Prediction of a likely contrast medium behavior
First Claim
1. A method for prediction of a likely contrast medium behavior for a contrast medium-assisted examination of an object under investigation, comprising:
- detecting, by a processor, during a first time period associated with a pre-measurement based on a defined examination protocol, patient-specific blood flow behavior data;
determining, by the processor, an individual impulse response function based on the blood flow behavior data associated with the pre-measurement;
detecting, by the processor, during the first time period, a pre-measured heart rate signal associated with the pre-measurement;
determining, by the processor, a heartbeat-related individual impulse response function based on the individual impulse response function and the pre-measured heart rate signal such that the heartbeat-related individual impulse response function represents the individual impulse response function depending on a heartbeat count;
detecting, by the processor, during a second time period after the first time period, a currently detected heart rate signal associated with the contrast medium-assisted examination; and
predicting, by the processor, the likely contrast medium behavior based on the heartbeat related individual impulse response function, a current examination protocol, and the currently detected heart rate signal.
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Abstract
A method is disclosed for the prediction of a likely contrast medium behavior for a contrast medium-assisted examination of an object under investigation. In an embodiment, the method includes detecting patient-specific blood flow behavior data in a pre-measurement making use of a defined examination protocol and determining an individual impulse response function from the blood flow behavior data; detecting a pre-measured heart rate signal associated with the pre-measurement; and predicting the likely contrast medium behavior based on the individual impulse response function, the pre-measured heart rate signal and a current examination protocol, and a currently detected heart rate signal. A method for activation of a medical imaging system is also disclosed. Also disclosed are a device for predicting a likely contrast medium behavior, a control device with a device of this type for an imaging system, and an imaging system with a control device.
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Citations
15 Claims
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1. A method for prediction of a likely contrast medium behavior for a contrast medium-assisted examination of an object under investigation, comprising:
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detecting, by a processor, during a first time period associated with a pre-measurement based on a defined examination protocol, patient-specific blood flow behavior data; determining, by the processor, an individual impulse response function based on the blood flow behavior data associated with the pre-measurement; detecting, by the processor, during the first time period, a pre-measured heart rate signal associated with the pre-measurement; determining, by the processor, a heartbeat-related individual impulse response function based on the individual impulse response function and the pre-measured heart rate signal such that the heartbeat-related individual impulse response function represents the individual impulse response function depending on a heartbeat count; detecting, by the processor, during a second time period after the first time period, a currently detected heart rate signal associated with the contrast medium-assisted examination; and predicting, by the processor, the likely contrast medium behavior based on the heartbeat related individual impulse response function, a current examination protocol, and the currently detected heart rate signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device configured to predict a likely contrast medium behavior for a contrast medium-assisted examination of an object under investigation, comprising:
a processor configured to, detect, during a first time period associated with a pre-measurement based on a defined examination protocol, patient-specific blood flow behavior data, determine an individual impulse response function based on the blood flow behavior data associated with the pre-measurement, detect, during the first time period, a pre-measured heart rate signal associated with the pre-measurement, determine a heartbeat-related individual impulse response function based on the individual impulse response function and the pre-measured heart rate signal such that the heartbeat-related individual impulse response function represents the individual impulse response function depending on a heartbeat count, detect, during a second time period after the first time period, a currently detected heart rate signal associated with the contrast medium-assisted examination, and predict, the likely contrast medium behavior based on the heartbeat related individual impulse response function, a current examination protocol, and the currently detected heart rate signal.
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13. A control device for an imaging system, comprising:
a device having a processor configured to predict a likely contrast medium behavior by, detecting or outputting a contrast medium administration start time point, detecting, during a first time period associated with a pre-measurement based on a defined examination protocol, patient-specific blood flow behavior data, determining an individual impulse response function based on the blood flow behavior data associated with the pre-measurement, detecting, during the first time period, a pre-measured heart rate signal associated with the pre-measurement, determining a heartbeat-related individual impulse response function based on the individual impulse response function and the pre-measured heart rate signal such that the heartbeat-related individual impulse response function represents the individual impulse response function depending on a heartbeat count, detecting, during a second time period after the first time period, a currently detected heart rate signal associated with the contrast medium-assisted examination, predicting, the likely contrast medium behavior based on the heartbeat related individual impulse response function, a current examination protocol, and the currently detected heart rate signal, and determining a reference time point for the imaging system based on the likely contrast medium behavior. - View Dependent Claims (14)
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15. A non-transitory computer readable medium including a computer program product, directly loadable into a memory store of a control system of an imaging system, the computer program product including program code segments that when executed by a processor in the control system, configures the processor to,
detect, during a first time period associated with a pre-measurement based on a defined examination protocol, patient-specific blood flow behavior data, determine an individual impulse response function based on the blood flow behavior data associated with the pre-measurement, detect, during the first time period, a pre-measured heart rate signal associated with the pre-measurement, determine a heartbeat-related individual impulse response function based on the individual impulse response function and the pre-measured heart rate signal such that the heartbeat-related individual impulse response function represents the individual impulse response function depending on a heartbeat count, detect, during a second time period after the first time period, a currently detected heart rate signal associated with a contrast medium-assisted examination, and predict, a likely contrast medium behavior based on the heartbeat related individual impulse response function, a current examination protocol, and the currently detected heart rate signal.
Specification