Siemens Aktiengesellschaft

Siemens Medical Solutions Usa, Inc.

Vibhas Deshpande

Gerhard Laub

A system for fat signal suppression in MR imaging comprises an RF signal generator for generating RF pulses in an MR pulse sequence using one or more RF pulses for echo signal formation including, an RF excitation pulse and an RF refocusing pulse subsequent to said RF excitation pulse. A magnetic field slice select gradient generator generates first and second different slice select magnetic field gradients for corresponding use with the RF excitation pulse and the RF refocusing pulse, respectively, the first and second different slice select magnetic field gradients having substantially different amplitudes. An MR imaging control unit directs acquisition of MR imaging data having fat signal substantially suppressed using the generated RF pulses and different slice select magnetic field gradients.

System for fat suppression in MR image acquisition

In a method and system for displaying a medical image, a user defines three points in an anatomy of interest at different locations. A plane is then automatically generated from the three points.

Multi-planar reformating using a three-point tool

In a magnetic resonance imaging apparatus and a method for operating the apparatus, a trueFISP sequence is used, but is modified to employ non-selective, rectangular radio frequency pulses. The use of non-selective excitation pulses reduces the sensitivity to off-resonance and allows excitation to be achieved in a shorter time compared to selective excitation, thereby shortening the time between echoes and minimizing slice profile issues.

Magnetic resonance imaging method and apparatus with non-selective excitation of the examination subject

Systems and techniques for acquiring a medical image of a region of interest are described. A plurality of electromagnetic excitation pulses are applied to the region of interest according to predetermined parameters, and a predetermined delay period is introduced after which the longitudinal magnetization of a first species generated within the region of interest reaches zero and a longitudinal magnetization of a second species generated within the region of interest is in steady-state.

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Los Angeles, CA, United States of America

Vibhas Deshpande