Transmitting signals in a medical imaging system

Patent metadata

Field	Value
Publication number	US-10178983-B2
Application number	US-201514975776-A
Country	US
Kind code	B2
Filing date	Dec 19, 2015
Priority date	Dec 19, 2014
Publication date	Jan 15, 2019
Grant date	Jan 15, 2019

Abstract

Apparatuses and a method are provided for transmitting signals in a medical imaging system. The method includes transmitting signals wirelessly between at least one receive facility and a facility of the imaging system via a radio network.

First claim

The invention claimed is:

1. A method for transmitting signals in a medical imaging system, the method comprising:
transmitting a first signal between at least one receiver and an imaging system device, the first signal being a command signal; and
transmitting a second signal between the at least one receiver and the imaging system device,
wherein transmitting the command signal and the second signal takes place wirelessly via a radio network, and
wherein transmitting the first signal and transmitting the second signal take place through the radio network within a shielded chamber of a magnetic resonance tomography system.

2. The method of claim 1 , wherein transmitting the command signal and the second signal comprises transmitting the command signal and the second signal wirelessly via a radio network in the form of a WLAN.

3. The method of claim 2 , wherein the WLAN has an overall bandwidth available of 6.75 GBit/second, a frequency of 60 GHz, or a combination thereof.

4. The method of claim 2 , wherein the WLAN uses local legal frequency bands by a channel management.

5. The method of claim 2 , wherein the WLAN uses IEEE 802.11ac or IEEE 802.11ad.

6. The method of claim 1 , wherein the medical imaging system comprises a magnetic resonance tomography system, and the at least one receiver comprises at least one antenna of a local coil.

7. The method of claim 1 , wherein the medical imaging system comprises a computer tomography (CT) device, an x-ray device, or a PET scanner.

8. The method of claim 1 , further comprising:
receiving, by the at least one receiver, signals coming from a patient; and
amplifying, analog-digital converting, or amplifying and analog-digital converting the received signals prior to sending the signal to an image processing unit of a magnetic resonance tomography system via a WLAN.

9. The method of claim 8 , wherein transmitting the first and second signals takes place during, after, or during and after a receive time frame of an analog-digital (AD) converter.

10. The method of claim 1 , wherein the radio network transmits signals bidirectionally between a local coil and an image processing unit.

11. The method of claim 1 , wherein the radio network transmits signals from a controller to a local coil, the signals triggering the local coil to deactivate, detune, to send signals, to switch on an energy-saving mode on at least one antenna, receive modules of the local coil, or the at least one antenna and the receive modules, or any combination thereof.

12. The method of claim 1 , wherein in a magnetic resonance tomography (MRT) transmit path of a magnetic resonance tomography system, the radio network transmits signals from a controller to a local coil, the signals triggering the local coil to send RF signals defined by the signals.

13. The method of claim 1 , wherein an overall bandwidth of the radio network available at a time instant for transmission of signals is less than all coil segments, antennas, or coil segments and antennas of a local coil.

14. The method of claim 1 , wherein transmitting the first and second signals is via directed or undirected free field transmission or guided waves.

15. The method of claim 1 , wherein the command signal contains an identification of connected antennas, usable antennas, or connected and useable antennas.

16. The method of claim 1 , wherein the command signal and the second signal contain data that specifies whether a local coil is disposed on an MRT couch, on a patient, on the MRT couch and on the patient, or at another location.

17. A medical imaging system comprising:
a local coil; and
an imaging processor configured to:
transmit a command signal to the local coil through a radio network within a shielded chamber of a magnetic resonance tomography system; and
receive a signal from the local coil through the radio network within the shielded chamber of the magnetic resonance tomography system.

18. The medical imaging system of claim 1 , wherein the radio network is a WLAN.

Assignees

• Demharter Nikolaus
• Siemens Ag

Inventors

• Demharter Nikolaus

Classifications

• G01R33/3692

  involving signal transmission without using electrically conductive connections, e.g. wireless communication or optical communication of the MR signal or an auxiliary signal other than the MR signal · CPC title

• G01R33/3621

  NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation · CPC title

• A61B6/032

  Transmission computed tomography [CT] · CPC title

• A61B6/037

  Emission tomography · CPC title

• A61B6/563 Primary

  involving image data transmission via a network · CPC title