Keywords: Motion Correction, Motion Correction, radar; software-defined radio; cine MRI
Motivation: Limitations of existing motion-mitigation strategies continue to pose a barrier for clinical adoption of MRI in some patient groups and body regions.
Goal(s): To develop an RF-based sensor that utilizes the Doppler effect to detect various types of bulk and internal body motion, operating independently from the MRI scanner.
Approach: Implemented a continuous-wave Doppler radar with software-defined radio.
Results: In this pilot study focusing on respiration, the developed radar sensor generated motion curves comparable to reference techniques and reduced motion blurring in abdominal MRI.
Impact: Radar is a powerful tool for sensing motion. The independence from the MRI receive chain and frequency range offers advantages for detecting diverse types of motion across MR applications, body regions, and possibly even outside the scanner during interventional procedures.
How to access this content:
For 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.
After 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.
After 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.
Keywords