Increase in sensitivity and signal stability in 17O MRI using a cryogenic RF probe

The assessment of CMRO2 with 17O-MRI is hampered by a 34000 times smaller signal than that of 1H. In this study we present a cryogenic RF coil for the use of 17O- MRI at 54.27 MHz and make a comparison with a home-built room temperature coil. The 16 mm cryogenic 17O coil was cooled to 30 K and had a Q of 480. Single pulse acquisitions yielded an SNR gain of about 5.3 and a gain in signal stability of more than 8 compared to the room temperature coil. 3D-FLASH images of H217O the mouse brain were acquired of with 1x1x2 mm3 resolution.

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.

Click here for more information on becoming a member.