Abstract
Background Cardiovascular magnetic resonance (CMR) flow quantification for determining the ratio of flow between the pulmonary artery and aorta (Qp/Qs) is used to quantify cardiac shunts. Post-processing methods, including linear or quadratic stationary tissue background correction have been proposed to improve accuracy and precision in flow quantification. However, it is not known which method improves the flow quantification the most, and if patient characteristics effect the correction. We evaluated changes in accuracy and precision of Qp/Qs following both linear and quadratic stationary tissue background correction, and investigated the effect on the precision of different patient characteristics. We hypothesized that the standard deviation of mean Qp/Qs would be reduced following stationary background correction compared to uncorrected measures.
Highlights
Cardiovascular magnetic resonance (CMR) flow quantification for determining the ratio of flow between the pulmonary artery and aorta (Qp/Qs) is used to quantify cardiac shunts
Best precision in measuring Qp/Qs is achieved with quadratic, not linear, stationary tissue background correction in phase contrast velocity encoded CMR
We evaluated changes in accuracy and precision of Qp/Qs following both linear and quadratic stationary tissue background correction, and investigated the effect on the precision of different patient characteristics
Summary
Cardiovascular magnetic resonance (CMR) flow quantification for determining the ratio of flow between the pulmonary artery and aorta (Qp/Qs) is used to quantify cardiac shunts. Post-processing methods, including linear or quadratic stationary tissue background correction have been proposed to improve accuracy and precision in flow quantification. It is not known which method improves the flow quantification the most, and if patient characteristics effect the correction. We evaluated changes in accuracy and precision of Qp/Qs following both linear and quadratic stationary tissue background correction, and investigated the effect on the precision of different patient characteristics. We hypothesized that the standard deviation of mean Qp/Qs would be reduced following stationary background correction compared to uncorrected measures
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
