Systems and methods for gating an imaging device
First Claim
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1. A method of obtaining imaging data from a patient, the method comprising:
- receiving from a sensor that comprises at least one light emitter and a detector a plethysmographic signal that represents light that has been at least partially absorbed by tissue of the patient;
analyzing with a processor the plethysmographic signal to determine physiological process information; and
automatically gating an imaging device based at least in part on the physiological process information.
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Abstract
A method and system for automatically gating an imaging device is disclosed. Physiological process information of a patient may be derived from a plethysmographic signal, for example, by analyzing the plethysmographic signal transformed by a continuous wavelet transform. Other techniques for deriving physiological process information of a patient include, for example, analyzing a scalogram derived from the continuous wavelet transform. The physiological process information may be used to automatically gate imaging data acquired from an imaging device in order to synchronize the imaging data with the physiological process information.
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20 Claims
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1. A method of obtaining imaging data from a patient, the method comprising:
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receiving from a sensor that comprises at least one light emitter and a detector a plethysmographic signal that represents light that has been at least partially absorbed by tissue of the patient; analyzing with a processor the plethysmographic signal to determine physiological process information; and automatically gating an imaging device based at least in part on the physiological process information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for gating imaging data of a patient, the system comprising:
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a sensor attached to the patient capable of generating a plethysmographic signal that represents light that has been at least partially absorbed by tissue of the patient, wherein the sensor comprises at least one light emitter and a detector; an imaging device capable of generating an imaging signal; and a processor coupled to the sensor and to the imaging device capable of analyzing the plethysmographic signal to determine physiological process information, wherein the imaging device is automatically gated based at least in part on the physiological process information. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A non-transitory computer-readable medium for gating imaging data, the non-transitory computer-readable medium having computer program instructions recorded thereon for:
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receiving from a sensor that comprises at least one light emitter and a detector a plethysmographic signal that represents light that has been at least partially absorbed by tissue of the patient; analyzing a plethysmographic signal to determine physiological process information; and automatically gating an imaging device based at least in part on the physiological process information. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification