Method for operating a magnetic resonance imaging apparatus to obtain a high T.sub.2 contrast

US5523688A · kind A · utility

Assignees

• Oliver Heid · DE
• Michael Deimling · DE

Inventors

• Oliver Heid · Erlangen, DE
• Michael Deimling · Baiersdorf, DE

Key dates

• Filing date: Jul 13, 1994
• Grant date: Jun 4, 1996
• Expiry date: Jul 13, 2014

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/4835
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Nuclear spins are excited in an examination subject by a sequence of radio-frequency pulses that are emitted in under the influence of slice selection gradients, with n different slices of the examination subject being excited. Due to read-out gradients, n gradient echoes respectively allocated to a slice are generated such that each gradient echo allocated to a radio-frequency pulse comes to lie between two successive radio-frequency pulses. Further slices can thus be excited within the echo time of a gradient echo of a specific slice. A T.sub.2.sup.* contrast image can thus be obtained with a significantly shorter examination time than was heretofore achievable.