PURPOSE: To obtain an image with satisfactory S/N in the inspection of mammary cancer by constituting a coil with plural loop-shape coil pieces, setting the neighboring direction of a counter coil piece in which a current on each loop can be conducted in a reverse direction orthogonally to a body axis direction, and providing a recessed part.

CONSTITUTION: The coil formed so as to form rectangular shape by making two loop shape coils 3 whose current directions are formed so as to be set in the reverse direction creep so that a coil conductor creeps at a part B along the recessed part 1 and the part other than that creeps at the plane position part A of hard sponge 2 at the coil neighboring part is adhered on the hard sponge 2 having two, right and left recessed parts 1. An upper plane is provided with a recessed part 4 where breasts can be inserted, and soft sponge 6 having a projecting part 5 insertable so as not to generate the gap of the recessed part 1 of the hard sponge 2 is adhered on a lower plane, which sets it as the coil for the breasts. Thereby, the recessed part 1 can be matched with the shape of the breasts, and the breasts can be approached to the conductor of a neighboring conductor, and the image with the satisfactory S/N can be obtained, and photography at natural shape can be performed without pressurizing the breasts, and sensitivity distribution in a depth direction can be extended, and the coil most suitable for the breasts required for sensitivity in the depth direction can be obtained.