X-ray CT Apparatus and exposure dose calculating method

Details X-ray CT Apparatus and exposure dose calculating method X-ray CT Apparatus and exposure dose calculating method

2005-10-11

2005-10-11

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S098000, C378S165000

Reexamination Certificate

active

06954513

ABSTRACT:
For the purpose of displaying a more accurate exposure dose value without imposing additional work on an imaging operator, an exposure dose calculating method in an X-ray CT apparatus comprises the steps of: inputting the age and a region to be examined of a subject; calculating the head or chest diameter of the subject based on the age and region to be examined of the subject input at the inputting step, and on statistics on the head or chest circumference of a human body; calculating an exposure dose of a phantom having a diameter equivalent to the calculated diameter of the head or chest, based on prior information on an exposure dose to a phantom having a predetermined diameter when a predetermined X-ray dose is applied to the phantom; and displaying the exposure dose value.

REFERENCES:
patent: 5379333 (1995-01-01), Toth
patent: 6141398 (2000-10-01), He et al.
patent: 6141402 (2000-10-01), Toth
patent: 6404844 (2002-06-01), Horiuchi et al.
patent: 2001-178713 (2001-07-01), None

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