Methods, systems, and devices for spine centrum extraction and intervertebral disk dividing

摘要

Devices, systems, and methods for spine centrum extraction and intervertebral disk dividing are disclosed.

主权项

1. A magnetic resonance imaging system comprising:
a control system; a magnet system comprising a magnet that provides a constant main field, a gradient magnetic field coil that generates a gradient magnetic field, a transmitting coil that provides a radio frequency pulse to excite nuclear spin in a subject to be tested, and a receiving coil that detects an echo signal emitting from the subject; a gradient magnetic field that communicates with the control system and drives the gradient magnetic field coil under the control of the control system, and a radio frequency system that communicates with the control system, generates the radio frequency pulse and applies an amplified radio frequency pulse onto the transmitting coil under the control of the control system, wherein the control system comprises a spine centrum extracting device comprising a processing unit for processing magnetic resonance image data of an MR imaging system, the processing unit is configured for:
positioning a spinal cord line by using the magnetic resonance image data;determining a centrum axis section according to the spinal cord line, wherein the centrum axis section indicates changes of gray scale of multi-centrum axes along a centrum axis direction defined by the spinal cord line;positioning a seed point within the spine centrum, wherein the seed point is determined according to the centrum axis section; andextracting a centrum region on the basis of the seed point within the spine centrum by using seed region growth.