finding the adc
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Finding the ADC. Taylor Gillie 6/12/09. Finding the ADC. Finding the Average ADC. Weighted average using contour area from ImageJ. Comparing RD to EP. Comparing RD to EP. Comparing RD to EP. Comparing RD to EP. - PowerPoint PPT PresentationTRANSCRIPT
Finding the ADC
Taylor Gillie
6/12/09
Finding the ADCExam 1
b Area avg. I min. I max. I .-ln (I/I0) ADC (best fit) Exam Date Stack #
Slice 22
0 42 2802.5 1553 3827 0 0.00150328 6/22/2007 5
520 42 1215 960 1480 0.836 5
850 42 807.19 633 919 1.245 5
Slice 23
0 115 2284.1 249 4844 0 0.00157184 6/22/2007 4
520 115 892.97 94 1362 0.939 4
850 115 646.88 81 966 1.262 4
Exam 1 and Exam 2
y = 0.00157184x
y = 0.00150328x
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0 100 200 300 400 500 600 700 800 900
Diffusion Weighting (s/mm^2)
-ln
(I/I0
)
Finding the Average ADC
Weighted average using contour area from ImageJ
Total Area Percentage Avg. Wt. ADC
157 Slice 22 0.268 Exam 1 0.00155350
Slice 23 0.732 Exam 2 0.00146617
Exam 1
b Area avg. I min. I max. I .-ln (I/I0) ADC (best fit) Exam Date Stack #
Slice 22
0 42 2802.5 1553 3827 0 0.00150328 6/22/2007 5
520 42 1215 960 1480 0.836 5
850 42 807.19 633 919 1.245 5
Slice 23
0 115 2284.1 249 4844 0 0.00157184 6/22/2007 4
520 115 892.97 94 1362 0.939 4
850 115 646.88 81 966 1.262 4
Comparing RD to EP
006 Average ADC RD as a Function of Time
0.00130000
0.00135000
0.00140000
0.00145000
0.00150000
0.00155000
0.00160000
6/17/2007 6/27/2007 7/7/2007 7/17/2007 7/27/2007
Exam Date
AD
C (
mm
^2/
s)
Lesion 1
006 Average ADC EP as a Function of Time
0.00130000
0.00135000
0.00140000
0.00145000
0.00150000
0.00155000
0.00160000
6/17/2007 6/27/2007 7/7/2007 7/17/2007 7/27/2007
Exam Date
AD
C (
mm
^2/
s)
Lesion 1
Comparing RD to EP
014 Average ADC RD as a Function of Time
0.00000000
0.00020000
0.00040000
0.00060000
0.00080000
0.00100000
0.00120000
0.00140000
3/18/2008 4/2/2008 4/17/2008 5/2/2008 5/17/2008 6/1/2008
Exam Date
AD
C (
mm
^2/
s)
Lesion 1
014 Average ADC EP as a Function of Time
0.00000000
0.00020000
0.00040000
0.00060000
0.00080000
0.00100000
0.00120000
0.00140000
3/18/2008 4/2/2008 4/17/2008 5/2/2008 5/17/2008 6/1/2008
Exam Date
AD
C (
mm
^2/
s)
Lesion 1
Comparing RD to EP
013 Average ADC RD as a Function of Time
0.00112000
0.00117000
0.00122000
0.00127000
0.00132000
0.00137000
0.00142000
0.00147000
2/2/2008 4/2/2008 6/1/2008 7/31/2008 9/29/2008
Exam Date
AD
C (
mm
^2
/s)
Lesion 1
013 Average ADC EP as a Function of Time
0.00112000
0.00117000
0.00122000
0.00127000
0.00132000
0.00137000
0.00142000
0.00147000
2/22/2008 4/12/2008 6/1/2008 7/21/2008 9/9/2008
Exam Date
AD
C (
mm
^2
/s)
Lesion 1
Comparing RD to EP
003 Average ADC RD as a Function of Time
0.00080000
0.00090000
0.00100000
0.00110000
0.00120000
0.00130000
0.00140000
0.00150000
0.00160000
0.00170000
0.00180000
4/8/2007 4/18/2007 4/28/2007 5/8/2007 5/18/2007
Exam Date
AD
C (
mm
^2/
s)
Lesion 1
Lesion 2
003 Average ADC EP as a Function of Time
0.00080000
0.00090000
0.00100000
0.00110000
0.00120000
0.00130000
0.00140000
0.00150000
0.00160000
0.00170000
0.00180000
4/8/2007 4/18/2007 4/28/2007 5/8/2007 5/18/2007
Exam Date A
DC
(m
m^
2/s)
Lesion 1
Lesion 2