Respiratory phase-resolved 3D body imaging using iterative motion correction and average

US10605880B2 · kind B2 · utility

Assignees

• Siemens Healthcare Limited · DE
• Cedars Sinai Medical Center · US

Inventors

• Xiaoming Bi · Oak Park, US
• Jianing Pang · Chicago, US
• Zhaoyang Fan · La Puente, US
• Matthias Fenchel · Erlangen, DE
• Gerhard Laub · Burlingame, US
• Debiao Li · Naperville, US

Key dates

• Filing date: May 9, 2017
• Grant date: Mar 31, 2020
• Expiry date: Oct 12, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5608
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for performing 3D body imaging includes performing a 3D MRI acquisition of a patient to acquire k-space data and dividing the k-space data into k-space data bins. Each bin includes a portion of the k-space data corresponding to a distinct breathing phase. 3D image sets are reconstructed from the bins, with each 3D image set corresponding to a distinct k-space data bin. For each bin other than a selected reference bin, forward and inverse transforms are calculated between the 3D image set corresponding to the bin and the 3D image set corresponding to the reference bin. Then, a motion corrected and averaged image is generated for each bin by (a) aligning the 3D image set from each other bin to the 3D image set corresponding to the bin using the transforms, and (b) averaging the aligned 3D image sets to yield the motion corrected and averaged image.