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Abstract #4455

Validation of 4D Flow Shunt Fractions (Qp/Qs) with 2D-PC in Patients with Partial Anomalous Pulmonary Venous Return

Mark L. Schiebler1, Phillip Kilgas1, Elizabeth Janus Nett2, Oliver Wieben2, Shardha Srinivasen3, Petros Anagnostopoulos4, Scott K. Nagle1, 2, Scott B. Reeder1, 5, Christopher J. Franois6

1Radiology, UW-Madison, Madison, WI, United States; 2Medical Physics, UW-Madison, Madison, WI, United States; 3Pediatric Cardiology, UW-Madison, Madison, WI, United States; 4Cardiothoracic Surgery, UW-Madison, Madison, WI, United States; 5Biomedical Engineering, UW-Madison, Madison, WI, United States; 6Radiology, University of Wisconsin-Madison, Madison, WI, United States

Determination of the shunt fraction (Qp/Qs) in patients with partial anomalous pulmonary venous return is needed prior to surgical repair. We found no significant difference between the gold standard 2D PC measurements of Qp/Qs and those derived from 4D flow MRA for 5 patients and 10 normal volunteers. These cases have complex extra cardiac venous connections and atrial septal defects that are more amenable to quantify off line using post processing techniques than they are on the scanner trying to proscribe multiple double oblique 2D PC acquisitions.

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Keywords

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