Hologic, Inc.

Brad Polischuk

Douglas D Myers

Dhruvish Sudhirbhai Shah

Eugene Palecki

Anthony Celona

Glenn Walker

Cornell Lee Williams

Shusheng He

Tuan Huynh

Douglas Myers

A medical imaging system that includes a contoured radiation detector configured to receive radiation emitted from a radiation source after the radiation has passed through at least a portion of a patient. The contoured radiation detector includes a gate-wall end and lateral sides, including a right-hand side and a left-hand side. The contoured radiation detector may also includes a superior surface connected to the gate-wall end, right-hand side, and the left-hand side. The contoured radiation detector further includes a chest-wall surface, the chest-wall surface connected to the superior surface, the right-hand side, and the left-hand side, whereby the curvature is contoured to a chest wall of the patient. The system may also include an anti-scatter grid having a chest-wall surface with a similar curvature as the chest-wall surface of the contoured radiation detector.

Medical imaging system with contoured detector

Radiographic imaging techniques include the use of an exposure sequence having a plurality of specimen exposure windows. The plurality of specimen exposure windows have a total exposure time period that satisfies a desired exposure time. The plurality of exposure frames resulting from the plurality of specimen exposure windows are summed to form an output frame. The output frame is provided as output.

Systems and methods for mitigating imaging artifacts

In association with an imaging device which generates a portion of an image from a plurality of channels within a first row by sampling each channel during a sampling time corresponding to the channel, circuitry offsets sampling times of at least first and second channels within the first row, thereby reducing noise correlation between the first and second channels in the first row. Pixel sampling times may be defined by start times of the channels within a row, end times or both. Offsetting may be accomplished using a predetermined set of sampling time values or by randomizing sampling time values. Offsetting pixel sampling times of channels within a row relative to each other decorrelates channel sampling because different phases of the noise signal are sampled on each channel, effectively blurring or dithering the channel noise within each row. Random sampling within the channel, such as by varying a channel sampling time between rows, further dithers the noise within each channel. Undesirable correlated noise effects are reduced as a result.

Decorrelated channel sampling for digital imaging

In association with an imaging device which generates a portion of an image from a plurality of channels within a first row by sampling each channel during a sampling time corresponding to the channel, circuitry offsets sampling times of at least first and second channels within the first row, thereby reducing noise correlation between the first and second channels in the first row. Pixel sampling times may be defined by start times of the channels within a row, end times or both. Offsetting may be accomplished using a predetermined set of sampling time values or by randomizing sampling time values.

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Wilmington, DE, United States of America

Brad Polischuk