1
Christopher Allen Nafis, Timothy Patrick Kelliher, William Edward Lorensen, Harvey Ellis Cline, David Egidio Altobelli, Ron Kikinis, Robert David Darrow, Charles Lucian Dumoulin: Computer graphic and live video system for enhancing visualization of body structures during surgery. General Electric Company, Lawrence P Zale, Marvin Snyder, April 21, 1998: US05740802 (271 worldwide citation)

An interactive surgery planning and display system mixes live video of external surfaces of the patient with interactive computer generated models of internal anatomy obtained from medical diagnostic imaging data of the patient. The computer images and the live video are coordinated and displayed to ...


2
Robert David Darrow, Charles Lucian Dumoulin, Steven Peter Souza: Imaging of interventional devices in a non-stationary subject. General Electric Company, Lawrence P Zale, Marvin Snyder, March 24, 1998: US05730129 (222 worldwide citation)

A tracking system monitors the position of a device within a subject and superimposes a graphic symbol on a diagnostic image of the subject. Registration of the tracked location with the diagnostic image is maintained in the presence of subject motion by monitoring subject motion and adjusting the d ...


3
Charles Lucian Dumoulin, Robert David Darrow: MRI guided ablation system. General Electric Company, Jean K Testa, Donald S Ingraham, June 12, 2001: US06246896 (136 worldwide citation)

An MRI system acquires NMR tracking data from a tracking coil imbedded in an ablation device which is guided by a physician using real time anatomic images produced from image data acquired by the MRI system. The same tracking coil is energized by an RF power source to deliver energy which ablates t ...


4
Charles Lucian Dumoulin, Richard Philip Mallozzi, Robert David Darrow, Harvey Ellis Cline, Renee Ann Guhde: System and method for interventional procedures using MRI. General Electric Company, Joseph J Christian, May 25, 2010: US07725157 (70 worldwide citation)

An imaging and interventional system and methods are provided. The system comprises an imaging device for acquiring volumetric image data for an anatomical region of interest, a catheter for acquiring electrophysiological (EP) measurements of the anatomical region of interest, the catheter having at ...


5
Charles Lucian Dumoulin, Robert David Darrow, Ronald Dean Watkins: Luminal diagnostics employing spectral analysis. General Electric Company, Jean K Testa, Donald S Ingraham, October 10, 2000: US06129667 (55 worldwide citation)

An invasive probe for determining the morphological characteristics of walls of a lumen employs a real-time tracking means and an optical spectral measurement means. As the probe is advanced within the lumen, the real-time tracking means provides three-dimensional coordinates of the probe's position ...


6
Charles Lucian Dumoulin, Robert David Darrow: High speed tracking of interventional devices using an MRI system. General Electric Company, Jean K Testa, Donald S Ingraham, September 11, 2001: US06289233 (54 worldwide citation)

An MRI system acquires NMR tracking data from a tracking coil imbedded in a medical device which is guided by a physician using real time anatomic images produced from image data acquired by the MRI system. A Hadamard magnetic resonance tracking sequence is used to update the tracking coil location ...


7
Robert David Darrow, Charles Lucian Dumoulin, Steven Peter Souza: Imaging of interventional devices during medical procedures. General Electric Company, Lawrence P Zale, Marvin Snyder, September 30, 1997: US05671739 (35 worldwide citation)

A tracking system monitors the position of a device within a subject and superimposes a graphic symbol on a diagnostic image of the subject. Registration of the tracked location with the diagnostic image is maintained in the presence of subject motion by monitoring subject motion and adjusting the d ...


8
Charles Lucian Dumoulin, Ronald Dean Watkins, Robert David Darrow, Steven Peter Souza: Optical coupling for invasive devices. General Electric Company, Lawrence P Zale, Marvin Snyder, March 16, 1999: US05882305 (35 worldwide citation)

An optical coupling is incorporated into an invasive device used in magnetic resonance (MR) imaging. The coupling is incorporated into the invasive device between an imaging or tracking RF coil, and the MR receiver. The optical coupling has a first transducer circuit coupled to the RF which converts ...


9
Charles Lucian Dumoulin, Robert David Darrow, William John Adams: Interactive digital arrow (darrow) three-dimensional (3D) pointing. General Electric Company, Lawrence P Zale, Marvin Snyder, December 2, 1997: US05694142 (32 worldwide citation)

An interactive three-dimensional (3D) pointing device for selecting points within a subject employs a tracking device which determines the position of the operator, a semi-transparent screen positioned by the operator and the subject and provides this information to a model workstation. The model wo ...


10
Robert David Darrow, Charles Lucian Dumoulin, Christopher Judson Hardy: Interactive MRI scan control using an in-bore scan control device. General ElectricCompany, Jean K Testa, Donald S Ingraham, August 14, 2001: US06275721 (28 worldwide citation)

A scan control device located in the bore of an MRI system magnet includes tracking coils and a display. Location and alignment of the scan control device is tracked by the MRI system using signals acquired from the tracking coils. These signals are also used to update the scan parameters such that ...