. Author manuscript; available in PMC: 2018 Apr 1.

Published in final edited form as: NMR Biomed. 2016 Feb 26;30(4):10.1002/nbm.3495. doi: 10.1002/nbm.3495

Table 1.

Comparison of quantitative susceptibility mapping (QSM) studies to map oxygenation.

Study	QSM technique	Veins analyzed	SvO₂ values (%)
Haacke et al. (31)	Thresholded k-division	Large veins (8mm – 16mm diameter), e.g. vein of Galen and thalamostriate veins	66.1 – 79.4 (calculated)
Fan et al. (34)	Regularization with L1-penalty	Large sinuses e.g. sagittal sinus, transverse sinus, straight sinus	47.7 – 67.6
Fan et al. (34)	Regularization with L1-penalty	Pial veins e.g. superior anastomic vein	70.2 – 75.3
Xu et al. (37)	Nonlinear dipole inversion	Pial veins	72.2 ± 4 (mean)

Zhang et al. (41)	Regularization with L1-penalty	Tissue voxels	66.1 ± 10 (mean gray matter)