1. Analysis of the time-velocity curve in phase-contrast magnetic resonance imaging: a phantom study
- Author
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Jieun Park, Junghun Kim, Yongmin Chang, Sung Won Youn, Hui Joong Lee, Eun-Ju Kang, Ki-Nam Lee, Vojtěch Suchánek, Sinjae Hyun, and Jongmin Lee
- Subjects
Pulsatile flow ,time-velocity curve ,flow analysis ,phase-contrast magnetic resonance imaging ,doppler ultrasonography ,Computer applications to medicine. Medical informatics ,R858-859.7 ,Surgery ,RD1-811 - Abstract
The aim of this study was to analyze the characteristics of time-velocity curve acquired by phase-contrast magnetic resonance imaging (PC-MRI) using an in-vitro flow model as a reference for hemodynamic studies. The time- velocity curves of the PC-MRI were compared with Doppler ultrasonography (US) and also compared with those obtained in the electromagnetic flowmeter. The correlation between techniques was analyzed using an electromagnetic flowmeter as a reference standard; the maximum, minimum, and average velocities, full-width at half-maximum (FWHM), and ascending gradient (AG) were measured from time-velocity curves. The correlations between an electromagnetic flowmeter and the respective measurement technique for the PC-MRI and Doppler US were found to be high (mean R2 > 0.9, p
- Published
- 2019
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