Digital Signal Processing Reference
In-Depth Information
TABLE 9.2
Padereconstructions from a theoretically generated FID reminiscent of in
vitro MRS data as encoded from benign ovarian cyst fluid [343]. The recovered
data converged at N/16 = 64 (N = 1024) on the middle panel (ii).
CONVERGENCE of SPECTRAL PARAMETERS & CONCENTRATIONS in FPT
(−)
; SIGNAL LENGTH : N/M, N = 1024, M = 8 − 32
(i) N/32 = 32 (Benign)
n
o
k
(Metabolite # k)
−
k
) (ppm)
−
k
) (ppm)
|d
−
k
| (au)
C
−
k
(
Re(
ν
Im(
ν
µ
M/L ww)
M
k
(Assignment)
2
1.040033
0.001124
0.038143
124
Valine (Val)
4
1.409673
0.001117
0.796643
2603
Lactate (Lac)
5
1.482370
0.005257
0.081645
266
Alanine (Ala)
6
1.706966
0.009141
0.035360
115
Lysine (Lys)
7
2.207406
0.216536
0.005435
17
Methionine (Met)
8
2.470151
0.000826
0.082607
270
Glutamine (Gln)
9
3.058390
0.001607
0.020043
65
Creatine (Cr)
10
3.141312
0.002566
0.024686
80
Creatinine (Crn)
12
5.220345
0.000829
0.424418
1387
Glucose (Glc)
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
(ii) N/16 = 64 (Benign)
n
o
k
(Metabolite # k)
−
k
) (ppm)
−
k
) (ppm)
|d
−
k
| (au)
C
−
k
(
Re(
ν
Im(
ν
µ
M/L ww)
M
k
(Assignment)
1
1.020219
0.000818
0.003060
10
Isoleucine (Iso)
2
1.040048
0.000821
0.034578
113
Valine (Val)
3
1.330124
0.000822
0.027540
90
Threonine (Thr)
4
1.410235
0.000828
0.758570
2479
Lactate (Lac)
5
1.510318
0.000824
0.089657
293
Alanine (Ala)
6
1.720125
0.000823
0.030906
101
Lysine (Lys)
7
2.130246
0.000819
0.002142
7
Methionine (Met)
8
2.470118
0.000825
0.084149
275
Glutamine (Gln)
9
3.050039
0.000822
0.019278
63
Creatine (Cr)
10
3.130227
0.000821
0.020808
68
Creatinine (Crn)
11
3.190136
0.000820
0.004590
15
Choline (Cho)
12
5.220345
0.000829
0.424419
1387
Glucose (Glc)
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
(iii) N/8 = 128 (Benign)
n
o
k
(Metabolite # k)
−
k
) (ppm)
−
k
) (ppm)
|d
−
k
| (au)
C
−
k
(
Re(
ν
Im(
ν
µ
M/L ww)
M
k
(Assignment)
1
1.020219
0.000818
0.003060
10
Isoleucine (Iso)
2
1.040048
0.000821
0.034578
113
Valine (Val)
3
1.330124
0.000822
0.027540
90
Threonine (Thr)
4
1.410235
0.000828
0.758570
2479
Lactate (Lac)
5
1.510318
0.000824
0.089657
293
Alanine (Ala)
6
1.720125
0.000823
0.030906
101
Lysine (Lys)
7
2.130246
0.000819
0.002142
7
Methionine (Met)
8
2.470118
0.000825
0.084149
275
Glutamine (Gln)
9
3.050039
0.000822
0.019278
63
Creatine (Cr)
10
3.130227
0.000821
0.020808
68
Creatinine (Crn)
11
3.190136
0.000820
0.004590
15
Choline (Cho)
12
5.220345
0.000829
0.424419
1387
Glucose (Glc)
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