Background phase correction in phase contrast velocity encoded CMR reduces gender differences and improves the accuracy and precision of Qp/Qs
| Autor: | Andreas Sigfridsson, Jonas Jenner, Martin Ugander, Jannike Nickander, Eva Maret, Mikael Lundin, Peder Sörensson |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Medicine(all)
Accuracy and precision Observational error Radiological and Ultrasound Technology medicine.diagnostic_test Computer science Phase correction Phase contrast microscopy Magnetic resonance imaging computer.software_genre Standard deviation law.invention Background Correction law Flow quantification Poster Presentation medicine Radiology Nuclear Medicine and imaging Data mining Cardiology and Cardiovascular Medicine computer Biomedical engineering |
| Zdroj: | Journal of Cardiovascular Magnetic Resonance |
| ISSN: | 1532-429X 1097-6647 |
| Popis: | Background Cardiovascular magnetic resonance (CMR) flow quantification for determining the ratio of flow between the pulmonary and systemic circulation (Qp/Qs) is used to quantify cardiac shunts. However, both the accuracy and precision of Qp/Qs can be influenced by measurement errors in flow quantification. Post-processing methods for stationary tissue background correction have been proposed to improve flow quantification accuracy. We sought to evaluate the changes in accuracy and precision of Qp/Qs following stationary tissue background correction. We hypothesized that stationary background correction would reduce the standard deviation (SD) of mean Qp/Qs compared to uncorrected measurements in clinical patients without cardiac shunts. |
| Databáze: | OpenAIRE |
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