| 发明名称 |
MAGNETIC RESONANCE IMAGING METHOD FOR THE QUANTIFICATION OF THE T1 AND/OR T2 RELAXATION TIMES IN A SAMPLE |
| 摘要 |
A magnetic resonance imaging (MRI) method for the quantification of the longitudinal (T1) and/or transverse (T2) relaxation times in a sample is provided. According to this MRI method a sample is subjected to an unbalanced steady state free precession (SSFP) sequence comprising a series of consecutive radiofrequency (RF) pulses. By means of this unbalanced SSFP sequence, the first order SSFP FID signal (F1), the lowest order SSFP FID signal (F0), and the lowest order SSFP Echo signal (F−1) are acquired. Based on the F0-signal, the F1-signal and the F−1-signal the longitudinal (T1) and/or transverse (T2) relaxation times of the sample are determined. |
| 申请公布号 |
US2014292325(A1) |
申请公布日期 |
2014.10.02 |
| 申请号 |
US201313852239 |
申请日期 |
2013.03.28 |
| 申请人 |
HEULE Rahel;BIERI Oliver |
发明人 |
HEULE Rahel;BIERI Oliver |
| 分类号 |
G01R33/44 |
主分类号 |
G01R33/44 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A magnetic resonance imaging (MRI) method for the quantification of the longitudinal (T1) and/or transverse (T2) relaxation times in a sample, comprising at least the following steps:
subjecting a sample to an unbalanced steady state free precession (SSFP) sequence comprising a series of consecutive radiofrequency (RF) pulses; acquiring a first order SSFP FID signal (F1); acquiring a lowest order SSFP FID signal (F0); acquiring a lowest order SSFP Echo signal (F−1); and determining the longitudinal (T1) and/or transverse (T2) relaxation times of the sample based on the F0-signal, the F1-signal and the F−1-signal. |
| 地址 |
Mohlin CH |
