Baseline correction does not improve flow quantification in phase-contrast velocity measurement for routine clinical practice
| Autor: | Christine Lyko, Eike Philipp Schneider, John Hess, Christian Meierhofer, Stefan Martinoff, Sohrab Fratz, Heiko Stern |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Heart Defects
Congenital Male medicine.diagnostic_test Heart disease Phantoms Imaging business.industry Phase contrast microscopy Magnetic resonance imaging medicine.disease Magnetic Resonance Imaging Imaging phantom Flow measurement law.invention law Flow quantification Humans Medicine Female Radiology Nuclear Medicine and imaging business Nuclear medicine Velocity measurement Blood Flow Velocity Shunt (electrical) |
| Zdroj: | Clinical Imaging. 39:427-431 |
| ISSN: | 0899-7071 |
| DOI: | 10.1016/j.clinimag.2014.12.010 |
| Popis: | Introduction Velocity offset errors may influence flow measurement in phase-contrast cardiovascular magnetic resonance (CMR). By using a stationary gel phantom, offset errors probably may be corrected. We tested its impact on flow measurement and, in particular, on shunt calculation in patients proven not to have any shunt. Methods Flow measurements were carried out in 24 patients with congenital heart disease. Baseline correction was performed by using a stationary gel phantom. Results Significantly more patients without shunts incorrectly showed a calculated shunt after baseline correction. Conclusions Baseline correction did not improve flow measurement and was clinically not relevant for routine CMR. |
| Databáze: | OpenAIRE |
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