{"paper_id":"3344b644-ff70-4a53-a86d-dbf02d7c2ccc","body_text":"Abstract #5173\nPo-Han Chuang1,2, Yu-Han Yang1, Li-Wen Liu1, Su-Yuan Wei1, Chia-Wei Lee3, Chien-Yuan Lin3, Yu-Chun Lin2, and Shyh-Jye Chen1\n1Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan, 2Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan, 3GE Healthcare, Taipei, Taiwan\nKeywords: Pelvis, Treatment, HIFU\nMotivation: Evaluating treatment efficacy of high-intensity focused ultrasound (HIFU) is crucial for physicians to determine whether the procedure is complete.\nGoal(s): This preliminary study validates the use of T2*-mapping with iDEAL-IQ for evaluating the treatment effects of HIFU without contrast injection.\nApproach: A decrease in T2* values was observed in the lesion region between different oxygenation conditions, while equal or increased values were noted after treatment.\nResults: These preliminary results suggest that T2* mapping could be an effective tool for treatment assessment.\nImpact: T2*-mapping, which can reveal the variations in oxygenation, would be an effective tool for assessing treatment outcomes of high-intensity focused ultrasound (HIFU) in uterine myomas and adenomyosis, without the need for contrast injection.\nHow to access this content:\nFor one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.\nAfter one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.\nAfter two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.\nKeywords","source_license":"CC0","license_restricted":false}