Abstract #0926

Respiration-resolved 5D flow MRI: Impact of the number of respiratory states of blood flow quantification in congenital heart disease patients

Elizabeth Weiss¹, Justin Baraboo¹, Liliana Ma¹, Mariana B. L. Falcão², Christopher W. Roy², Joshua D. Robinson³, Matthias Stuber², Cynthia K Rigsby⁴, and Michael Markl¹

¹Radiology, Northwestern University, Chicago, IL, United States, ²University of Lausanne (CHUV), Lausanne, Switzerland, ³Cardiology, Ann & Robert Lurie Children's Hospital, Chicago, IL, United States, ⁴Medical Imaging, Ann & Robert Lurie Children's Hospital, Chicago, IL, United States

Synopsis

Keywords: Flow, Velocity & Flow, congenital heart diseaseWe adapted our novel respiratory gating method to evaluate the impact of respiratory state (RS) resolution on respiratory driven flow measured by 5D flow MRI. We found that the impact of respiratory state resolution was both anatomy and vessel dependent. Caval veins and measurements in single ventricle disease patients were most impacted by the reduction of respiratory states. Shunt patients and pulmonary artery measurements were more robust to reduced RS and may be able to take advantage of the decreased acceleration associated with fewer RS. 5D flow MRI is well suited for this variable need as respiratory gating is retrospective.

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.