Truncation Artifacts and Their Impact on Morphological and Quantitative Lung Imaging

Daniel Stb¹, Andr Fischer¹, Christian Oliver Ritter¹, Dietbert Hahn¹, Herbert Kstler¹

Pulmonary MRI is well-known to be susceptible to artifacts resulting from cardiac and respiratory motion or flow. In addition however, truncation artifacts or Gibbs ringing introduced at the boundaries between lung and surrounding body tissue are present, especially when imaging with low spatial resolution. In this work, the effects of these Gibbs artifacts on the reconstructed images as well as on quantitative lung parameters like T₁ or pulmonary perfusion are demonstrated.