Radio-frequency coil array for resonance analysis
AssigneeAdvanced Imaging Research, Inc.
InventorRavi Srinivasan
Life of this patent
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Abstract
An RF coil array which includes first and second RF coils that are overlapped to eliminate their coupling (to maintain zero mutual inductance between them) through space, a third coil connecting the first and second coils such that there is no net coupling between the first two coils through the third coil, and in which all three coils are well isolated from one another at the resonance frequency or frequencies of interest.
Claims33
A radio-frequency (RF) coil array for resonance imaging/analysis, comprising:
- a first RF coil sensitive to RF signals produced during resonance imaging/analysis;
- a second RF coil located relative to the first RF coil with substantially no net coupling therebetween at a frequency or frequencies of the RF signals;
- and
- a third RF coil electrically connected and located relative to the first RF coil and the second RF coil such that there is substantially zero net current flow between the first RF coil and the second RF coil via the third RF coil, each of the first RF coil, second RF coil and third RF coil being substantially isolated from the other coils at the frequency or frequencies of the RF signals.
A radio-frequency (RF) coil array for resonance imaging/analysis, comprising:
- a first RF coil sensitive to RF signals produced during resonance imaging/analysis;
- a second RF coil located relative to the first RF coil with substantially no net coupling therebetween at a frequency or frequencies of the RF signals;
- and
- a third RF coil electrically connected and located relative to the first RF coil and the second RF coil such that there is substantially no net coupling between the first RF coil and the second RF coil via the third RF coil, each of the first RF coil, second RF coil and third RF coil being substantially isolated from the other coils at the frequency or frequencies of the RF signals.
A radio-frequency (RF) coil array for resonance imaging/analysis, comprising:
- a first RF coil sensitive to RF signals produced during resonance imaging/analysis;
- a second RF coil located relative to the first RF coil with substantially no net coupling therebetween at a frequency or frequencies of the RF signals;
- and
- a third RF coil located relative to the first RF coil and the second RF coil such that each of the first RF coil, second RF coil and third RF coil are substantially isolated from the other coils at the frequency or frequencies of the RF signals;
- wherein a field-of-view of the third RF coil substantially overlaps and is substantially similar to a combined field-of-view of the first and second RF coils.
A radio-frequency (RF) coil array for resonance imaging/analysis, comprising:
- a first RF coil sensitive to RF signals produced during resonance imaging/analysis;
- a second RF coil located relative to the first RF coil with substantially no net coupling therebetween at a frequency or frequencies of the RF signals;
- and
- a third RF coil located relative to the first RF coil and the second RF coil such that there is substantially no net coupling between the first RF coil and the second RF coil via the third RF coil, each of the first RF coil, second RF coil and third RF coil being substantially isolated from the other coils at the frequency or frequencies of the RF signals;
- wherein a field-of-view of the third RF coil substantially overlaps and is substantially similar or larger than a combined field-of-view of the first and second RF coils.
Dependencies are inferred from the claim text.