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US 10,517,491 B2Granted
Cardiac phase-resolved non-breath-hold 3-dimensional magnetic resonance angiography
AssigneeThe Regents of the University of California
InventorsJ. Paul Finn, Peng Hu, Fei Han
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Abstract
3D cine MR angiography systems and methods are disclosed for use during the steady state intravascular distribution phase of ferumoxytol. The 3D cine MRA technique enables improved delineation of cardiac anatomy in pediatric patients undergoing cardiovascular MRI.
Claims28
A method for magnetic resonance angiography, comprising:
- administering an intravascular contrast agent to a human subject;
- acquiring a signal from a ventilatory support device coupled to the subject;
- acquiring cardiac magnetic resonance images of the subject using a respiratory-gated 3D CINE MRA sequence, wherein the respiratory-gated 3D CINE MRA sequence comprises a plurality of cardiac phases;
- regulating a respiratory pattern of the ventilatory support device;
- and
- respiratory gating the acquired cardiac magnetic resonance images as a function of the acquired signal, wherein respiratory gating the acquired cardiac magnetic resonance images comprises accepting or rejecting image data for each cardiac phase of the respiratory-gated 3D CINE MRA sequence.
3 more elements
A system for magnetic resonance angiography, comprising:
- a computer processor;
- and
- a memory storing instructions executable on the processor;
- the instructions, when executed, performing the steps comprising:
- acquiring a signal from a ventilatory support device coupled to a subject;
- acquiring cardiac magnetic resonance images of the subject using a respiratory-gated 3D CINE MRA sequence, wherein the respiratory-gated 3D CINE MRA sequence comprises a plurality of cardiac phases;
- regulating a respiratory pattern of the ventilatory support device;
- and
- respiratory gating the acquired cardiac magnetic resonance images as a function of the acquired signal, wherein respiratory gating the acquired cardiac magnetic resonance images comprises accepting or rejecting image data for each cardiac phase of the respiratory-gated 3D CINE MRA sequence.
6 more elements
A method for magnetic resonance angiography, comprising:
- administering an intravascular contrast agent to a human subject;
- acquiring a signal from a ventilatory support device coupled to the subject;
- acquiring cardiac magnetic resonance images of the subject using a respiratory-gated 3D CINE MRA sequence, wherein the respiratory-gated 3D CINE MRA sequence comprises a plurality of cardiac phases, and wherein the 3D CINE MRA sequence comprises an ECG-triggered spoiled gradient echo sequence;
- regulating a respiratory pattern of the ventilatory support device;
- and
- respiratory gating the acquired cardiac magnetic resonance images as a function of the acquired signal, wherein respiratory gating the acquired cardiac magnetic resonance images comprises accepting or rejecting image data for each cardiac phase of the respiratory-gated 3D CINE MRA sequence.
3 more elements
A system for magnetic resonance angiography, comprising:
- a computer processor;
- and
- a memory storing instructions executable on the processor;
- the instructions, when executed, performing the steps comprising:
- acquiring a signal from a ventilatory support device coupled to a subject;
- acquiring cardiac magnetic resonance images of the subject, using a respiratory-gated 3D CINE MRA sequence, wherein the respiratory-gated 3D CINE MRA sequence comprises a plurality of cardiac phases, and wherein the 3D CINE MRA sequence comprises an ECG-triggered spoiled gradient echo sequence;
- regulating a respiratory pattern of the ventilatory support device;
- and
- respiratory gating the acquired cardiac magnetic resonance images as a function of the acquired signal, wherein respiratory gating the acquired cardiac magnetic resonance images comprises accepting or rejecting image data for each cardiac phase of the respiratory-gated 3D CINE MRA sequence.
6 more elements
Dependencies are inferred from the claim text.