1
Robert Senzig
Hui David He, Hui Hu, Robert F Senzig, Gary R Strong, Guy M Besson, David M Hoffman, George E Seidenschnur, Armin H Pfoh, Jonathan A Murray, Thomas L Toth, Willi W Hampel: Scalable multislice imaging system. General Electric Company, Armstrong Teasdale, Christian G Cabou, Phyllis Y Price, March 6, 2001: US06198791 (20 worldwide citation)

The present invention is, in one aspect, an imaging system having a detector that has multiple detector cells extending along a z-axis, the detector being configured to collect multiple slices of data; and a scalable data acquisition system configured to convert signals from the detector to digital ...


2
Robert Senzig
Thomas L Toth, Robert F Senzig, Stanley H Fox, Robert Harry Armstrong: System and method of medical imaging having default noise index override capability. General Electric Company, Ziolkowski Patent Solutions Group SC, Michael A Della Penna, Carl B Horton, June 7, 2005: US06904127 (11 worldwide citation)

A system and method of medical imaging is designed to reduce a patient's X-ray exposure during scanning. The system automatically generates a default noise index from a received set of scan parameter values that specifies a desired tube current of an X-ray source to use during the scanning of a pati ...


3
Robert Senzig
Thomas L Toth, Robert F Senzig, Stanley H Fox, Robert Harry Armstrong: System and method of medical imaging having default noise index override capability. Ziolkowski Patent Solutions Group, May 22, 2003: US20030097062-A1

A system and method of medical imaging is designed to reduce a patient's X-ray exposure during scanning. The system automatically generates a default noise index from a received set of scan parameter values that specifies a desired tube current of an X-ray source to use during the scanning of a pati ...


4
Jonathan C Boomgaarden, Thomas L Toth, August O Englert: Collimation apparatus for x-ray beam correction. General Electric Company, Quarles & Brady, February 5, 1991: US04991189 (124 worldwide citation)

A computed tomography system corrects image errors resulting from misalignment of the fan beam as a result of placement of the x-ray tube, thermal drift of the x-ray tube anode of mechanical stresses of the gantry or x-ray tube. Misalignment is determined alternately by means of a z-axis offset dete ...


5
Thomas L Toth: Dynamic dose control in multi-slice CT scan. General Electric Company, Quarles & Brady, March 21, 1995: US05400378 (79 worldwide citation)

An x-ray CT system performs a multi-slice scan in which tube current is modulated to reduce the x-ray dose without increasing image noise. Scout data is acquired from which a relative attenuation function (RAF) is calculated to relate expected patient attenuation of the x-ray beam at each slice to a ...


6
Thomas L Toth: Variable dose application by modulation of x-ray tube current during CT scanning. General Electric Company, Quarles & Brady, January 3, 1995: US05379333 (73 worldwide citation)

An x-ray CT system modulates x-ray tube current as a function of gantry angle to reduce the total patient dose without significantly increasing image noise. A scout scan is performed to acquire attenuation data which enables an optimal current modulation profile to be calculated for each slice in th ...


7
Thomas L Toth, David M Hoffman: System and method of determining a user-defined region-of-interest of an imaging subject for x-ray flux management control. General Electric Company, Ziolkowski Patent Solutions Group SC, Michael A Della Penna, Carl B Horton, January 24, 2006: US06990171 (59 worldwide citation)

A system and method of diagnostic imaging is provided that includes positioning a subject in an imaging device, performing at least one scout scan, and marking a user-defined region-of-interest. An attenuation characteristic of an attenuation filter is then automatically adjusted based on the user-d ...


8
Michael F Gard, Stephen W Gravelle, Jiang Hsieh, Quan N Lu, John W Newman, Thomas L Toth, Michael A Wu: Alignment of an x-ray tube focal spot using a deflection coil. General Electric, Quarles & Brady, August 27, 1996: US05550889 (42 worldwide citation)

Precise alignment of the focal spot position on an x-ray CT system is achieved using a deflection coil that produces a magnetic field which acts on the electron beam path in the x-ray tube. A variable current power supply drives the deflection coil and is controlled by input signals to align the foc ...


9
Thomas L Toth, Jonathan R Schmidt: Modulation of x-ray tube current during CT scanning with modulation limit. General Electric Company, Quarles & Brady, September 12, 1995: US05450462 (37 worldwide citation)

An x-ray CT system modulates x-ray tube current as a function of gantry angle to reduce the total patient dose without significantly increasing image noise. A scout scan is performed to acquire attenuation data which enables an optimal current modulation profile to be calculated for each slice in th ...


10
Thomas L Toth, Eric J Tkaczyk, Jiang Hsieh: Method and apparatus of radiographic imaging with an energy beam tailored for a subject to be scanned. General Electric Company, Ziolkowski Patent Solutions Group SC, Michael A Della Penna, Carl B Horton, July 11, 2006: US07076029 (35 worldwide citation)

A method and apparatus for tailoring the profile of an x-ray beam for radiographic imaging for a specific subject is disclosed. The invention includes a filter assembly having a pair of filters, each of which may be dynamically controlled by a motor assembly during data acquisition. The filters are ...



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