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Multi-source low dose x-ray ct imaging aparatus

An irradiation dose and X-ray technology, applied in computerized tomography scanners, echo tomography, etc., can solve problems such as new trauma, liver cirrhosis, and pancreatic cancer in patients

Inactive Publication Date: 2013-07-03
FMI MEDICAL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, radiation exposure can increase a patient's risk of developing certain health problems, such as causing a patient to develop pancreatic cancer, increasing a patient's risk of developing cancer, new trauma, cirrhosis of the liver, or a condition requiring multiple CT scans

Method used

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  • Multi-source low dose x-ray ct imaging aparatus
  • Multi-source low dose x-ray ct imaging aparatus
  • Multi-source low dose x-ray ct imaging aparatus

Examples

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Embodiment Construction

[0029] According to some embodiments, a tomographic imaging system includes a plurality of low radiation dose X-ray sources. For example, these ray sources may be a pair of X-ray sources arranged at intervals along the Z-axis, configured to mainly generate overlapping fan-shaped ray beams, and the overlapping rays can basically completely cover the detector. Also, in some embodiments, the two anode radiation sources are switched on and off alternately so that only one anode radiation source is switched on at a time. Although the examples and illustrations herein discuss only one pair of anode radiation sources, some embodiments may include more than two anode radiation sources.

[0030] In some embodiments, suitable x-ray sources include a stationary anode vacuum tube. More specifically, some embodiments at θ, Or one or more directions in Z include a pair of such anode ray sources. In some embodiments where the ray sources are arranged at intervals along the Z direction, a...

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Abstract

Some embodiments include a low-dose CT apparatus. Such an apparatus can comprise a plurality of x-ray sources disposed on a gantry and spaced apart along a z-axis. The sources may be configured to produce substantially overlapping fan beams, wherein overlap is substantially complete at a detector surface. Some embodiments also include a controller in electronic communication with the plurality of x-ray sources. The controller may be adapted to switch the plurality of x-ray sources between on and off states such that only one x-ray source is in an on state at any time. Furthermore, the controller circuit may be in electronic communication with at least one x-ray detector and may be adapted to synchronize the x-ray detector with the plurality of x-ray sources such that detected x-rays can be matched to an x-ray source.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Copending Provisional Patent Application (Application No. 61 / 391,621; Filing Date: October 9, 2010), which is hereby incorporated by reference in its entirety. technical field [0003] The present invention generally relates to low dose X-ray sources for use in X-ray computed tomography systems. Background technique [0004] In general, X-ray computed tomography (CT) is performed using an X-ray source (such as a rotating anode ray source) mounted on a gantry with one or more X-ray scintillation detectors arranged opposite it . The gantry usually has a central hole that accommodates the patient between the radiation source and the detector. In this way, the detector can measure the attenuated X-ray intensity pattern of the X-ray beam from the radiation source after passing through the patient. Typically, the radiation source and detectors on the gantry rotate around the patient....

Claims

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Application Information

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IPC IPC(8): A61B6/03
Inventor 威廉·K·麦克罗斯基克莱斯特·H·海普蒂莫西·W·米立夫
Owner FMI MEDICAL SYST CO LTD