Toshiba Medical Systems Corporation

Kabushiki Kaisha Toshiba

The Johns Hopkins University

Toshiba Medical Visualization Systems Europe, Limited

Robert Davey

Todd R McNutt

Minoru Nakatsugawa

Timothy Day

Harry Quon

Alan Graham

Scott Patrick Robertson

Andrew Smout

Laurent Lessieux

Paul Spencer Ross

Zhi Cheng

John Wayne Haller

Rachel-Louise Kvertus Koktava

Kosuke Sakaue

A medical image processing apparatus comprises smoothing circuitry that receives a volumetric medical image data set corresponding to a 3D region of a subject and smooths the volumetric medical image data set to generate a smoothed medical image data set, wherein at least one part of the surface of a structure is represented in the volumetric medical image data set, rendering circuitry that produces a 2D rendered data set from the smoothed medical image data set, curvature calculation circuitry that calculates a respective curvature at each of a plurality of positions on the at least one part of the surface of the structure and smooths the calculated curvatures to obtain smoothed calculated curvatures, and shading addition circuitry that adds shading to the 2D rendered data set in dependence on the smoothed calculated curvatures.

Medical image processing apparatus and method

An apparatus for determining a contour of a treatment region in a patient includes a computer processor to receive input regarding a contour of at least one organ-at-risk (OAR) adjacent to the treatment region; receive input regarding an initial contour of the treatment region; predict a radiation toxicity to the at least one OAR based on the contour of the at least one OAR, the initial contour of the treatment region, and a radiation treatment regimen; determine whether the predicted radiation toxicity exceeds a threshold; and determine a contour of the treatment region by iteratively modifying the initial contour of the treatment region, and any subsequent modified contours of the treatment region, until a stopping condition is satisfied. The stopping condition can be a preselected number of iterations or that the predicted radiation toxicity using the contour in place of the initial contour is first calculated is below said threshold.

Method and apparatus for determining treatment region and mitigating radiation toxicity

An image processing apparatus comprises a data receiving unit configured to receive medical imaging data and a registration unit configured to obtain a registration of the medical imaging data with model-based virtual anatomy data by determining a transformation between a coordinate space of the medical imaging data and a coordinate space of the virtual anatomy data based on the locations of anatomical landmarks in the medical imaging data and the locations of corresponding anatomical landmarks in the virtual anatomy data.

Apparatus and method for registering virtual anatomy data

A method of navigating along a biological object with a lumen represented by a three-dimensional volume data set comprises generating a plurality of navigation segments connectable in a sequence, each segment having a start point within the lumen, a direction and a length. The navigation may be used for a camera in a virtual endoscopic examination, for example. The direction of each segment is determined by casting groups of rays outwards from the start point of the segment to the object wall, and calculating an average ray length for each group. The group having the largest average ray length is selected, and the axial direction of this group is used as the direction for the segment. The average ray lengths of the groups may be weighted using the direction of the previous segments to bias the navigation generally forward, or may be weighted using a view direction of the camera to allow a user to turn the camera into a chosen branch in the object.

Method for navigating a virtual camera along a biological object with a lumen

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Edinburgh, United Kingdom

Robert Davey