Patent · US Active

System and method for angle measurements using magnetic resonance images

US10820837B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

Siemens Healthcare Limited · DE

Inventors

Liang Zhao · Dalian, CN
Esther Raithel · Dormitz, DE
Yiqiang Zhan · Shanghai, CN

Key dates

Filing date	Apr 9, 2019
Grant date	Nov 3, 2020
Priority date	—
Expiry date	Jun 4, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06T2210/41
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

In a method for alpha angle measurements of a bone joint based on magnetic resonance imaging (MRI) data of the bone joint, a three-dimensional (3D) bone surface image of the bone joint is generated based on two-dimensional (2D) segmentations on radial plane slices of the bone joint. Based on the 3D bone surface image, a head center of a head of the bone joint and a neck axis of a neck of the bone joint are estimated. An alpha angle model is constructed based on the estimated head center and neck axis. Further, the alpha angle measurement is determined for each of the radial plane slices of the bone joint based on the constructed alpha angle model.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.