发明名称 |
BIOMECHANICALLY DRIVEN REGISTRATION OF PRE-OPERATIVE IMAGE TO INTRA-OPERATIVE 3D IMAGES FOR LAPAROSCOPIC SURGERY |
摘要 |
A computer-implemented method of using a biomechanical model to constrain registration of a pre-operative image of an anatomical area of interest to an intra-operative image of the anatomical area of interest begins by initializing a plurality of model parameters comprising biomechanical parameter values. Then, an iterative optimization process is performed a plurality of times. During this iterative process, a biomechanical displacement field is generated by applying the biomechanical model to the pre-operative image using the plurality of model parameters. Next, the biomechanical displacement field is applied to the pre-operative image to generate a biomechanically deformed pre-operative image. The biomechanically deformed pre-operative image is compared with the intra-operative image to yield a similarity measurement value. Using the similarity measurement value, the plurality of model parameters are updated for a subsequent iteration. Once the iterative optimization process is complete a diffeomorphic registration of the biomechanically deformed pre-operative image to the intra-operative image is performed. Then, the biomechanically deformed pre-operative image is present overlaying the intra-operative image on a display. |
申请公布号 |
WO2014127321(A3) |
申请公布日期 |
2014.10.16 |
申请号 |
WO2014US16686 |
申请日期 |
2014.02.17 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT;SIEMENS CORPORATION |
发明人 |
OKTAY, OZAN;ZHANG, LI;MOUNTNEY, PETER;MANSI, TOMMASO;MEWES, PHILIP |
分类号 |
G06T7/00 |
主分类号 |
G06T7/00 |
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