RF coil and magnetic resonance imaging apparatus
AssigneesMitsuru Tamura, Akira Nabetani, GE Yokogawa Medical Systems, Limited
InventorsMitsuru Tamura, Akira Nabetani
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Abstract
For the purpose of enabling proper imaging of the prostate, a first saddle coil 210 having two loop portions of a geometry suited for sandwiching the lower abdomen of a human body from the anterior and posterior sides with the two loop portions facing each other, and a second saddle coil 310 having two loop portions of a geometry suited for allowing the lower limbs of the human body to be inserted into the two loop portions, and sandwiching the lower abdomen from the right and left sides with the two loop portions facing each other, are quadrature-arranged so that the phases of magnetic resonance received signals are different by 90°, thus achieving imaging of the lower abdomen of the human body with a high S/N.
Claims8
An RF coil comprising:
- a first saddle coil having two loop portions of a geometry suited for sandwiching the lower abdomen of a human body from the anterior and posterior sides with the two loop portions facing each other;
- and
- a second saddle coil having two loop portions of a geometry suited for allowing the lower limbs of the human body to be inserted into the two loop portions, and sandwiching the lower abdomen from the right and left sides with the two loop portions facing each other.
An RF coil comprising:
- a first coil pair comprised of two loops of a geometry suited for sandwiching the lower abdomen of a human body from the anterior and posterior sides with the two loops facing each other;
- and
- a second coil pair comprised of two loops of a geometry suited for allowing the lower limbs of the human body to be inserted into the two loops, and sandwiching the lower abdomen from the right and left sides with the two loops facing each other.
A magnetic resonance imaging apparatus having:
- static magnetic field generating means for generating a static magnetic field in a space for accommodating a subject to be imaged;
- gradient magnetic field generating means for generating a gradient magnetic field in said space;
- RF signal transmitting/receiving means for transmitting an RF signal to said space and receiving an RF signal from said space;
- and
- image producing means for producing an image based on said received RF signal, characterized in that said RF signal transmitting/receiving means comprises:
- a first saddle coil having two loop portions of a geometry suited for sandwiching the lower abdomen of a human body from the anterior and posterior sides with the two loop portions facing each other;
- a second saddle coil having two loop portions of a geometry suited for allowing the lower limbs of the human body to be inserted into the two loop portions, and sandwiching the lower abdomen from the right and left sides with the two loop portions facing each other;
- driving means for driving said first and second saddle coils in a quadrature scheme;
- and
- combining means for combining two RF signals respectively received by said first and second saddle coils in a quadrature scheme.
Dependencies are inferred from the claim text.