Accurate harmonic phase tracking of tagged MRI using locally-uniform myocardium displacement constraint

Accurate harmonic phase tracking of tagged MRI using locally-uniform myocardium displacement constraint

Highlights • HARP is the most commonly used technique for tracking the myocardium in tagged MRI. • The accuracy of HARP is known to be limited by tag fading and phase errors. • We propose a novel constraint to improve the reliability and accuracy of HARP. • Quantitative validation is done using nume...

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Veröffentlicht in:Medical engineering & physics 2016-11, Vol.38 (11), p.1305-1313
Hauptverfasser: ElDeeb, Safaa M, Fahmy, Ahmed S
Format: Artikel
Sprache:eng
Schlagworte:
Cardiac function
HARP
Heart - diagnostic imaging
Image Processing, Computer-Assisted - methods
Magnetic Resonance Imaging
MRI
Myocardium tagging
Phantoms, Imaging
Phase-based tracking
Radiology
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Zusammenfassung:Highlights • HARP is the most commonly used technique for tracking the myocardium in tagged MRI. • The accuracy of HARP is known to be limited by tag fading and phase errors. • We propose a novel constraint to improve the reliability and accuracy of HARP. • Quantitative validation is done using numerical phantom and 11 patients. • Significant improvement of HARP is evident from the results.
ISSN:1350-4533
1873-4030
DOI:10.1016/j.medengphy.2016.08.002