Objective To investigate the diagnostic value of ultrasonography,computed tomography(CT)and magnetic resonance imaging(MRI)in orbital cavernous hemangiomas(OCH).Methods A total of 53 OCH patients who were surgically treated and pathologically confirmed in the Department of Ophthalmology from January 2019 to January 2021 were selected.Taking pathological diagnosis as the standard,the similarities and differences of ultrasonic and MRI imaging manifestations of OCH patients were summarized.The optimal imaging examination method for OCH diagnosis was discussed.Results Ultrasonography confirmed 51/53 cases of OCH located in the muscle cone.B-ultrasound scans showed round or circular masses with blurred boundaries,massive but uneven distributions of internal echoes,reduced sound attenuation and absence of blood flow signals in masses.The rise time(RT)and mean transit time(mTT)in OCH patients within the muscle cone were significantly longer than those located out of the muscle cone(P<0.05).MRI confirmed 1 OCH patient with brain metastasis through the supraorbital fissure,with a clear boundary with the brain tissue.51 cases of OCH were located in the orbital cone as MRI confirmed.MRI scans showed round or circular masses with gradual and obvious uniform enhancement on the dynamic enhancement scan;CT confirmed 49/53 OCH patients with uneven progressive enhancements,and tumor diameter>1.5 cm,and 4 cases of tumor diameter<1.5cm and uniform enhancement.Taking pathological diagnosis as the gold standard,the sensitivity(95.67%),specificity(88.91%)and accuracy(92.37%)of ultrasonography combined with CT and MRI in the diagnosis of OCH were significantly higher than those of their single detection.Conclusion A progressive enhancement(uneven and/or persistent)is the characteristic of OCH.Ultrasonography,CT and MRI have different important advantages in the diagnosis of OCH.Ultrasonography has obvious advantages in the localization diagnosis of OCH.MRI directly yields coronal,sagittal and transverse views of OCH,but no other significant advantages compared with CT.The combined examinations of ultrasonography,CT and MRI is beneficial to improve the coincidence rate of OCH diagnosis.
orbital cavernous hemangiomaultrasound,computed tomography(CT),nuclear magnetic resonancepathologic diagnosis
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