| 发明名称 |
Systems and methods for magnetic resonance angiography |
| 摘要 |
Systems and methods for Magnetic Resonance Angiography (MRI) are provided. One method includes obtaining Magnetic Resonance (MR) velocity data and determining a distance map for one or more vessels to define a distance path. The method also includes calculating, using the MR velocity data, at a plurality of time intervals and for a plurality of pixels (i) a distance traveled during a current time interval as a current distance traveled, wherein a total distance traveled is incremented by the current distance traveled and (ii) a bolus signal using a bolus signal profile, the distance path and total distance traveled, wherein a current time interval is incremented by a defined time step. |
| 申请公布号 |
US9014781(B2) |
申请公布日期 |
2015.04.21 |
| 申请号 |
US201213451178 |
申请日期 |
2012.04.19 |
| 申请人 |
General Electric Company |
发明人 |
Tan Ek Tsoon;Foo Thomas Kwok-Fah;Ho Vincent B. |
| 分类号 |
A61B5/055;A61B5/026 |
主分类号 |
A61B5/055 |
| 代理机构 |
|
代理人 |
Dobson Melissa K. |
| 主权项 |
1. A non-transitory computer readable storage medium for Magnetic Resonance Angiography (MRA) using a processor, the non-transitory computer readable storage medium including instructions to command the processor to:
obtain Magnetic Resonance (MR) velocity data; determine a distance map for one or more vessels to define a distance path; calculate, using the MR velocity data, at a plurality of time intervals and for a plurality of pixels (i) a distance traveled during a current time interval as a current distance traveled, wherein a total distance traveled is incremented by the current distance traveled and (ii) a bolus signal using a bolus signal profile, the distance path and total distance traveled, wherein a current time interval is incremented by a defined time step; and display a sequence of images at different time points that depict the filling of a vessel as a function of time based on the bolus signal. |
| 地址 |
Niskayuna NY US |
