US 2013/0259337 A1 · Cardiac Chamber Volume Computation from Contours and Base Plane in Cardiac MR Cine Images

Abstract

A system receives cardiac cine MR images consists of multiple slices of the heart over time. A series of short axis images slices are received. Long axis images are also received by the system, wherein a base plane defined by landmark points is detected. An intersection of the base plane with a contour of a heart chamber is determined for a plurality of slices in the short axis image. A volume for each of the contour slices covering the heart chamber, including for contours that are limited by base plane intersections, is evaluated. All slice volumes are summed to determine a total volume of the chamber. In one embodiment the chamber is a left ventricle and the landmark is a mitral valve. An ejection factor is determined.

Claims20

Dependent claims

A method for calculating a volume of a cardiac chamber from a plurality of slices of image data, comprising:

a processor receiving a plurality of short axis images and a plurality of long axis images of the cardiac chamber;
the processor determining a base plane from a landmark in a long axis image of the cardiac chamber;
the processor determining an intersection between the base plane and the short axis images;
the processor determining a contour in a first slice of the cardiac chamber in a short axis image determined by a segmentation of the chamber and the intersection;
and
the processor calculating a volume related to the contour in the first slice.

3 more elements

Dependencies are inferred from the claim text.

Cardiac Chamber Volume Computation from Contours and Base Plane in Cardiac MR Cine Images

Life of this patent

Cardiac Chamber Volume Computation from Contours and Base Plane in Cardiac MR Cine Images

Life of this patent

Abstract

Claims20