The impact of renal perfusion on magnetization transfer imaging (MTI) was evaluated on seven pigs that underwent consecutive MRI at baseline, 50%, 75%, and 100% acute renal artery stenosis as well as reperfusion. Renal perfusion, R2*, apparent diffusion coefficient (ADC), stiffness, and MT ratio (MTR) were measured. During graded ischemia, decline in renal perfusion was accompanied with elevated R2*, decreased ADC and stiffness. In contrast, no change was observed in the MTR. In conclusion, MTI is insensitive to decrease in renal perfusion and may offer a relatively reliable technique for measurement of renal structural changes.
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