A NEW 3D LOCALIZATION TECHNIQUE USING QUADRATIC FIELD GRADIENTS

A new method of 3D spatial selection using pulsed quadratic field grad ients is presented. Like previous pulsed quadratic gradient methods th e new method requires only two RF pulses to achieve selection in three dimensions. Unlike previous methods, however, precise alignment of li near and quadratic gradient coils is not required. This characteristic allows the method to be used with small or surface quadratic gradient coils. The method is demonstrated on phantoms and rats.