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Cardiovascular magnetic resonance compatible physical model of the left ventricle for multi-modality characterization of wall motion and hemodynamics.

Okafor IU, Santhanakrishnan A, Chaffins BD, Mirabella L, Oshinski JN, Yoganathan AP - J Cardiovasc Magn Reson (2015)

Bottom Line: DPIV and PC-CMR results of the center plane flow within the ventricle matched, both qualitatively and quantitatively, with flow from the atrium into the LV having a velocity of about 1.15 m/s for both modalities.The mean difference between CMR and SP was 5.5 ± 3.7%.The model presented here can thus be used for the purposes of: (a) acquiring CMR data for validation of FSI simulations, (b) determining accuracy of cine-CMR reconstruction methods, and

View Article: PubMed Central - PubMed

Affiliation: School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA. iokafor3@gatech.edu.

No MeSH data available.


Mitral and aortic flow rates obtained via FP during the stereo-photogrammetry (SP) as well as the flow curves from PC-CMR acquisition on the LV physical model.
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Fig8: Mitral and aortic flow rates obtained via FP during the stereo-photogrammetry (SP) as well as the flow curves from PC-CMR acquisition on the LV physical model.

Mentions: Figure 8 compares the flow curves obtained during stereo-photogrammetry experiments via flow probes to those obtained during PC-CMR experiments. The flow curves obtained from the flow probes were averaged over 15 cardiac cycles. From the PC-CMR experiments, at the aortic plane, the peak aortic flow rate obtained was 20 L/min and the peak mitral flow rate was 17.5 L/min. The overall magnitudes of the flow rates between the FP and PC-CMR were similar, with the cardiac outputs for both modalities averaging at 3.5 L/min. The PC-CMR flow curves showed slight mitral and aortic regurgitation.Fig. 8


Cardiovascular magnetic resonance compatible physical model of the left ventricle for multi-modality characterization of wall motion and hemodynamics.

Okafor IU, Santhanakrishnan A, Chaffins BD, Mirabella L, Oshinski JN, Yoganathan AP - J Cardiovasc Magn Reson (2015)

Mitral and aortic flow rates obtained via FP during the stereo-photogrammetry (SP) as well as the flow curves from PC-CMR acquisition on the LV physical model.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4482204&req=5

Fig8: Mitral and aortic flow rates obtained via FP during the stereo-photogrammetry (SP) as well as the flow curves from PC-CMR acquisition on the LV physical model.
Mentions: Figure 8 compares the flow curves obtained during stereo-photogrammetry experiments via flow probes to those obtained during PC-CMR experiments. The flow curves obtained from the flow probes were averaged over 15 cardiac cycles. From the PC-CMR experiments, at the aortic plane, the peak aortic flow rate obtained was 20 L/min and the peak mitral flow rate was 17.5 L/min. The overall magnitudes of the flow rates between the FP and PC-CMR were similar, with the cardiac outputs for both modalities averaging at 3.5 L/min. The PC-CMR flow curves showed slight mitral and aortic regurgitation.Fig. 8

Bottom Line: DPIV and PC-CMR results of the center plane flow within the ventricle matched, both qualitatively and quantitatively, with flow from the atrium into the LV having a velocity of about 1.15 m/s for both modalities.The mean difference between CMR and SP was 5.5 ± 3.7%.The model presented here can thus be used for the purposes of: (a) acquiring CMR data for validation of FSI simulations, (b) determining accuracy of cine-CMR reconstruction methods, and

View Article: PubMed Central - PubMed

Affiliation: School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA. iokafor3@gatech.edu.

No MeSH data available.