Keywords: Fetal, Fetal, Fetal 4D flow, Aortic coarctation
Motivation: Fetal 4D flow MRI can improve prenatal aortic coarctation diagnosis, but vessel segmentation for fetal 4D flow is challenging and requires expertise.
Goal(s): To test the flow quantification performance and interobserver dependence of fetal 4D flow with motion corrected black blood (BB) segmentation for volunteers and coarctation patients.
Approach: BB imaging was motion corrected and registered to 4D flow. Net flow was quantified based on manual segmentation of the great vessels done by two observers.
Results: BB segmentation-based flow quantification was less observer dependent and better captured distal aortic arch flow in coarctation patients than the conventional 4D flow analysis.
Impact: Vessel segmentation for fetal 4D flow is challenging, but our approach combining 4D flow and motion corrected black blood imaging may facilitate segmentation and flow quantification of the distal aortic arch for coarctation patients, potentially improving diagnosis of prenatal coarctation.
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