Passive 3D Needle Tip Tracking in Freehand MR-Guided Interventions with Needle Model Visualization

被引：0

作者：

Schmitt, Sebastian ^{[1
]}

Sobotta, Christian ^{[1
]}

Choli, Morwan ^{[2
]}

Overhoff, Heinrich M. ^{[1
]}

机构：

[1] Univ Appl Sci, Westfal Hsch, Med Engn Lab, Gelsenkirchen, Germany

[2] MR Comp GmbH, Testing Serv MR Safety & Compatibil, Gelsenkirchen, Germany

来源：

BILDVERARBEITUNG FUR DIE MEDIZIN 2015: ALGORITHMEN - SYSTEME - ANWENDUNGEN | 2015年

关键词：

D O I：

10.1007/978-3-662-46224-9_17

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In freehand MR-guided interventions, the monitoring of the current needle position relative to the target is crucial. In this work, a method for fast passive needle tip tracking in 3D is presented. For a true-FISP sequence, it is shown that proper k-space sub-sampling and signal processing allow for an accurate estimation of the needle tip position. A reduction in scan time is achieved by drastically reducing the number of measurements. The calculated needle tip positions are superimposed on a pre-interventional 3D planning volume in form of a needle model to ensure a continuous monitoring of the current needle tip position.

引用

页码：89 / 94

页数：6

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