The effective Q of a capacitively coupled RF coil in a magnetic resonance imaging (or magnetic resonance spectroscopic imaging) system is controllably lowered from its intrinsic maximum value by controlling the impedance reflected across the coil via a tuning/matching network associated and located with...http://www.google.fr/patents/US5172061?utm_source=gb-gplus-shareBrevet US5172061 - Q control for capacitively coupled MRI/MRSI RF coil
Q control for capacitively coupled MRI/MRSI RF coil
