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. Author manuscript; available in PMC: 2017 Aug 11.
Published in final edited form as: IEEE Trans Biomed Eng. 2013 Jun 7;60(12):3441–3448. doi: 10.1109/TBME.2013.2266795

Fig. 3.

Fig. 3

Noise weighting effect in QSM on a healthy subject shown in (a) magnitude, local field and (b) reconstructed QSM images in a sagittal section. The images in (c) correspond to the dashed boxes in (b). The average image quality scores were 1, 2, 3, 4.3, 4.5, and 5 for TKD, WKD, TVWA, MGL1, NTVWA, and NMEDI, respectively. Overall streaking artifacts were reduced in Bayesian methods. In the zoom-in images in (c), streaking artifacts were seen originating from vessels (black arrows) in TVWA and MGL1. This artifact was reduced to some extent in NTVWA and even further in NMEDI.