Phase sensitive inversion recovery MRI with water/fat separation

US10359489B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Peter Boernert · Hamburg, DE
• Jinnan Wang · Nanjing, CN

Key dates

• Filing date: Dec 10, 2014
• Grant date: Jul 23, 2019
• Expiry date: Jul 7, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5602
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A phase sensitive inversion recovery (PSIR)-based MR imaging method of at least two chemical species having different MR spectra enables distinction between myocardial scar and myocardial triglyceride deposition. The method includes the steps of: a) generating echo signals at two or more different echo times by subjecting an object (10) positioned in the examination volume of a MR device (1) to an imaging sequence of RF pulses and switched magnetic field gradients, which imaging sequence is an inversion recovery sequence including an inversion RF pulse followed by an excitation RF pulse after an inversion recovery time; b) acquiring the echo signals; c) separating signal contributions of the at least two chemical species to the acquired echo signals; and d) reconstructing a phase-sensitive MR image (28, 29) from the signal contributions of at least one of the chemical species.