发明名称 |
METHOD AND SYSTEM FOR REAL-TIME COMPRESSION CORRECTION FOR TRACKED ULTRASOUND AND APPLICATIONS OF SAME |
摘要 |
A method for real-time correction of tissue compression for tracked ultrasound includes acquiring an ultrasound image of tissues of interest with an ultrasound probe having a probe surface, where the ultrasound probe is tracked to provide a position and an orientation of the probe surface of the ultrasound probe for the acquired ultrasound image; acquiring intraoperative measurements of the undeformed tissue surface; constructing a generic grid representation of tissues for use with a mathematical model of tissue biomechanics, where the generic grid representation is pre-aligned to the acquired ultrasound image by performing a calibration to the ultrasound probe; determining boundary conditions to the mathematical model represented by the generic grid representation; solving the mathematical model for 3D displacements in the generic grid representation of the tissues; and performing correction of tissue compression by using the reversed and interpolated 3D displacement field on the acquired ultrasound image. |
申请公布号 |
US2016048958(A1) |
申请公布日期 |
2016.02.18 |
申请号 |
US201514829494 |
申请日期 |
2015.08.18 |
申请人 |
Vanderbilt University |
发明人 |
Miga Michael I.;Pheiffer Thomas S. |
分类号 |
G06T7/00;G06T11/00;A61B8/08;A61B8/13;A61B8/00 |
主分类号 |
G06T7/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for real-time correction of tissue compression for tracked ultrasound, comprising:
acquiring an ultrasound image of tissues of interest with an ultrasound probe having a probe surface, wherein the ultrasound probe is tracked to provide a position and an orientation of the probe surface of the ultrasound probe for the acquired ultrasound image; acquiring intraoperative measurements of the undeformed tissue surface; constructing a generic grid representation of tissues for use with a mathematical model of tissue biomechanics, wherein the generic grid representation is pre-aligned to the acquired ultrasound image by performing a calibration to the ultrasound probe; determining boundary conditions to the mathematical model of tissue biomechanics represented by the generic grid representation; solving the mathematical model of tissue biomechanics for three-dimensional (3D) displacements in the generic grid representation of the tissues; and performing correction of tissue compression by using the reversed and interpolated 3D displacement field on the acquired ultrasound image. |
地址 |
Nashville TN US |