Tomosynthesis with shifting focal spot and oscillating collimator blades

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United States of America Patent

PATENT NO 9895115
SERIAL NO

15357857

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Abstract

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In a tomosynthesis system a static focal spot is moved in a direction opposite to and generally synchronized with the directional movement of an x-ray source and X-ray collimator blades are moved during each exposure in synchronization with the shifting of the static focal spot. The synchronized movement of the static focal spot, x-ray tube and collimator blades helps keep the effective focal spot fixed in space relative to the breast, detector or both during the entire duration of the exposure and keeps the x-ray field on the detector and breast static. The shifting collimator blades follow an oscillating pattern over the multiple x-ray exposures of a tomosynthesis scan.

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Patent Owner(s)

Patent OwnerAddress
HOLOGIC INC250 CAMPUS DRIVE MARLBOROUGH MA 01752

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Farbizio, Thomas Patterson, US 17 352
Jing, Zhenxue Chadds Ford, US 69 2918
Ren, Baorui Andover, US 66 3254
Smith, Andrew P Lexington, US 113 5871
Stein, Jay Boston, US 68 3778

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