Abstract #4866

Validation of Qp/Qs quantification based on 4D flow MRI: effects of scan acceleration techniques

Takashi Fujiwara¹, Erin K Englund¹, Mehdi H Moghari¹, Brian Fonseca², Lorna P Browne¹, and Alex J Barker^1,3

¹Department of Radiology, Children's Hospital Colorado, University of Colorado Anschutz Medical Campus, Aurora, CO, United States, ²Department of Pediatrics, Children's Hospital Colorado, University of Colorado Anschutz Medical Campus, Aurora, CO, United States, ³Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, CO, United States

Synopsis

The ratio of pulmonary to systemic blood flow (Qp/Qs) is a clinically important index to estimate the existence and amount of cardiovascular shunt flow and to determine the need for surgical intervention for congenital heart disease patients. Accelerated 4D flow MRI is capable of measuring Qp/Qs in a single acquisition, but its accuracy and reliability are not well established. We compared conventional 2D phase-contrast MRI and two 4D flow MRI acquisitions with different acceleration techniques to investigate accuracy of Qp/Qs quantification with accelerated 4D flow in adult healthy volunteers (N=10). Consequently, we found no statistical differences in Qp/Qs.

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.