X-ray diagnosis apparatus with a function of x-ray fluoroscopy
AssigneeKabushiki Kaisha Toshiba
InventorMasahiko Ono
Life of this patent
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Abstract
An X-ray diagnosis apparatus and method for X-ray fluoroscopy in which the apparatus includes a generator, a detector, an integrator, a comparator, and a controller. In the apparatus and method, a first X-ray for the X-ray fluoroscopy is generated intermittently. A transmission X-ray transmitted through an object of the X-ray fluoroscopy is detected. X-ray transmission data obtained in a period of intermittent generation of the first X-ray is integrated and compared to a reference value. In response to the integrated X-ray transmission data reaching the reference value during the period of intermittent generation, intermittent generation of the first X-ray is disabled.
Claims10
An apparatus for X-ray fluoroscopy, comprising:
- a generator configured to generate X-rays for the X-ray fluoroscopy;
- a detector configured to detect transmission of the X-rays transmitted through an object of the X-ray fluoroscopy;
- an X-ray control unit configured to control the generator to generate a series of several pulses of the X-ray including a first pulse to establish at least one of an initial voltage and an initial current of the X-ray and to generate a second pulse having a shorter duration than the first pulse, said second pulse of the X-rays generated under the at least one of the initial voltage and the initial current of the first pulse to establish a pulse width.
An apparatus for X-ray fluoroscopy, comprising:
- a generator configured to generate X-rays for the X-ray fluoroscopy;
- a detector configured to detect transmission of the X-rays transmitted through an object of the X-ray fluoroscopy;
- and an X-ray control unit configured to control the generator to generate a first series of several pulses of the X-rays including a first pulse at a first intermittent rate and width to determine at least one of an initial voltage and an initial current of the X-ray and also to generate a second series of several pulses of the X-rays at a second intermittent rate wherein the first rate is greater than the second rate.
A method for producing an X-ray fluoroscopic image, comprising:
- generating X-rays for the X-ray fluoroscopy from a generator;
- detecting transmission of the X-rays transmitted through an object of the X-ray fluoroscopy;
- controlling the generator to generate a series of several pulses of the X-rays including a first pulse to establish at least one of an initial voltage and an initial current of the X-rays and to generate a second pulse having a shorter duration than the first pulse, said second pulse of the X-rays generated under the at least one of the initial voltage and the initial current of the first pulse to establish a pulse width.
A method for producing an X-ray fluoroscopic image, comprising:
- generating X-rays for the X-ray fluoroscopy from a generator;
- detecting transmission of the X-rays transmitted through an object of the X-ray fluoroscopy;
- controlling the generator to generate a first series of several pulses of the X-ray including a first pulse at a first intermittent rate and width to determine at least one of an initial voltage and an initial current of the X-rays;
- and controlling the generator to generate a second series of several pulses of the X-rays at a second intermittent rate wherein the first rate is greater than the second rate.
An apparatus for X-ray fluoroscopy, comprising:
- means for generating X-rays for the X-ray fluoroscopy;
- means for detecting transmission of the X-rays transmitted through an object of the X-ray fluoroscopy;
- means for controlling the means for generating to generate a series of several pulses of the X-rays including a first pulse to establish at least one of an initial voltage and an initial current of the X-rays and to generate a second pulse having a shorter duration than the first pulse, said second pulse of the X-rays generated under the at least one of the initial voltage and the initial current of the first pulse to establish a pulse width.
An apparatus X-ray fluoroscopy, comprising:
- means for generating X-rays for the X-ray fluoroscopy;
- means for detecting transmission of the X-rays transmitted through an object of the X-ray fluoroscopy;
- means for controlling the means for generating to generate a first series of several pulses of the X-rays including a first pulse at a first intermittent rate and width to determine at least one of an initial voltage and an initial current of the X-ray and also controlling the means for generating to generate a second series of several pulses of the X-rays, at a second intermittent rate wherein the first rate is greater than the second rate.
Dependencies are inferred from the claim text.