Koninklijke Philips Corporation N.V.

Michael J Petrilo

Jens Wiegert

Matthias Bertram

David Sowards-Emmerd

John Vesel

When generating a 3D image of a subject or patient, a cone beam X-ray source () is mounted to a rotatable gantry () opposite an offset flat panel X-ray detector (). A wedge-shaped attenuation filter () of suitable material (e.g., aluminum or the like) is adjustably positioned in the cone beam to selectively attenuate the beam as a function of the shape, size, and density of a volume of interest () through which X-rays pass in order to maintain X-ray intensity or gain at a relatively constant level within a range of acceptable levels.

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Pleasanton, CA, United States of America

Michael J Petrilo