General Electric Company

Robert Washenko

Randall Payne

James Wear

David L Ergun

Paul Markwardt

Michael Bucholz

Darrell Gorsuch

Methods and apparatus for measuring body circumference are provided. One method includes acquiring dual-energy two-dimensional (2D) scan information from a dual-energy x-ray scan of a body and generating a dual-energy image of the body using the 2D scan information. The method further includes determining a circumference of at least one portion of the body based on the dual-energy scan information and the generated dual-energy image.

Methods and apparatus for measuring body circumference

A scanning bone densitometer includes an x-ray source to produce x-rays and an x-ray detector receiving x-rays emitted from the x-ray source. The x-ray detector includes a cadmium tellurium (CdTe) semiconductor. The scanning bone densitometer also includes a controller moving the x-ray source and the x-ray detector along a transverse scanning path to acquire a plurality of scan images of an object of interest.

Transverse scanning bone densitometer and detector used in same

A monolithic solid-state detector using a staggered arrangement of pixels in multiple rows improves spatial resolution without requiring reduction in pixel size. Parallelogram shapes of CZT monolith allow tiling in one dimension without inefficient zones between monoliths. A scanning device using linear array of detectors with non-rectangular shape and staggered rows of detection elements such that no dead zones occur within a scan field.

Monolithic x-ray detector with staggered detection areas

A monolithic detector uses a grid to block x-rays from inter-pixel regions such as are believed to cause electrical noise in the pixel signals.

Growing community of inventors

Madison, WI, United States of America

Robert Washenko