US 2019/0099159 A1 · Measurement Point Determination in Medical Diagnostic Imaging

Abstract

For measurement point determination in imaging with a medical scanner, the user selects a location on the image. Rather than using that location, an “intended” location corresponding to a local boundary or landmark represented in the image is identified. The medical scanner uses the simple user interface to more exactly determine points for measurement. One or more rays are cast from the user selected location. The actual location is found by examining data along the ray or rays. For 2D imaging, the rays are cast in the plane. For 3D imaging, the ray is cast along a view direction to find the depth. The intensities along the ray or around the ray are used to find the actual location, such as by application of a machine-learnt classifier to the limited region around the ray or by finding intensities along the ray relative to a threshold.

Claims20

Dependent claims

A method for measurement point determination in imaging with an ultrasound scanner, the method comprising:

displaying, on a display, an ultrasound image three-dimensionally rendered from ultrasound data representing a volume of tissue of a patient;
receiving, from a user input device, a position of a measurement caliper on the ultrasound image;
defining a ray along a view direction from the position of the measurement caliper into the volume;
identifying a depth along the ray with a machine-learnt classifier based on input of ultrasound data from a sub-region of the volume limited to be around and include the ray;
calculating, by an image processor, a quantity as a function of the position of the measurement caliper and the depth;
and
outputting the quantity.

4 more elements

Dependencies are inferred from the claim text.

Measurement Point Determination in Medical Diagnostic Imaging

Life of this patent

Measurement Point Determination in Medical Diagnostic Imaging

Life of this patent

Abstract

Claims20