Low‐rank iterative infilling for zero echo‐time (ZTE) imaging

The proposed method enables artifact-free reconstruction up to dead-time gap of 4 Nyquist dwells and thereby supports ZTE imaging up to an imaging bandwidth of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:semantics><mml:mrow><mml:mo>±</mml:mo> <mml:mn>41</mml:mn> <mml:mo>.</mml:mo> <mml:mn>67</mml:mn></mml:mrow> <mml:annotation>$$ \pm 41.67 $$</mml:annotation></mml:semantics> </mml:math> kHz (assuming transmit and receive switching less than 30 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:semantics><mml:mrow><mml:mi>μ</mml:mi></mml:mrow> <mml:annotation>$$ \mu $$</mml:annotation></mml:semantics> </mml:math> s). It demonstrates superior performance compared to algebraic and parallel imaging methods.