Rapid sequence angiography with a 3D printed aneurysm phantom and an ultra-high frame rate imaging photon counting detector (PCD)

A. Shankar; J. Krebs; D. R. Bednarek; S. Rudin

doi:10.1117/12.2512888

15 March 2019 Rapid sequence angiography with a 3D printed aneurysm phantom and an ultra-high frame rate imaging photon counting detector (PCD)

A. Shankar, J. Krebs, D. R. Bednarek, S. Rudin

Author Affiliations +

Proceedings Volume 10953, Medical Imaging 2019: Biomedical Applications in Molecular, Structural, and Functional Imaging; 109530A (2019) https://doi.org/10.1117/12.2512888
Event: SPIE Medical Imaging, 2019, San Diego, California, United States

Abstract

Temporal and spatial details of vascular flow patterns and rates in neuro and cardio vascular pathology are difficult to evaluate even with so-called “real-time” 15 or 30 fps x-ray imaging using flat panel detectors (FPDs). Higher frame rates of 1000 fps with high spatial resolution of 100 um pixels can demonstrate vascular flow details previously unseen by any other means. A new ultra-high temporal and spatial resolution detector with the above capabilities, the XCounter’s Actaeon, is a direct conversion photon counting detector (PCD) with built-in electronic charge sharing correction and dual energy threshold settings. This PCD was used to image a 3D-printed realistic aneurysm flow phantom injected with both iodine and gas bubble contrast media. The flow patterns, including details of the vortex flow and velocities of individual gas bubbles, were recorded in a sequence of 1 ms images and compared with frames from standard 30 fps angiographic imaging where flow patterns were blurred and individual gas bubble movement could not be observed. Because of the low-energy threshold capability of the PCD, instrumentation noise was virtually negligible enabling quantum limited performance such that, at standard angiography dose rates for FPDs, the per frame noise quality for the 1 ms frames of the PCD sequences was acceptable. This resulted in a combination of temporal, spatial, and contrast resolution unseen previously.

Conference Presentation

Citation Download Citation

A. Shankar, J. Krebs, D. R. Bednarek, and S. Rudin "Rapid sequence angiography with a 3D printed aneurysm phantom and an ultra-high frame rate imaging photon counting detector (PCD)", Proc. SPIE 10953, Medical Imaging 2019: Biomedical Applications in Molecular, Structural, and Functional Imaging, 109530A (15 March 2019); https://doi.org/10.1117/12.2512888

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