Background: Hematomas and recurrent hemoarthrosis are a common problem in hemophilic patients from an early age. Early diagnosis is critical in preventing hemophilic arthritis. Therefore, early detection and proper follow up is critical. Compared to MRI, ultrasonography (us) has advantage of the lack of need for sedation in young children, absence of susceptibility artefacts for haemosiderin deposition, high cost and risk of hemosiderin deposition of hemophilic joints, lower cost of examination and easier.

Aims: To diagnose joint lesions in children with haemophilia, assess the role of US in the diagnosis and follow up of these lesions.and To assess specificity and accuracy of US compared to MRI in diagnosing of Joint problems in haemophilic children.

Methods: A cross sectional study was done for 95 hemophilic patients attending hematology outpatient clinic during period from 2016 to 2018 at Pediatrucs and Radiology Departments of Zagazig University-Egypt. The following data were collected from studied patients and their family after their consent demographic., clinical data, joint examination as well as standard muscloskeletal ultrasonography and MRI scan following Denver Scoring system.

Results: There was a high statistical significant agreement between MRI and Ultrasonographyy in Denver classifications of affected joints. Ultrasonography was excellent to detect hemoarthrosis and synovial hyperplasia in ankle, knee and elbow joints with sensitivity 85.7, 97,6% and 100 respectively.

Conclusions: The ultrasonography is useful for diagnosis joint bleeding as well as follow up of health of joints.

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ISTH Congress Abstracts - https://abstracts.isth.org/abstract/the-role-of-ultrasonography-versus-mri-in-the-diagnosis-of-joint-problems-in-hemophilic-children/