| 发明名称 | Magnetic resonance imaging method for the quantification of the T<sub>1 </sub>and/or T<sub>2 </sub>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. According to the 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 the unbalanced SSFP sequence, a first order SSFP FID signal (F1), a lowest order SSFP FID signal (F0), and a 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 | US9625547(B2) | 申请公布日期 | 2017.04.18 |
| 申请号 | US201313852239 | 申请日期 | 2013.03.28 |
| 申请人 | UNIVERSITATSSPITAL BASEL | 发明人 | Heule Rahel;Bieri Oliver |
| 分类号 | G01V3/00;G01R33/44;G01R33/561 | 主分类号 | G01V3/00 |
| 代理机构 | Sughrue Mion, PLLC | 代理人 | Sughrue Mion, PLLC |
| 主权项 | 1. A magnetic resonance imaging (MRI) method for the quantification of a longitudinal relaxation time T1 and/or a transverse relaxation time T2 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 a longitudinal relaxation time T1 and/or a transverse relaxation time T2 of the sample based on the F0-signal, the F1-signal and the F−1-signal. | ||
| 地址 | Basel CH | ||