Arterial blood flow and transit delay measurement using arterial spin labeling
AssigneeThe Regents of the University of California
InventorsYoungkyoo Jung, Kun Lu
Life of this patent
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Abstract
Techniques and systems are disclosed for measuring arterial transit delay using pseudo- continuous arterial spin labeling (ASL) with variable TR and interleaved post-labeling delays. In one aspect, a magnetic resonance imaging method for measure arterial blood flow and transit delay using arterial spin labeling (ASL) includes applying an ASL pulse sequence. The ASL pulse sequence includes a pre- saturation pulse, and a labeling pulse. The method includes performing data acquisition to measure a transit delay, which represents a time needed for labeled blood to arrive in an imaging slice.
Claims16
A method of magnetic resonance imaging, the method comprising:
- measuring arterial blood flow and transit delay of a target tissue using arterial spin labeling (ASL), the measuring comprising:
- applying an ASL pulse sequence to the target tissue, the ASL pulse sequence comprising a pre-saturation pulse and a labeling pulse;
- and
- performing data acquisition, responsive to the applied ASL pulse sequence, to measure the transit delay, which represents a time needed for blood labeled by the labeling pulse to arrive in an imaging slice.
An system for performing magnetic resonance imaging (MRI), the system comprising:
- an MRI scanner configured to measure arterial blood flow and transit delay of a target tissue using arterial spin labeling (ASL), wherein the MRI scanner is configured to:
- apply an ASL pulse sequence to the target tissue, the ASL pulse sequence comprising a pre-saturation pulse and a labeling pulse;
- and
- perform data acquisition, responsive to the applied ASL pulse sequence, to measure the transit delay, which represents a time needed for blood labeled by the labeling pulse to arrive in an imaging slice.
A non-transitive computer readable medium embodying instructions configured to cause a magnetic resonance imaging scanner to perform operations comprising:
- measuring arterial blood flow and transit delay of a target tissue using arterial spin labeling (ASL) comprising:
- applying an ASL pulse sequence to the target tissue, the ASL pulse sequence comprising a pre-saturation pulse and a labeling pulse;
- and
- performing data acquisition, responsive to the applied ASL pulse sequence, to measure the transit delay, which represents a time needed for blood labeled by the labeling pulse to arrive in an imaging slice.
Dependencies are inferred from the claim text.