Magnetic resonance temperature correction method based on k-space energy spectrum analysis and system

US12196823B2 · kind B2 · utility

Assignees

• Shanghai Shende Green Medical Era Healthcare Technology Co., Ltd. · CN
• Shende (Ningbo) Medical Device Technology Co., Ltd · CN
• Nantong Shende Medical Device Technology Co., Ltd · CN

Inventors

• Hao Wu · 红钢城街道, CN
• Jiabao WEN · Shanghai, CN
• Lei Cui · Shandong, CN
• Zhiqiang Su · San Jose, US
• Huaxin LU · Shanghai, CN
• Zhou TIAN · Shanghai, CN
• Jian Tao · Reno, US
• Haolun Zheng · Shanghai, CN
• Xueying Shen · Shanghai, CN
• Shenyan ZONG · Shanghai, CN

Key dates

• Filing date: Feb 28, 2023
• Grant date: Jan 14, 2025
• Expiry date: Jul 24, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/56563
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed are a magnetic resonance temperature correction method based on k-space energy spectrum analysis and a system. The method includes: filling a k-space data matrix of magnetic resonance with zeros row by row, and performing an inverse Fourier transform on the k-space data matrix after filling each row of zeros, to obtain a reconstructed image; drawing a pixel intensity variation curve according to a pixel intensity of each pixel in all reconstructed images and a number of rows filled with zeros, and obtaining echo error according to the pixel intensity variation curve, calculation an actual echo time, and calculating a corresponding temperature variation value based on the TE of each pixel.