Instrumentation And Current Results In Absorption Edge Fluoroscopy

C. A. Mistretta; F. Kelcz; M. G. Ort; M. P. Siedband; J. R. Cameron; A. B. Crummy; R. E. Polcyn

doi:10.1117/12.953903

1 May 1974 Instrumentation And Current Results In Absorption Edge Fluoroscopy

C. A. Mistretta, F. Kelcz, M. G. Ort, M. P. Siedband, J. R. Cameron, A. B. Crummy, R. E. Polcyn

Proceedings Volume 0043, Application of Optical Instrumentation in Medicine II; (1974) https://doi.org/10.1117/12.953903
Event: Application of optical Instrumentation in Medicine II, 1973, Chicago, United States

Abstract

The technique presented is an approach to absorption edge transmission imaging which eliminates the need for monoenergetic x-ray sources, detector scanning, and energy analysis of transmitted x-rays. Subtraction of images formed with heavily filtered x-ray beams peaked at energies above and below the K absorption edge is accomplished with image-intensified fluoroscopy equipment coupled to a pair of storage tubes. Images of iodine and xenon concentrations of 1 mg/cm² have been imaged in 15 cm phantoms in a few seconds. When automated, the system will provide similar sensitivity in 20 cm phantoms, with imaging times of 1 second or less with resolution of the order of 1 mm. Several preliminary images are presented which relate to possible future clinical studies.

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C. A. Mistretta, F. Kelcz, M. G. Ort, M. P. Siedband, J. R. Cameron, A. B. Crummy, and R. E. Polcyn "Instrumentation And Current Results In Absorption Edge Fluoroscopy", Proc. SPIE 0043, Application of Optical Instrumentation in Medicine II, (1 May 1974); https://doi.org/10.1117/12.953903

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KEYWORDS

Absorption

Iodine

Cerium

Fluoroscopy

X-rays

Tissues

Xenon

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