Table 2

Results of the measurement of relaxation and of randomization energy, Er


Healthy
SAR
FIB
COB

N
17
15
12
19
Ar_s
0.76 +/- 0.04
0.79 +/- 0.03 (**)
0.79 +/- 0.07 (ns)
0.75 +/- 0.06 (ns)
Tr_f, s
20.6 +/- 7.0
14.5 +/- 3.8 (**)
14.2 +/- 5.6 (**)
16.9 +/- 5.4 (ns)
Tr_s
259 +/- 61
257 +/- 39 (ns)
221 +/- 47 (ns)
239 +/- 57 (ns)
Tr_a, s
66.1 +/- 16.3
57.5 +/- 9.1 (ns)
50.2 +/- 12.5 (**)
55.7 +/- 14.5 (*)
b1
0.61 +/- 0.05
0.63 +/- 0.02 (ns)
0.60 +/- 0.04 (ns)
0.59 +/- 0.07 (ns)
b5
0.23 +/- 0.07
0.24 +/- 0.04 (ns)
0.20 +/- 0.06 (ns)
0.21 +/- 0.07 (ns)
Er, 10-18 J
6.0 +/- 2.1
4.6 +/- 1.5 (*)
5.2 +/- 2.6 (ns)
5.4 +/- 3.1 (ns)

Data are presented as mean +/- SD; SAR: patients with sarcoidosis, IPF: patients with idiopathic pulmonary fibrosis, COB: patients with chronic obstructive bronchitis, N: number of subjects, parameters of the two-term exponential relaxation model: Ar_s: fraction of slow decay, Tr_f: time constant of fast decay, Tr_s: time constant of slow decay, Tr_a: time constant of initial decay; b1: normalized decay after 1 min.; b5: normalized decay after 5 min.; Er: cell energy; ns: not significant; *: p < 0.05, **: p < 0.01).

Möller et al. BioMagnetic Research and Technology 2006 4:4   doi:10.1186/1477-044X-4-4