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Device for a computer tomography gantry for transmitting data

A technology of tomography and data transmission, which is applied in the direction of radiological diagnostic equipment, radiological diagnostic data transmission, diagnosis, etc., and can solve problems such as the influence of image processing

Inactive Publication Date: 2011-05-04
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result of this, the image processing of the computed tomography system may suffer due to insufficient detection of the precise position of the rotating part of the gantry and the precise rotational speed of the rotating part of the gantry relative to the stationary part of the gantry

Method used

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  • Device for a computer tomography gantry for transmitting data
  • Device for a computer tomography gantry for transmitting data
  • Device for a computer tomography gantry for transmitting data

Examples

Experimental program
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Embodiment Construction

[0107] In rotating systems, such as CT system gantry, round, closed and slotted hollow conductors (waveguides) can be used to achieve low latency or no response time data transfer between the rotating and non-rotating sides. A pulsed mode wave with a defined frequency can be sent by the transmitter. The receiver measures this signal, either as two single pulses or as one pulse with very high amplitude. Depending on the position of the transmitter of the gantry, these alternating kinds of pulses can occur. Highly accurate rotational speed measurement is possible by intensity measurements of received pulses or by detuning the transmitter and receiver frequencies and measuring interfering pulses.

[0108] figure 1 A hollow conductor (waveguide) 104 is shown, in which two different positions (position 1, position 2) 102, 103 of the same transmitter are depicted. Starting from the transmitter at position 1 103, the first wave travels toward the receiver 106 in a clockwise direct...

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PUM

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Abstract

The invention provides a device for a computer tomography gantry (91) for transmitting data, wherein the gantry comprises a stationary part (92) and a rotary part (93). The device is adapted to transmit the data between the stationary part of the gantry (92) and the rotary part (93) of the gantry (91). The device comprises a hollow conductor (104, 204, 308) which is adapted to guide a first wave,a sender (102, 103) which is adapted to send the first wave inside the hollow conductor and a receiver (106) which is adapted to receive the first wave after a runtime inside the hollow conductor (104, 204, 308). A further aspect of the invention is a computer tomography gantry (91) comprising a device according to the inventive concept. Using the described device allows to transmit data between the rotary (93) and the stationary part (92), to measure a rotating speed of the rotary part (93) and to measure a position of the rotary part (93) with respect to the stationary part (92).

Description

technical field [0001] The invention relates to a device for a computer tomography gantry for transmitting data and a computer tomography gantry comprising such a device. Background technique [0002] When acquiring X-ray images with a computed tomography apparatus with a rotatable gantry, precise measurements of gantry position and velocity are important for correct image reconstruction. In previous systems, rotational position and velocity were measured by counting marks on the gantry rotor. This approach may be of lower quality in terms of precision. As a result of this, the image processing of the computed tomography system may be affected because of deficiencies in detecting the precise position of the rotating part of the gantry and the precise rotational speed of the rotating part of the gantry relative to the stationary part of the gantry. [0003] Additionally, it may be desirable to provide broadband data transmission between the rotating portion of the gantry an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00
CPCA61B6/035A61B6/547A61B6/56
Inventor M·C·乌尔班C·赛法特G·J·舍尔H·W·L·A·M·范列罗普
Owner KONINK PHILIPS ELECTRONICS NV