@inbook {Ungi2014c,
	title = {Tracked Ultrasound in Navigated Spine Interventions},
	booktitle = {Spinal Imaging and Image Analysis},
	year = {2014},
	month = {12/2014},
	pages = {469-94},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	chapter = {15},
	address = {Cham, Switzerland},
	abstract = {<p>Ultrasound is an increasingly popular imaging modality in image-guided interventions, due to its safety, accessibility, and low cost. But ultrasound imaging\&nbsp;has a steep learning curve, and requires significant coordination skills from the operator. It is difficult to interpret cross-sectional anatomy in arbitrary angles, and\&nbsp;even more challenging to orient a needle with respect to the ultrasound plane. Position tracking technology is a promising augmentation method to ultrasound\&nbsp;imaging. Both the ultrasound transducer and the needle can be tracked, enabling computer-assisted navigation applications in ultrasound-guided spinal interventions.\&nbsp;Furthermore, the patient can also be tracked, which enables fusion of other imaging modalities with ultrasound. In this chapter, we first present the technical\&nbsp;background of tracked ultrasound. We will review how to build research systems from commercially available components and open-source software. Then we will\&nbsp;review some spine-related applications of tracked ultrasound modality, including procedural skills training, needle navigation for anesthesia, surgical navigation, and\&nbsp;other potential applications.</p>
},
	doi = {10.1007/978-3-319-12508-4_15},
	url = {http://link.springer.com/chapter/10.1007/978-3-319-12508-4_15},
	author = {Tamas Ungi and Andras Lasso and Gabor Fichtinger}
}
