Ultrafast magnetic resonance spectroscopic imaging using SPICE with learned subspaces

Abstract

The proposed method enables ultrafast ¹ H-MRSI of the brain using a learned subspace, eliminating the need of acquiring subject-dependent navigator data (known as <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>D</mml:mi><mml:mn>1</mml:mn></mml:msub></mml:math> ) in the original SPICE technique. It represents a new way to perform MRSI experiments and an important step toward practical applications of high-resolution MRSI.