Back to results
US 10,470,731 B2Granted
Bolus imaging
AssigneeSiemens Healthcare GmbH
InventorsJohn Christopher Rauch, Martin Trini
Life of this patent
Estimating the term…
Abstract
A system and method includes detection of a trigger event, automatic injection, in response to detecting the trigger event, of a bolus of contrast medium into a patient volume after expiration of a predetermined injection delay period, automatic acquisition, in response to detecting the trigger event, of a plurality of images after expiration of a predetermined imaging delay period, where two or more of the plurality of images comprise an image of the bolus at respective different locations within vasculature of the patient volume, generation of a composite image based on the plurality of images, the composite image including a representation of the vasculature of the patient volume, and display of the composite image.
Claims19
A system comprising:
- a processing unit to:
- detect a trigger event;
- in response to detection of the trigger event, automatically inject a bolus of contrast medium into a patient volume after expiration of a predetermined injection delay period;
- in response to detection of the trigger event, automatically acquire a plurality of images after expiration of a predetermined imaging delay period, two or more of the plurality of images comprising an image of the bolus at respective different locations within vasculature of the patient volume;
- and
- generate a composite image based on the plurality of images, the composite image including a representation of the vasculature of the patient volume;
- and
- a display to display the composite image,
- wherein detection of the trigger event comprises detection of a peak of an R-wave in a cardiac signal, wherein the imaging delay period is based on a time between the peak and the start of an S-T interval of the cardiac signal, and wherein the plurality of images are acquired during an S-T segment of the cardiac signal.
6 more elements
A method comprising:
- detecting a trigger event;
- in response to detecting the trigger event, automatically injecting a bolus of contrast medium into a patient volume after expiration of a predetermined injection delay period;
- in response to detecting the trigger event, automatically acquiring a plurality of images after expiration of a predetermined imaging delay period, two or more of the plurality of images comprising an image of the bolus at respective different locations within vasculature of the patient volume;
- generating a composite image based on the plurality of images, the composite image including a representation of the vasculature of the patient volume;
- and
- displaying the composite image,
- wherein the detecting the trigger event comprises detecting a peak of an R-wave in a cardiac signal, wherein the imaging delay period is based on a time between the peak and the start of an S-T interval of the cardiac signal, and wherein the plurality of images are acquired during an S-T segment of the cardiac signal.
4 more elements
A system comprising:
- a cardiac monitor to generate a cardiac signal based on electrical signals received from a patient;
- an x-ray detector and an x-ray source operable to acquire x-ray images;
- a contrast injector to inject a bolus of contrast medium into the patient;
- and
- a processing unit to:
- receive the cardiac signal from the cardiac monitor,
- detect a peak of an R-wave in a cardiac signal, wherein the plurality of images are acquired a trigger event;
- in response to detecting the peak, automatically injecting the bolus of contrast medium into the patient after expiration of a predetermined injection delay period;
- in response to detecting the peak, automatically acquiring a plurality of images during an S-T segment of the cardiac signal in response to expiration of a predetermined imaging delay period, the predetermined imaging delay period based on a time between the peak and a start of an S-T interval of the cardiac signal, where two or more of the plurality of images comprise an image of the bolus at respective different locations within vasculature of the patient;
- and
- generate a composite image based on the plurality of images, the composite image including a representation of the vasculature of the patient;
- and
- a display to display the composite image.
10 more elements
A system comprising:
- a processing unit to:
- detect a trigger event;
- in response to detection of the trigger event, automatically inject a bolus of contrast medium into a patient volume after expiration of a predetermined injection delay period;
- in response to detection of the trigger event, automatically acquire a plurality of images after expiration of a predetermined imaging delay period, two or more of the plurality of images comprising an image of the bolus at respective different locations within vasculature of the patient volume;
- and
- generate a composite image based on the plurality of images, the composite image including a representation of the vasculature of the patient volume;
- and
- a display to display the composite image,
- wherein the plurality of images are acquired from a first projection angle, and the processing unit further to:
- in response to detection of the trigger event, automatically acquire a second plurality of images from a second projection angle after expiration of the predetermined imaging delay period, two or more of the second plurality of images comprising an image of the bolus at respective different locations within vasculature of the patient volume;
- generate a second composite image based on the second plurality of images, the second composite image including a second representation of the vasculature of the patient volume;
- generate a first two-dimensional skeleton based on the representation of the vasculature of the patient volume;
- generate a second two-dimensional skeleton based on the second of the vasculature of the patient volume;
- and
- generate a three-dimensional skeleton of the vasculature based on the first two-dimensional skeleton and the second two-dimensional skeleton.
12 more elements
Dependencies are inferred from the claim text.