Interactive GPU-accelerated image reconstruction in cone-beam CT

Lars Hillebrand; Robert M. Lapp; Yiannis Kyriakou; Willi A. Kalender

doi:10.1117/12.812213

13 March 2009 Interactive GPU-accelerated image reconstruction in cone-beam CT

Lars Hillebrand, Robert M. Lapp, Yiannis Kyriakou, Willi A. Kalender

Proceedings Volume 7258, Medical Imaging 2009: Physics of Medical Imaging; 72582A (2009) https://doi.org/10.1117/12.812213
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

We offer a novel approach for real-time CT reconstruction with the possibility of interactively changing parameters like the position and orientation of the slice to arbitrary values by the user during the analysis. To achieve this, a new reconstruction, including backprojection, is done every time the user wants to see a different view (in contrast to computing a volume upfront). The reconstruction was implemented on a GPU (graphics processing unit) using OpenGL and provides near real-time performance with less than 20 ms reconstruction time for 512 × 512 images. With this approach the user is free to change parameters that are fixed when a conventional reconstruction is used. So he is free to set the position of the slice, its orientation and the voxel size to arbitrary values, or to select a different set of projections for a cardiac reconstruction. Thus the waiting time for the volume reconstruction is removed. Therefore our method is esp. promising for applications such as intra-operative CT and interventional CT.

Citation Download Citation

Lars Hillebrand, Robert M. Lapp, Yiannis Kyriakou, and Willi A. Kalender "Interactive GPU-accelerated image reconstruction in cone-beam CT", Proc. SPIE 7258, Medical Imaging 2009: Physics of Medical Imaging, 72582A (13 March 2009); https://doi.org/10.1117/12.812213

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