MAGNETIC RESONANCE APPARATUS AND PROGRAM

摘要

To select a channel adapted to detection of the position of a liver. The position “m” of the border between the liver and the lung is obtained from a profile. A sum Sliver of signal intensities in a liver region R1 and a sum Slung of signal intensities in a lung region R2 are calculated. After obtaining the sums Sliver and Slung of the signal intensities, Sliver and Slung are compared to determine whether Sliver is equal to or less than Slung. In the case where Sliver is equal to or less than Slung (Sliver≦Slung), a channel is not selected as a channel used at the time of detecting the position of the edge of the liver. On the other hand, in the case where Sliver is larger than Slung (Sliver>Slung), a channel is selected as a channel used at the time of detecting the position of the edge of the liver.

主权项

1. A magnetic resonance apparatus for obtaining a navigator signal generated from a navigator region including a first body site which moves and a second body site which moves by using a coil having a plurality of channels, comprising:
scan means for executing a first navigator sequence for obtaining a first navigator signal generated from the navigator region; profile generating means for generating a first profile expressing relation between each position in the navigator region and signal intensity, for each of the channels, on the basis of the first navigator signal received by each of the plurality of channels; means for obtaining a first region corresponding to the first body site in the first profile and a second region corresponding to the second body site in the first profile; and selecting means for selecting a channel used to obtain the position of the first body site from the plurality of channels on the basis of a feature amount of the signal intensity in the first region and a feature amount of the signal intensity in the second region.