X-ray photographing system

U.S. Patent Number: 5386450

Abstract: An X-ray photographing system obtains a temporal differential image from live images picked up with the position of a bed (5) on which a patient is laid being unchanged. The temporal differential image is stored in a third frame memory (12). According to the temporal differential image, a tracing unit (13) traces the flow at a contrast medium injected in the patient's blood vessels. A movement vector setting unit (14) sets movement vectors of the contrast medium. A movement decision unit (16) determines whether or not the bed must be moved according to a resultant vector obtained by adding the movement vectors together. The bed is moved according to the direction and size of a selected one of the movement vectors.

Inventors: Ozawa; Masahiro (Tochigiken, JP)

Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP)

Application Number: 08/108,301

Issued: 1995-01-31

Expired: 2007-01-31

Classes: 378/98.2 ; 348/E5.089; 378/177; 378/62; 378/98.11

Field of search: 378/98.2,98.11,98.12,177,62

Click the image above to view patent images at uspto.gov within a frame.

Click here for the fulltext page on uspto.gov within a frame.