Image quality analysis for dual energy subtraction imaging with a femtosecond laser-based hard X-ray source

Author

Ichalalene, Zahia ; Jiang, Zhiming ; Kieffer, Jean-Claude ; Dorchies, F. ; Krol, A. ; Chamberlain, C.C.

Author_Institution

Telobs Corp., Que., Canada

Volume

7

Issue

6

fYear

2001

Firstpage

912

Lastpage

917

Abstract

We present a study of image quality for dual energy subtraction imaging using an iodinated contrast agent and a femtosecond laser-based hard X-ray source. The INRS CPA laser (400 fs pulse focused on solid targets in a 3 μm spot at 4 × 10¹⁸ W cm^-2) was used to create a bright hard X-ray source (conversion efficiency of 10^-5 in the characteristic K_∝ line emission, 12 μm X-ray source diameter). A model of image quality has been developed and been benchmarked with specific experiments using specially made angiography phantoms

Keywords

X-ray production; angiocardiography; bremsstrahlung; diagnostic radiography; medical image processing; 400 fs; Gaunt factor; angiography phantoms; bright source; continuous bremsstrahlung; digital subtraction angiography; dual energy subtraction imaging; femtosecond laser-based hard X-Ray sources; femtosecond laser-produced plasmas; image quality; iodinated contrast agent; medical imaging; Angiography; Image analysis; Image converters; Image quality; Imaging phantoms; Optical imaging; Optical pulses; Solid lasers; X-ray imaging; X-ray lasers;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/2944.983293

Filename

983293