METHOD AND SYSTEM FOR QUANTITATIVE SUSCEPTIBILITY MAPPING RECONSTRUCTION IN LOW-FIELD MAGNETIC RESONANCE IMAGING (MRI) SYSTEM

State of the art systems being used for QSM reconstruction have explored prior information from both magnitude and phase data. However, the underlying assumption is that the susceptibility maps and the magnitude images have coinciding edges. Establishing the ground-truth susceptibility maps is diffi...

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Bibliographic Details
Main Authors Gubbi LAKSHMINARASIMHA, JAYAVARDHANA Rama, PAMULAKANTY SUDARSHAN, VISWANATH, REDDY KANCHAM, PAVAN KUMAR, PAL, ARPAN
Format Patent
LanguageEnglish
Published 28.09.2023
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:State of the art systems being used for QSM reconstruction have explored prior information from both magnitude and phase data. However, the underlying assumption is that the susceptibility maps and the magnitude images have coinciding edges. Establishing the ground-truth susceptibility maps is difficult and leads to limited applicability of supervised methods. Further, with portable MRI machines becoming a reality, low-field imaging is getting more prominence, which brings in several associated challenges due to noise and external interference. The disclosure herein generally relates to magnetic resonance imaging (MRI) imaging systems, and, more particularly, to a method and system for quantitative susceptibility mapping (QSM) reconstruction in magnetic resonance imaging (MRI) systems. The system performs an iterative reconstruction of QSM, wherein in each iteration the reconstructed QSM from previous iteration is refined by comparing with a reference image generated using same subject's prior MRI data.
Bibliography:Application Number: US202318175506