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With the advent of the technology in medical imaging, cardiac Magnetic Resonance Imaging (MRI), a non-invasive procedure, has been used to determine diagnostic information on cardiac function. Given the inherent difficulty in imaging the heart in motion, many efforts have been made to improve cardiac motion tracking and eliminate motion related artifacts. A dynamic heart phantom (DHP) capable of simulating...
The frequency domain (FD) radiative transfer equation (RTE) for fluorescence excitation and emission is implemented on block-structured grids. The numerical grid is adaptively refined near boundaries to accurately represent tissue of arbitrary shape using only Cartesian-type grids of varying refinement. The algorithm for the FD-RTE on block-structured grids is tested on a homogeneous numerical phantom...
Myocardial Elastography has been introduced as a non-invasive, ultrasound-based imaging, which can detect abnormalities in myocardial stiffness that cannot be detected with the current standard echocardiography used clinically. By acquiring radio-frequency (RF) frames at high frame rates (190-310 Hz), the deformation of the myocardium can be estimated, and used to identify regions of abnormal deformation...
The exact mechanism behind the blood-brain barrier (BBB) opening using Focused Ultrasound (FUS) and microbubbles remains unknown. Here, the effects of the murine skull on the pressure threshold of inertial cavitation were investigated using a passive cavitation detector (PCD) in conjunction with B-mode imaging. A cylindrical vessel with a 610-??m diameter inside a polyacrylamide gel was generated...
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