@conference {Boctor2003a,
	title = {Tracked 3D ultrasound in radio-frequency liver ablation},
	booktitle = {Medical Imaging 2003: Ultrasonic Imaging and Signal Processing},
	volume = {5035},
	number = {1},
	year = {2003},
	pages = {174-182},
	publisher = {SPIE},
	organization = {SPIE},
	doi = {10 1117/12 479952},
	url = {http://link aip org/link/?PSI/5035/174/1},
	author = {Emad Boctor and Gabor Fichtinger and Russell H. Taylor and Michael Choti},
	editor = {William F. Walker and Michael F. Insana}
}
