Medical imaging apparatus with a movement detection unit and a method for detecting patient movement
View Patent ↗A medical imaging apparatus includes a detector unit, a patient-receiving region enclosed by the detector unit in a cylindrical manner, and a movement detection unit. The movement detection unit has at least one acceleration sensor unit to detect movement of a patient. the at least one acceleration sensor unit has a fastening element to fasten the at least one acceleration sensor unit to a subregion of the patient relevant to a medical imaging examination.
1. A magnetic resonance imaging apparatus comprising:
a detector unit;
a patient-receiving region enclosed by the detector unit in a cylindrical manner; and
a movement detection unit comprising at least one acceleration sensor unit operable to detect movement of a patient, the at least one acceleration sensor unit comprising a fastening element operable to fasten the at least one acceleration sensor unit to a subregion of the patient relevant to a medical imaging examination.
2. The magnetic resonance imaging apparatus of claim 1 , wherein the at least one acceleration sensor unit comprises:
an acceleration sensor element disposed on a microchip.
3. The magnetic resonance imaging apparatus of claim 1 , wherein the at least one acceleration sensor unit comprises:
at least one acceleration sensor element operable to detect movement of the patient along a single spatial direction.
4. The magnetic resonance imaging apparatus of claim 1 , wherein the at least one acceleration sensor unit comprises:
at least one acceleration sensor element operable to detect movement of the patient along at least two different spatial directions.
5. The magnetic resonance imaging apparatus of claim 1 , wherein the at least one acceleration sensor unit comprises:
at least one energy supply unit.
6. The magnetic resonance imaging apparatus of claim 1 , wherein the fastening element comprises:
an adhesion layer.
7. The magnetic resonance imaging apparatus of claim 1 , wherein the movement detection unit comprises:
a data evaluation unit configured to evaluate movement data acquired via the at least one acceleration sensor unit.
8. The magnetic resonance imaging apparatus of claim 7 , wherein the at least one acceleration sensor unit is wirelessly connected to the data evaluation unit.
9. The magnetic resonance imaging apparatus of claim 8 , further comprising:
a system control unit configured to generate a trigger signal for medical image data acquisition as a function of the movement data evaluated by the data evaluation unit.
10. The magnetic resonance imaging apparatus of claim 8 , further comprising:
a system control unit configured to generate a correction factor for an evaluation of medical image data as a function of the movement data evaluated by the data evaluation unit.
11. The magnetic resonance imaging apparatus of claim 3 , wherein the at least one acceleration sensor unit comprises:
a further sensor element configured to detect a further patient parameter.
12. The magnetic resonance imaging apparatus of claim 4 , wherein the acceleration sensor unit comprises:
a further sensor element configured to detect a further patient parameter.
13. A medical imaging apparatus comprising:
a patient-receiving region; and
a movement detection unit comprising at least one micro-electro-mechanical (MEMS) acceleration sensor comprising:
a fastening element operable to fasten the at least one MEMS acceleration sensor to a subregion of a patient relevant to a medical imaging examination, and
wherein the movement detection unit is configured to convert energy of the medical imaging apparatus within the patient-receiving region into electricity.
14. The medical imaging apparatus of claim 13 , wherein the at least one MEMS acceleration sensor comprises:
at least one MEMS acceleration sensor element operable to detect movement of the patient along a single spatial direction.
15. The medical imaging apparatus of claim 13 , wherein the at least one MEMS acceleration sensor comprises:
at least one MEMS acceleration sensor element operable to detect movement of the patient along at least two different spatial directions.
16. The medical imaging apparatus of claim 13 , wherein the fastening element comprises:
an adhesion layer.
17. The medical imaging apparatus of claim 13 , further comprising:
a system control unit configured to generate a trigger signal for medical image data acquisition as a function of movement data evaluated by a data evaluation unit.
18. The medical imaging apparatus of claim 13 , further comprising:
a system control unit configured to generate a correction factor for an evaluation of medical image data as a function of movement data evaluated by a data evaluation unit.
19. The medical imaging apparatus of claim 13 , wherein the medical imaging apparatus is a positron emission tomography apparatus.
20. The medical imaging apparatus of claim 13 , wherein the medical imaging apparatus is a computed tomography apparatus.