Effect of ultrasonic transducer frequency on the registration of ultrasound to CT vertebral images

Diane M. Muratore; Jeannette L. Herring; Benoit M. Dawant; Robert L. Galloway Jr.

doi:10.1117/12.348642

21 May 1999 Effect of ultrasonic transducer frequency on the registration of ultrasound to CT vertebral images

Diane M. Muratore, Jeannette L. Herring, Benoit M. Dawant, Robert L. Galloway Jr.

Proceedings Volume 3661, Medical Imaging 1999: Image Processing; (1999) https://doi.org/10.1117/12.348642
Event: Medical Imaging '99, 1999, San Diego, CA, United States

Abstract

Researchers of computer-assisted surgical systems are seeking to reduce the invasiveness of spinal procedures through the use of intra-operative ultrasound (US). Given a favorable registration of vertebral US images to pre-operative CT scans, the individual vertebrae in physical space would be mapped to the patient's corresponding image space. In this work a method is proposed for transcutaneous localization of a lumbar vertebra in US images and a subsequent registration of vertebral surfaces from US and CT. In this study, US scans of a life-size plastic spine phantom were obtained using B-mode transducers of frequencies 3.5 and 4.5 MHz. The spine was immersed in a water tank and images from the L2 vertebra were captured in the transverse plane. A point-to-surface registration that is a modification of the Besl/McKay algorithm was applied to extracted US vertebral surface points and a triangulated surface representation of corresponding CT scans. The results of this registration have been qualitatively assessed, and both data sets visually algin along the entire L2 vertebra. Presently, more than 250,000 lumbo-sacral spinal surgeries are performed annually; consequently, minimizing the intervention in this region could have an extensive positive effect for both the procedure and the patient.

Citation Download Citation

Diane M. Muratore, Jeannette L. Herring, Benoit M. Dawant, and Robert L. Galloway Jr. "Effect of ultrasonic transducer frequency on the registration of ultrasound to CT vertebral images", Proc. SPIE 3661, Medical Imaging 1999: Image Processing, (21 May 1999); https://doi.org/10.1117/12.348642

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available