Keywords: Artifacts, Artifacts, metal, implant, spinal cord, diffusion, multi-spectral imaging
Diffusion-weighted (DW) spinal cord MRI based on single-shot EPI suffers from strong geometric distortion and signal loss artifacts. While strategies have been developed to reduce these artifacts in DW-EPI, their application in spinal cord DWI is challenging when metal implants are present near the spine. A multispectral DW-PROPELLER has been proposed to overcome this challenge; however, this requires long scan times. In this work, we developed a single-shot TSE technique with multispectral imaging and reduced FOV to achieve fast speed / increased SNR for spinal cord DWI near metals. Volunteer and patient results demonstrated reduced artifacts and improved speed/SNR performance.
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