2013-099 – Immobilization board that would be positioned under patient’s pelvis. This would allow radiation therapist to tilt pelvis when aligning patient for treatment.
2012-134 – Shear wave produced by a focused ultrasound beam is used to evaluate tissue visco-elasticity, which are sensitive biomarkers of pathology. Shear waves thus produced are weak and attenuate quickly when propagating away from the push origin. We have proposed a method called CUSE where multiple unfocused push beams spaced out like a comb are used for shear wave production. Every pixel under... Read More
2012-057 – Shear wave is used to evaluate tissue visco-elasticity, which are sensitive biomarkers of pathology. In order to obtain a 2D ultrasound elastography, an ultrafast imager with a FRAME rate of several kHz is required to capture the fast moving shear waves. This is not feasible with traditional ultrasound imagers with a frame rate of less than 100 Hz where 2D images are formed LINE BY LINE. ... Read More
2011-274 – The invention uses ultrasound to measure the nonlinear mechanical properties of an object including those of biological tissues. This information can be used to detect abnormalities in tissues.
2011-210 – Multiple short-duration ultrasound push pulses are used to deform tissue. The duration and PRF (Pulse Repetition Frequency) of these push pulses are compatible with current ultrasound scanners because these pulses are comparable to Doppler pulses. The collective effect from many push pulses generates shear waves of high amplitude for elasticity imaging. Two shear waves are produced: one at... Read More
2011-026 – Propagation of shear wave (e.g., frequency dependent propagation speed and attenuation) in tissues is determined by mechanical properties of tissues. In ultrasound elasticity imaging, focused ultrasound beams are used to generate and detect shear waves in tissues. The 3D shape of the ultrasound beam can artificially increase measured shear wave speed in the transducer near field and... Read More
2011-002 – Nonfocused ultrasound waves are produced by merely transmitting long tonebursts on each of several elements in a linear or curved or phased array. This produces an unfocused beam. Shearwave can be imaged by beams from a two-dimensional array if a shearwave is produced in a rectangular section, then the shearwaves can propagate away from the rectangular section and can be imaged. The effect... Read More
2010-299 – Molecular breast imaging (MBI) is a molecular imaging technique that can be used for the detection of breast cancer. MBI can detect breast tumors not visible on mammography or ultrasound. MBI images usually take 5-10 minutes to acquire 1 view. A slant-hole collimator can be used to estimate tumor depth and enable tumor biopsy using a radiolabeled guide. However, the long imaging time of 5-10... Read More
2010-152 – A device and method for MRI in-scanner imaging of chronic exertional compartment syndrome (CECS) of the lower legs has been developed and validated.
2010-108 – SDUV is a non-invasive ultrasound technology that can qualify tissue stiffness and viscosity, which are sensitive indexes of pathology such as liver fibrosis. SDUV uses one long push toneburst of ultrasound followed by multiple detect pulses to generate and detect shear waves in tissue. Shear wave propagation information is used to estimate tissue stiffness and viscosity. The push-detect... Read More
2010-032 – A method for producing tissue motion with customized frequency content is described in which push pulses are designed using orthogonal basis functions which then produce desired tissue motion. The push pulses can be a sequence of long duration, in which case motion detection A-lines can be interleaved among the pulses. The result is a more efficient method of making tissue move with optimal... Read More
2010-026 – Accelerated MRI: A method is described for improving parallel acquisition along the longitudinal direction.
2009-366 – A method and system for producing 3-dimensional ultrasound images of a patient’s breast and also producing planar emission images from a radiopharmaceutical is described. The system allows perfect co-registration of both the ultrasound image and the emission image, thereby allowing comparison of anatomical and functional features of the breast tissue. The system comprises 3 primary components... Read More
2009-280 – Sonometry is real-time distance measurement between two piezoelectric crystals by the time of flight of an acoustic signal, transmitted by one and received by the other crystal. Three “locator” crystals define a plane. Another “navigator: crystal can be instantaneously spatially located by the distances from the "locator” crystals.
Further Development of System and Method for Overlaying Ultrasound Imagery on a Laparoscopic Camera Display
2008-313 – Software algorithm to fuse images and correct for distortion for overlaying ultrasound imagery on a laparoscopic camera.
2008-292 – Guiding catheters must be of sufficient stiffness to offer support during endovascular procedures, but must not be too stiff to track to their intended target. We describe a system with a relatively supple catheter that has a separate lumens or lumens within its walls, which do not communicate with the main, working lumen. The extra lumens can be used to place stiffening wires after the... Read More
2008-202 – Balloons are used to create cavities in bones for several applications, including cement injection. Current design features include initial placement of a cannula into the bone, through which the balloon is inserted. An alternative design would be to mount the balloon on the outside of the cannula itself, such that the balloon could simply be inflated once the cannula reaches its intended... Read More
2008-178 – A technique is described for MR imaging of an extended field of which uses a combination of multiple-fixed-station and continuously moving table acquisitions. This preserves the ability to perform acceleration techniques and also provides high time efficiency.
2002-167 – An RF coil with added coils which transmit only to reduce artifactual signals due to flow or poor magnet shim.