagnosis and localization.MRI can assist in clinical formulation of treatment plans,although it is expensive.An optimal diagnostic technique should be selected according to the individualized situation.
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