Hologic, Inc.

Other

Telepath Networks, Inc.

University of California

Kevin E Wilson

Jay A Stein

Thomas L Kelly

Christopher Ruth

Andrew P Smith

Baorui Ren

Howard P Weiss

Richard E Cabral

Donald Barry

John P O'Brien

Dennis G Lamser

Mark Guetersloh

Patrick L McGuire

John A Shepherd

Eric Von Stetten

Robert Tarzwell

Wei Wang

Remo J Rossi

Tri Pham

Tom Richardson

Daniel Santos

Krishna Ramamurthi

Daniel W Hawkins

Brad Herrington

James D Miller

Richard Keil

Vincent E Quinn

Aleksey Danilkin

John P Fallon

Joel B Weinstein

Louis Couture

John Baggs

Baouri Ren

Bennett K Ng

Chao Huang

Ninh Nguyen

Alexsey Danilkin

Vinnie Quinn

Andrew Smith

Richard E Keil

Patrick Mcquire

A dual-energy X-ray absorptiometry ('DXA') system includes an x-ray source assembly comprising a source carriage to move the x-ray source assembly along a scan path, the scan path comprising an active scan portion and a reference measurement portion. A detector assembly including a detector carriage to move the detector assembly with the source assembly and to collect scan data at active scan portions. A support structure supporting the source and detector assemblies. A calibration controller coupled a calibration element having a known x-ray attenuation value and configured position the calibration element between the source and detector assemblies during the reference measurement portion and to remove the calibration element from between the source and detector assemblies during the active scan portion. A processing unit operable to compare the reference measurement against an expected reference value to identify a variance and to selectively trigger an action in response to the variance.

System and method for continuous calibration of X-ray scans

Systems and methods for determining body composition by combining dual-energy x-ray (DXA) technology with three-dimensional (3D) optical technology and/or bioimpedance technology. A multi-modality scanning system may include a dual-energy x-ray source and an x-ray detector mounted to opposing sides a c-arm and configured to scan a patient on a optically translucent table. The system may also include one or more 3D optical imaging devices to capture 3D optical images of the patient substantially concurrently with the emission of the dual energy x-rays. A bioimpedance machine may also be included in the multi-modality scanning system. Data based on the dual-energy x-rays may be combined with the data from the 3D optical images and/or the bioimpedance data to generate values of at least three compartments selected from: bone, fat tissue, lean tissue, dehydrated lean tissue, and water.

Multiple modality body composition analysis

A method of generating a visual representation of a complex medical diagnosis includes receiving a first signal corresponding to a measurement of a patient biological condition. A second signal corresponding to a measurement of a patient performance condition is also received. The first and second signals are processed and a visual representation of a diagnostic assessment is generated. The diagnostic assessment is based at least in part on the patient biological condition and the patient performance condition. The visual representation is marked with the measurement of the patient biological condition and the measurement of the patient performance condition.

Systems and methods for presenting complex medical condition diagnoses

A medical imaging device includes an x-ray source disposed at a first end of an arm, and an x-ray detector disposed at a second end of the arm opposite of the x-ray source. At least one of the x-ray source, the x-ray detector, and a portion of the arm are selectively adjustable with respect to the arm.

Medical imaging device and method of operating a medical imaging device

A system for measuring muscle mass of a patient has a dual-energy radiation emission source. A radiation detector is configured to detect radiation emitted from the dual-energy radiation emission source passed through the patient. A processor has a memory with storing instructions, that when executed by the processor, perform a set of operations. The operations include receiving radiation detection data; generating a scan representation; identifying a primary fat target; determining an amount of fat in the primary fat target; comparing the amount of fat in the primary fat target to a reference; and based on the comparison, correcting an estimated amount of lean tissue to generate a corrected muscle mass value.

Methods for physiological state determination in body scans

A method includes moving a radiation source and a radiation detector along a scan path substantially transverse to a longitudinal axis of a patient. A beam of radiation is emitted from the radiation source. The beam of radiation is detected at the radiation detector. The detected beam is processed so as to form a first image of a first area of the patient along the scan path.

Bone densitometer

Dual-energy absorptiometry is used to estimate intramuscular adipose tissue metrics and display results, preferably as related to normative data. The process involves deriving x-ray measurements for respective pixel positions related to a two-dimensional projection image of a body slice containing intramuscular adipose tissue as well as subcutaneous adipose tissue, at least some of the measurements being dual-energy x-ray measurements, processing the measurements to derive estimates of metrics related to the intramuscular adipose tissue in the slice, and using the resulting estimates. Processing the measurements includes an algorithm which places boundaries of regions, e.g., a large region and a smaller region. The regions are combined in an equation that is highly correlated with intramuscular adipose tissue measured by quantitative computed tomography in order to estimate intramuscular adipose tissue.

Measuring intramuscular fat

The disclosure herein include a magnetic tool for attaching to and moving a ferromagnetic workpiece that may include: a chassis having a magnetic face; a base rotatably coupled to the chassis; and a handle rotatably coupled to the base.

Magnetic tools

A method and a system for using tomosynthesis projection images of a patient's breast to reconstruct slice tomosynthesis images such that anatomical structures that appear superimposed in a mammogram are at conforming locations in the reconstructed images.

Matching geometry generation and display of mammograms and tomosynthesis images

Dual-energy absorptiometry is used to estimate visceral fat metrics and display results, preferably as related to normative data. The process involves deriving x-ray measurements for respective pixel positions related to a two-dimensional projection image of a body slice containing visceral fat and subcutaneous fat, at least some of the measurements being dual-energy x-ray measurements, processing the measurements to derive estimates of metrics related to the visceral fat in the slice, and using the resulting estimates. Processing the measurements includes an algorithm which places boundaries of regions, e.g., a large 'abdominal' region and a smaller 'abdominal cavity' region. Two boundaries of the &#x201c;abdominal cavity&#x201d; region are placed at positions associated with the left and right innermost extent of the abdominal muscle wall by identifying inflection of % Fat values. The regions are combined in an equation that is highly correlated with VAT measured by quantitative computed tomography in order to estimate VAT.

Visceral fat measurement

Growing community of inventors

Waltham, MA, United States of America

Kevin E Wilson