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Background To investigate the diagnostic characteristics of high-frequency ultrasound with color doppler flow signal in pediatric testicular torsion to increase the diagnostic accuracy.Methods Seven pediatric patients from October 2017 to August 2019 with preserved blood flow signal but surgically diagnosed as testicular torsion were retrospectively included into the study. The imaging manifestations of high-frequency ultrasonography were evaluated.Results Seven cases of testicular torsion withdoi:10.21203/rs.3.rs-42065/v1 fatcat:fnvwjs7m6nfujp75tfn7djopqy