Digital Signal Processing Reference
In-Depth Information
PADE COMPONENT SHAPE SPECTRA with ZOOMING into MULTIPLETS : PARTIAL SIGNAL LENGTH N
P
= 800
THREE TYPES of PROSTATE TISSUE : NORMAL GLANDULAR (TOP), NORMAL STROMAL (MIDDLE) and MALIGNANT (BOTTOM)
Absorption Component Shape Spectra
600
ν
L
= 500 MHz
B
0
PADE : FPT
(−)
K = 400, N
P
= 800
500
≈
11.7 T
Normal Glandular
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 Component Shape Spectra
600
ν
L
= 500 MHz
B
0
PADE : FPT
(−)
K = 400, N
P
= 800
500
≈
11.7 T
Normal Stromal
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)
Absorption Component Shape Spectra
700
ν
L
= 500 MHz
PADE : FPT
(−)
600
B
0
≈
11.7 T
K = 400, N
P
= 800
Malignant
500
Converged
400
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
(iii) Chemical shift (ppm)
FIGURE 11.12
Converged Pade absorption component spectra at N
P
= 800 for normal glan
dular prostate (panel (i)), normal stromal prostate (panel (ii)) and malignant
prostate (panel (iii)) within the zoomed region from 2.4 ppm to 3.7 ppm using
in vitro MRS data derived from Ref. [443].
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