METHOD AND APPARATUS FOR OBTAINING THREE- DIMENSIONAL NMR VAS PHOTOGRAPHIC IMAGE AND STATIC TISSUE NMR PICTURE SIMULTANEOUSLY

摘要

PURPOSE: To obtain a movable spin-spectrum 3-dimensional nucleus magnetic resonance angiogram and a quiescent spin spectrum 3-dimensional NMR image of a certain tissue simultaneously by generating a differential data set with a response signal data subtracted which is gathered from a quiescent nucleus, an additional data set with response signal data taken off that is gained from a mobile nucleus, and a phase data set representing the direction of a pulse flow is reference to amplitude of a pulse flow. CONSTITUTION: The resultant second data set obtained from response signal 49b is subtracted from the first data set gained from a response signal 49a, providing a differential data set while the former is added to the first data set obtained from response signal 49a, providing an additional data set, and deriving the phase information denoting the flow in a flow-coded pulse direction upon being processed together with a first response signal 49a data set. Repeated processing of each data set is implemented in the same data read-out direction, providing three whole data sets, each having the information concerned with the amplitude and phase of a movable spin spectrum within the whole 3-dimensional volume of a certain tissue under examination, and another information related to the amplitude of a quiescent spin spectrum within the same volume.