DocumentCode :
3091774
Title :
3D ultrasound assisted laparoscopic liver surgery by visualization of blood vessels
Author :
Zenbutsu, Satoki ; Igarashi, Tatsuo ; Nakamura, Ryosuke ; Nakaguchi, Takao ; Yamaguchi, Toru
Author_Institution :
Res. Center for Frontier Med. Eng., Chiba Univ., Chiba, Japan
fYear :
2013
fDate :
21-25 July 2013
Firstpage :
840
Lastpage :
843
Abstract :
Laparoscopic surgery remains a challenging procedure because visualization of the internal target organ cannot be achieved from the laparoscopic image. We have proposed a laparoscopic surgery support method relying on three-dimensional (3D) images reconstructed using a stereo laparoscope and a 3D ultrasound system. The aim of this study is to develop a visualization system providing depth information about blood vessels within the liver. The shape and depth information of blood vessels are then correctly superimposed on a 2D laparoscopic image on the basis following careful registration. The coordinates of the laparoscope and the ultrasound are registered by aligning the two 3D liver surface shapes obtained by a stereo laparoscope and an ultrasonic diagnostic equipment with a mechanically moved convex probe using multiple image processing techniques. Then, the shape and depth information within the liver are calculated, and color-coded blood vessel depth information is superimposed on the original 2D laparoscopic image. In a phantom experiment, the registered 3D images were the mean squared error (MSE) of 5.89 ± 3.11 mm. The 2D laparoscopic image was superimposed the color-coded depth of the blood vessels segmented from the 3D ultrasonic data. The calculation of depth information had the MSE of 1.88 ± 1.40 mm.
Keywords :
biomedical optical imaging; biomedical ultrasonics; blood vessels; endoscopes; image reconstruction; image registration; image segmentation; liver; mean square error methods; medical image processing; phantoms; stereo image processing; surgery; 2D laparoscopic image; 3D image registration; 3D images reconstruction; 3D liver surface shape alignment; 3D ultrasound assisted laparoscopic liver surgery; blood vessel segmention; blood vessel visualization; color-coded blood vessel depth information; image processing techniques; internal target organ visualization; mean squared error; phantom experiment; stereo laparoscope; Acoustics; Biomedical imaging; Blood vessels; Laparoscopes; Shape; Surface morphology; Three-dimensional displays; laparoscopic liver surgery; superimpose; three-dimensional registration; two-dimensional projection; visualization of blood vessels;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
ISSN :
1948-5719
Print_ISBN :
978-1-4673-5684-8
Type :
conf
DOI :
10.1109/ULTSYM.2013.0216
Filename :
6724823
Link To Document :
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