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

Published in final edited form as: NMR Biomed. 2016 May 20;30(4):10.1002/nbm.3551. doi: 10.1002/nbm.3551

Table 1.

a) Detected number of voxels on magnitude, processed phase and SWI images of the in vitro iron-chitosan microsphere (μsphere) phantom and b) measured susceptibility (in ppb) from in vitro phantom data acquired at 3T are compared with the predictions shown in Figures 2, 5 and 6. The SNR of magnitude images were 12:1, 11:1 and 10:1 for TEs: 7ms, 14ms and 20ms, respectively.

At TE = 20ms, SNR = 10:1	Diameter = 2		Diameter = 1			Diameter = 0.5
At TE = 20ms, SNR = 10:1	Number of voxels predicted	In vitro 0.5mm³ (1000μm μsphere)	Number of voxels predicted	In vitro 0.5mm³ (400μm μspheres)	In vitro 1mm³ (1000μm μsphere)	Number of voxels predicted	In vitro 0.5mm³ (200μm μspheres)	In vitro 1mm³ (400μm μspheres)

Magnitude	15	20	2	7	3	0	0	0
Phase	65	58	10	8	9	1	1	1
SWI	46	46	27	17	21	23	10	2
a)

TE (in ms)	Diameter = 2		Diameter = 1			Diameter = 0.5
TE (in ms)	Δχ from simulation	In vitro 0.5mm³ (1000μm μsphere)	Δχ from simulation	In vitro 0.5mm³ (400μm μspheres)	In vitro 1mm³ (1000μm μsphere)	Δχ from simulation	In vitro 0.5mm³ (200μm μspheres)	In vitro 1mm³ (400μm μspheres)

7	658	667	322	300	311	15	18	24
14	436	580	280	287	285	11	22	30
20	417	406	283	266	190	8	9	16
b)