A HIFU compatible receiving coil for MRI radio-frequency signals has an
antenna and an amplifier connected to each other, each for receiving and
amplifying MRI radio-frequency signals, and a filter positioned in front
of the amplifier for filtering the HIFU low frequency signals received by
the antenna at the same time as receiving the MRI radio-frequency
signals. In a method for receiving the MRI radio-frequency signals and
then for amplifying the same, the received MRI radio-frequency signals
are filtered before being amplified, so as to filter out the HIFU signals
received at the same time as the MRI radio-frequency signals. By this
filtering, the HIFU signals among the HIFU signals and MRI
radio-frequency signals simultaneously received by the antenna are
filtered out at the same time as the HIFU treatment, and the remaining
MRI radio-frequency signals are connected into the MRI system after being
amplified by the amplifier for real-time imaging. Since the amplifier
only processes the MRI radio-frequency signals, it can stay in a normal
linear working status to ensure the normal proceeding of the subsequent
real-time imaging.