SHIKUI YAN
Pilots at Concord Farms Ln, Knoxville, TN
License number
Tennessee A5182998
Issued Date
May 2014
Expiration Date
May 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
813 Concord Farms Ln, Knoxville, TN 37934
Professional information
Laser System For Aligning A Bed Transport Mechanism In An Imaging System
US Patent:
2013032, Dec 12, 2013
Filed:
Jun 11, 2012
Appl. No.:
13/493083
Inventors:
Shikui Yan - Knoxville TN, US
Thomas Bruckbauer - Knoxville TN, US
Travis Pless - Lenoir City TN, US
Robert Scott Beach - Knoxville TN, US
Sam Griffin - New Taxewell TN, US
Thomas Bruckbauer - Knoxville TN, US
Travis Pless - Lenoir City TN, US
Robert Scott Beach - Knoxville TN, US
Sam Griffin - New Taxewell TN, US
Assignee:
SIEMENS MEDICAL SOLUTIONS USA, INC. - Malvern PA
International Classification:
G01B 11/14, G01B 11/26
US Classification:
356138, 356400
Abstract:
A system for aligning a bed of an imaging system with an imaging plane. The system includes a laser device which generates a laser beam and a target element having a target detecting surface. The system also includes a reflective element which receives the laser beam. The reflective element includes a reflective detecting surface for detecting a first position of the laser beam. A first parameter of the bed is adjusted until the laser beam is positioned on a first center portion of the reflective detecting surface. In addition, the laser beam is reflected to the target detecting surface to detect a second position of the laser beam. A second parameter of the bed is adjusted until the laser beam is positioned on a second center portion of the target detecting surface to orient the bed substantially perpendicular to the imaging plane.
Conical Water-Equivalent Phantom Design For Beam Hardening Correction In Preclinical Micro-Ct
US Patent:
2013002, Jan 31, 2013
Filed:
Mar 29, 2012
Appl. No.:
13/433361
Inventors:
Shikui Yan - Knoxville TN, US
Junjun Deng - Knoxville TN, US
Thomas Bruckbauer - Knoxville TN, US
Junjun Deng - Knoxville TN, US
Thomas Bruckbauer - Knoxville TN, US
Assignee:
SIEMENS MEDICAL SOLUTIONS USA, INC. - Malvern PA
International Classification:
G01D 18/00
US Classification:
2502521
Abstract:
Apparatuses, methods, and computer-readable mediums are provided that utilize a phantom to correct attenuation due to beam hardening. The phantom includes a calibration tip attached to a proximal end of a portion. The portion has a diameter that increases incrementally from the proximal end of the portion towards a distal end of the portion (e.g., a substantially conical shape, a substantially convex shape, a substantially concave shape, or a series of adjacent steps). In another embodiment, a method is provided in which the phantom is scanned and an image of the phantom is reconstructed. Thereafter, an x-ray path length and estimated attenuation coefficient are calculated. A sum of expected coefficients are also calculated. The calculations are used to generate an algorithm for beam hardening coefficients.
Shikui Yan
Location:
Knoxville, Tennessee Area
Industry:
Medical Devices