Digital Signal Processing Reference
In-Depth Information
MULTIPLETS in MRS : PADE SHAPE SPECTRA with PARTIAL SIGNAL LENGTH N
P
= 800 (COMPONENTS: TOP, TOTAL: BOTTOM)
SPECTRAL CROWDING and OVERLAPS : FREQUENCY BANDS with FOCUS ON DOUBLETS and TRIPLETS
Absorption Component Shape Spectra : Normal Glandular Prostate Tissue
600
ν
L
= 500 MHz
PADE : FPT
(−)
500
B
0
≈
11.7 T
K = 400, N
P
= 800
400
CONVERGED
300
200
100
0
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3
2.9
2.8
2.7
2.6
2.5
2.4
(i) Chemical shift (ppm)
Absorption Total Shape Spectrum : Normal Glandular Prostate Tissue
600
ν
L
= 500 MHz
PADE : FPT
(−)
500
B
0
≈
11.7 T
K = 400, N
P
= 800
400
CONVERGED
300
200
100
0
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3
2.9
2.8
2.7
2.6
2.5
2.4
(ii) Chemical shift (ppm)
FIGURE 11.3
Converged Pade absorption component shape spectra (panel (i)) and con
verged absorption total shape spectra (panel (ii)) for normal glandular
prostate using in vitro MRS data derived from Ref. [443].
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