@conference {Boctor2004a,
	title = {CISUS: an integrated 3D ultrasound system for IGT using a modular tracking API},
	booktitle = {Medical Imaging 2004: Visualization, Image-Guided Procedures, and Display},
	volume = {5367},
	number = {1},
	year = {2004},
	pages = {247-256},
	publisher = {SPIE},
	organization = {SPIE},
	doi = {10 1117/12 537776},
	url = {http://link aip org/link/?PSI/5367/247/1},
	author = {Emad Boctor and Anand Viswanathan and Steve Pieper and Michael Choti and Russell H. Taylor and Ron Kikinis and Gabor Fichtinger},
	editor = {Robert L. Galloway, Jr.}
}
