Abstract: In a method and magnetic resonance apparatus wherein a homogenous magnetization is generated in a spatial examination volume of the apparatus during examination of a subject, individual resonator segments of a body coil, that are electromagnetically decoupled from each other, are separately activated by a control and evaluation device according to sets of predetermined segment-specific excitation parameters stored in the control and evaluation device. The resonator segments are temporally sequentially excited in an excitation sequence, using different excitation parameter sets with phase distributions of the nuclear magnetization distributions in the examination volume constructively superimposing to form a resulting homogenous entire nuclear magnetization distribution in the examination volume.

Abstract: In a method and magnetic resonance system for generating a homogenous, radio-frequency excitation field in a spatial examination volume of the magnetic resonance system for a subject examination, the magnetic resonance system having a body coil comprised of N resonator segments or groups and a control and evaluation device for the separate activation of the individual resonator segments electromagnetically decoupled from one another, separate excitation of each individual resonator segment using defined excitation parameters ensue with an examination subject located in the magnetic resonance system and the respective segment-specific or group specific magnetic field distributions in the examination volume are determined. The segment-specific or group-specific magnetic field distributions are computationally superimposed to determine a overall field distribution in the examination volume.

Abstract: An outer balloon is provided in the interior thereof with a coil conductor for a local endo coil for intracorporeal placement for recording magnetic resonance signals, which can be deployed for the purpose of receiving signals. In addition to the coil, a filling medium is fed into the balloon, so that the deployed coil conductor is surrounded at least in sections by at least one material having a dielectric constant ?r>1.

Abstract: In a method and magnetic resonance system for generating a homogenous, radio-frequency excitation field in a spatial examination volume of the magnetic resonance system for a subject examination, the magnetic resonance system having a body coil comprised of N resonator segments or groups and a control and evaluation device for the separate activation of the individual resonator segments electromagnetically decoupled from one another, separate excitation of each individual resonator segment using defined excitation parameters ensue with an examination subject located in the magnetic resonance system and the respective segment-specific or group specific magnetic field distributions in the examination volume are determined. The segment-specific or group-specific magnetic field distributions are computationally superimposed to determine a overall field distribution in the examination volume.