The effect of cardiac motion on noninvasive reconstruction of
Cardiac motion and deformation estimation in tagged magnetic resonance imaging
... tissue motion and to estimate cardiac deformation from t-MRI are ...the motion field, but with the general assumption that there is independence between ...smoothing effect in the strain ...
165
A novel hierarchical template matching model for cardiac motion estimation
... measures 18 . Therefore, a CME model that remains accurate during the whole cardiac cycle is essential. In addition, the FFD has smoothing effect which eventually underestimates the radial strain 27 . ...
12
Motion compensated iterative reconstruction for cardiac X-ray tomography
... raphy reconstruction and coronary centerline extraction technique to obtain motion artifact-free reconstructed images of the coronary arteries is proposed and evalu- ...on motion-vector fields ...
146
Personalized noninvasive imaging of volumetric cardiac electrophysiology
... potential reconstruction with state-of-art IECG approaches exhibits substantial improvement in quantitative accuracy of our ...fatal cardiac arrhythmia, in the patient’s ...
241
Reconstruction techniques for cardiac cine MRI
... Simple solutions to deal with respiratory motion are ei- ther BH procedures or navigator-based acquisitions. Breath holding requires patient cooperation to replicate the same position between successive BH to ...
16
Temperature reconstruction of infrared images with motion deblurring
... shearing effect, as can be seen in ...this effect occurs always in the x ...relative motion between camera and object takes place in the x direction as shown in ...
8
Noninvasive ventilation improves cardiac function in patients with chronic heart failure
... decreased cardiac transmural pressure, thereby decreasing preload and afterload and improving LVEF ...hypovolemic effect with CPAP by decreased filling table 2: subgroup analyses with regard to the risk of ...
7
4D Cardiac Volume Reconstruction from Free-Breathing 2D Real-Time Image Acquisitions using Iterative Motion Correction
... to motion between acquisition steps, either in between different parts of K-space (results in blurring artifacts) or between slices (results in an inconsistent image ...
6
Joint Image and Motion Reconstruction for Positron Emission Tomography
... joint reconstruction of both image and motion in positron- emission-tomography ...from motion estima- tion: They use deformable image registration/optical flow techniques in order to esti- mate the ...
183
Cardiac motion and function analysis using MR imaging
... myocardial motion and blood flow with good contrast, which enables quantitative assessment of heart ...a noninvasive and non-ionising approach and hence is the suitable tool to assess cardiac ...
221
Correcting motion in multiplanar cardiac magnetic resonance images
... In this study, a novel method is proposed to correct breath-hold related or overall motion for multiplanar cine CMR images. Images were acquired using routine clinical imaging protocol. A stack of parallel ...
16
Efficacy of noninvasive cardiac imaging tests in diagnosis and management of stable coronary artery disease
... offer noninvasive imaging in any plane without any limitations due to lungs or ribs and avoiding nonionizing ...wall motion abnormalities in the presence of ...wall motion abnormalities using ...
11
4D Cardiac Reconstruction Using High Resolution CT Images
... resolution cardiac images in a single heart beat ...4D motion of the endo- cardial surface of the left ventricle (LV) for a full cardiac ...This reconstruction framework captures the ...
8
Improved Reconstruction for Cardiac MRI using Coupled Dictionary Learning
... Local search methods used in brain imaging are thus not suitable. In addition an exhaustive global search for patches is impossible given the computational cost to solve this problem, we propose a framework to combine ...
5
Motion compensated tomography reconstruction of coronary arteries in rotational angiography.
... 3-D reconstruction of the coronary tree from a rotational X-ray projection ...the reconstruction of the 3-D coronary tree at different phases of the cardiac cycle, the motion estimation, and ...
5
A statistical method for retrospective cardiac and respiratory motion gating of interventional cardiac x ray images
... 265 The bi-plane pairs which minimized this distance, defined as the minimal reprojection er- rors, would yield the best catheter or pacing lead reconstruction. Hence, we quantitatively assessed how well our ...
27
Undersampled Cine 3D tagging for rapid assessment of cardiac motion
... In general, data acquisition can be accelerated by undersampling in spatial and temporal dimensions. Among the various approaches, two strategies have gained significant attention. Compressed sensing (CS) [29] employs ...
12
Undersampled Cine 3D tagging for rapid assessment of cardiac motion
... In general, data acquisition can be accelerated by undersampling in spatial and temporal dimensions. Among the various approaches, two strategies have gained significant attention. Compressed sensing (CS) [29] employs ...
13
Motorcycle accident reconstruction in VL Motion
... Simulation Data – Virtual.Lab Motion Test data – DEKRA.?. Survey on PTW accidents investigations[r] ...
41
Noninvasive Cardiology Focused Review. Cardiac MRI: Where Are We?
... This same technique of contrast-enhanced MRI can pro- vide accurate assessment of both infarct size and microvas- cular obstruction (MO) after MI. Both acute and chronic infarcts appear as hyperenhanced regions when ...
7