retuve.hip_us

DDH Ultrasound

Retuve runs 3 seperate DDH Ultrasound Models:

References to more specifics on these indicies can be found here: https://boneandjoint.org.uk/Article/10.1302/2633-1462.311.BJO-2022-0081.R1/pdf

For how to run these models yourself, see the examples: https://github.com/radoss-org/retuve/tree/main/examples/

3D Ultrasound

Retuve makes the following measurements in a 3D Hip Ultrasound:

  • Alpha Angle
  • Coverage
  • Curvature (A measure of the shape of the acetabulum/illium bone)
  • ACA (Acetabular Coverage Angle) (A more precise 3D Alpha Angle)
  • Centering Ratio (A measure of the femoral head position in 3D space)

We calculate the 2D measurements in 3D by finding the average in the:

  • Graf Plane (including +/- 5% in average)
  • Posterior
  • Anterior

Alpha, Coverage and Curvature are visible on videos created by retuve, which can be seen here:

Attribution of the above Ultrasound Images: Case courtesy of Ryan Thibodeau from https://radiopaedia.org 172535 (https://radiopaedia.org/cases/172535)

The Centering Ratio and ACA values are not as easy to visualise, but can be seen in the following 3D Figure:

Derivative from Radiopedia: Case courtesy of Ryan Thibodeau from https://radiopaedia.org 172535 (https://radiopaedia.org/cases/172535)

2D Ultrasound

Retuve makes the following measurements in a 2D Hip Ultrasound:

  • Alpha Angle
  • Coverage
  • Curvature (A measure of the shape of the acetabulum/illium bone)

They can all be seen on the below image.

drawing

Attribution of the above Ultrasound Images: Case courtesy of Ryan Thibodeau from https://radiopaedia.org 172535 (https://radiopaedia.org/cases/172535)

2D Sweep Ultrasound (Experimental/Limited Testing)

2D Sweep Ultrasound is essentially 2D Ultrasound, with the added ability to detect which frame of a video/dicom to select for analysis. This is useful for scans that have not been processed already.

 1# Copyright 2024 Adam McArthur
 2#
 3# Licensed under the Apache License, Version 2.0 (the "License");
 4# you may not use this file except in compliance with the License.
 5# You may obtain a copy of the License at
 6#
 7#     http://www.apache.org/licenses/LICENSE-2.0
 8#
 9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15"""
16.. include:: ../../docs/modalities/ultrasound.md
17"""