Albert Andaluz2012 Proceedings IEEE 2012 ISBI Workshop on Open Source Medical Image Analysis software Albert Andaluz Francesc Carreras Cristina Santa Marta Debora Gil ISBI Wiro Niessen (Erasmus MC) and Marc Modat (UCL) Myocardial torsion estimation with Tagged-MRI in the OsiriX platform Myocardial torsion (MT) plays a crucial role in the assessment of the functionality of theleft ventricle. For this purpose, the IAM group at the CVC has developed the Harmonic Phase Flow (HPF) plugin for the Osirix DICOM platform . We have validated its funcionalty on sequences acquired using different protocols and including healthy and pathological cases. Results show similar torsion trends for SPAMM acquisitions, with pathological cases introducing expected deviations from the ground truth. Finally, we provide the plugin free of charge at http://iam.cvc.uab.es