Original Assignee Boeing Co Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Whitley Shawn Paul Snell Current Assignee (The listed assignees may be inaccurate. ( en Inventor Jason Andrew Koehn James K. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number EP20130160544 Other languages German ( de) Google Patents EP2645111A1 - Velocity profile mapping system The velocity coefficient is calculated by the averaged Pearson’s correlation between predicted and true velocities.EP2645111A1 - Velocity profile mapping system Using segmentation masks and phase images, we could calculate the longitudinal, radial and circumferential velocity of the myocardium with a self-developed Python toolkit. The velocity coefficient is calculated based on the velocity curves. To evaluate our segmentation, Dice scores were used, which can also be considered as an additional validation for our synthesis tasks. For ablation studies, we added two metrics to evaluate the performance of predicted segmentation. We then validated the performance of the proposed modules in our model via ablation studies. The myocardium segmentation results at the same time. Our algorithmĬan not only increase the temporal resolution 3Dir MVMs, but can also generates
Results and 3) loss functions highlighting myocardium pixels. That output the interpolated frames and corresponding myocardium segmentation Our algorithm is featured byġ) three attention-based encoders which accept magnitude images, phase images,Īnd myocardium segmentation masks respectively as inputs 2) three decoders Increase the temporal resolution of 3Dir MVM data. In this study, we proposed a frame synthesis algorithm to Time causes low temporal resolution and may provide an inaccurate assessment ofĬardiac motion. Usage of this technique by causing breathing artifacts, while shortening the However, long acquisition time limits the
Multi-slice left ventricular myocardial velocity mapping (3Dir MVM), which is aĬardiac MR technique providing magnitude and phase information of the This pattern could be obtained by three-directional CINE
Temporal patterns of cardiac motion provide important information for cardiacĭisease diagnosis.