Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
X-ray CT scanner










Image Number 11 for United States Patent #5684855.

Only an umbra of an X-ray beam is allowed to enter a designated detecting device arrays of an X-ray detector, whereby stable and good X-ray detection signals and images are provided. Even if a focal spot in an X-ray tube shifts, occurrence of artifacts or shifts of CT numbers is prevented to improve image quality. An X-ray CT scanner comprises an X-ray tube and X-ray detector, which are opposed to each other with a patient lying down on a couchtop between them, and a pre-collimator inserted between the X-ray tube and patient for restricting the width in a slice direction of an X-ray beam irradiated by the X-ray tube. The X-ray detector consists of, for example, a two-dimensional detector in which a plurality of detecting device arrays are arranged in the slice direction, each detecting device array including a plurality of detecting channels. The scanner further comprises a unit for controlling the pre-collimator in a manner that a detecting device array designated among the plurality of detecting device arrays receives only an umbra of the X-ray beam. An X-ray CT image is reconstructed using data detected by the designated detecting device arrays.








 
 
  Recently Added Patents
Device to facilitate moving an electrical cable of an electric vehicle charging station and method of providing the same
Method and system for Bluetooth low power link layer connection setup
Opioid-ketamine and norketamine codrug combinations for pain management
Apparatus and method of managing radio bearer in wireless communication system
Systems and methods for picture based communication
Hair motion compositor system for use in a hair/fur pipeline
Anomalous data detection method
  Randomly Featured Patents
OLED phototherapy device
Isocarbacyclin derivatives as apoptosis inhibitors
Orientation of crystals
Luminaire for road lighting
Passenger restraint system
Signal separating apparatus, signal separating method, signal separating program and recording medium
Gun cleaning and tool case
Document targeting systems and methods
Confidence boost for automotive occupant classifications
Patterning method