Recent changes to CSV files

CSV files modified by Ilan Tal

Ilan Tal — Thu, 05 Dec 2024 08:23:32 -0000

--- v19
+++ v20
@@ -39,7 +39,7 @@

 ### ROI details

-What is the difference between Nifti ROIs and manual ROIs? The manual ROIs are a list of vertices in a given orientation (axial, coronal or sagital). Since the orientation specifies a plane, X,Y pairs define the vertices. The accepted points are not stored.
+What is the difference between Nifti ROIs and manual ROIs? The manual ROIs are a list of vertices in a given orientation (axial, coronal or sagittal). Since the orientation specifies a plane, X,Y pairs define the vertices. The accepted points are not stored.

 [[img src=ROI1.png]] or, without SUV being checked  [[img src=ROI0.png]]

CSV files modified by Ilan Tal

Ilan Tal — Thu, 05 Dec 2024 08:21:44 -0000

--- v18
+++ v19
@@ -39,8 +39,10 @@

 ### ROI details

-What is the difference between Nifti ROIs and manual ROIs? The manual ROIs are a list of vertices in a given orientation (axial, coronal or sagital). Since the orientation specifies a plane, X,Y pairs define the points
+What is the difference between Nifti ROIs and manual ROIs? The manual ROIs are a list of vertices in a given orientation (axial, coronal or sagital). Since the orientation specifies a plane, X,Y pairs define the vertices. The accepted points are not stored.
+
 [[img src=ROI1.png]] or, without SUV being checked  [[img src=ROI0.png]] 

-Nifti ROIs are a list of X,Y,Z coordinates which satisfy the internal conditions of the auto segmentation protocol.
+[Nifti ROIs](Autosegmentation) are a list of X,Y,Z coordinates which satisfy the internal conditions of the auto segmentation protocol. Checking SUV will add an addition condition to be satisfied, thus possibly eliminating some of the points.
+
 Return to [help](Pet Ct Viewer Help).

CSV files modified by Ilan Tal

Ilan Tal — Thu, 05 Dec 2024 08:13:30 -0000

--- v17
+++ v18
@@ -40,7 +40,7 @@
 ### ROI details

 What is the difference between Nifti ROIs and manual ROIs? The manual ROIs are a list of vertices in a given orientation (axial, coronal or sagital). Since the orientation specifies a plane, X,Y pairs define the points
-[[img src=ROI1.png]]   [[img src=ROI0.png]] 
+[[img src=ROI1.png]] or, without SUV being checked  [[img src=ROI0.png]] 

 Nifti ROIs are a list of X,Y,Z coordinates which satisfy the internal conditions of the auto segmentation protocol.
 Return to [help](Pet Ct Viewer Help).

CSV files modified by Ilan Tal

Ilan Tal — Thu, 05 Dec 2024 08:11:36 -0000

--- v16
+++ v17
@@ -37,4 +37,10 @@

 if the CT condition is used, Hounsfield Units (HU) and their standard deviations will be shown. The CT values are used as part of the filter to determine if a given point is to be accepted or ignored. The point must pass both the SUV and CT tests to be accepted. What is shown in the table is the average value with its standard deviation of those CT values which have passed both tests. This is not the same value which will be shown on the image when you click on some particular point. The click on the image will include all points in the given radius without any regard to any SUV or CT limitations.

+### ROI details
+
+What is the difference between Nifti ROIs and manual ROIs? The manual ROIs are a list of vertices in a given orientation (axial, coronal or sagital). Since the orientation specifies a plane, X,Y pairs define the points
+[[img src=ROI1.png]]   [[img src=ROI0.png]] 
+
+Nifti ROIs are a list of X,Y,Z coordinates which satisfy the internal conditions of the auto segmentation protocol.
 Return to [help](Pet Ct Viewer Help).

CSV files modified by Ilan Tal

Ilan Tal — Wed, 19 Dec 2018 13:38:09 -0000

--- v15
+++ v16
@@ -35,8 +35,6 @@

 ### CT values

-Hounsfield Units (HU) and their standard deviations have been added. The CT values are used as part of the filter to determine if a given point is to be accepted or ignored. The point must pass both the SUV and CT tests to be accepted. What is shown in the table is the average value with its standard deviation of those CT values which have passed both tests. This is not the same value which will be shown on the image when you click on some particular point. The click on the image will include all points in the given radius without any regard to any SUV or CT limitations.
-
-It also follows that if the CT condition is not used in brown fat, all the HU values will be zero.
+if the CT condition is used, Hounsfield Units (HU) and their standard deviations will be shown. The CT values are used as part of the filter to determine if a given point is to be accepted or ignored. The point must pass both the SUV and CT tests to be accepted. What is shown in the table is the average value with its standard deviation of those CT values which have passed both tests. This is not the same value which will be shown on the image when you click on some particular point. The click on the image will include all points in the given radius without any regard to any SUV or CT limitations.

 Return to [help](Pet Ct Viewer Help).

CSV files modified by Ilan Tal

Ilan Tal — Fri, 02 Feb 2018 06:37:35 -0000

--- v14
+++ v15
@@ -25,7 +25,7 @@

 Columns H and I are the SUVPeak calculate via [Wahl](http://www.ncbi.nlm.nih.gov/pubmed/19403881) and the mean of its slice values. Columns J and K are SUVqPeak and its mean slice values calculated by [qPET - a quantitative extension of the Deauville scale...](http://www.ncbi.nlm.nih.gov/pubmed/24604592).

-**Note** The most significant line may be line 15. Column A says coronal which tells which way the data is being displayed. For manual ROIs a set of ROIs is specific to a given orientation on which the ROIs were drawn. Column B says "sum" which is the result which is shown if **Show All** is checked. Column D shows the numeric value of the sum which is not necessarily the result of summing all the values in Column D above this value. Each individual value is the result for that particular ROI, whereas in line 15 any overlap has been eliminated giving the result documented in the TMTV result.
+**Note:** The most significant line may be line 15. Column A says coronal which tells which way the data is being displayed. For manual ROIs a set of ROIs is specific to a given orientation on which the ROIs were drawn. Column B says "sum" which is the result which is shown if **Show All** is checked. Column D shows the numeric value of the sum which is not necessarily the result of summing all the values in Column D above this value. Each individual value is the result for that particular ROI, whereas in line 15 any overlap has been eliminated giving the result documented in the TMTV result.

 ### ROIs

CSV files modified by Ilan Tal

Ilan Tal — Fri, 02 Feb 2018 06:35:39 -0000

--- v13
+++ v14
@@ -25,6 +25,8 @@

 Columns H and I are the SUVPeak calculate via [Wahl](http://www.ncbi.nlm.nih.gov/pubmed/19403881) and the mean of its slice values. Columns J and K are SUVqPeak and its mean slice values calculated by [qPET - a quantitative extension of the Deauville scale...](http://www.ncbi.nlm.nih.gov/pubmed/24604592).

+**Note** The most significant line may be line 15. Column A says coronal which tells which way the data is being displayed. For manual ROIs a set of ROIs is specific to a given orientation on which the ROIs were drawn. Column B says "sum" which is the result which is shown if **Show All** is checked. Column D shows the numeric value of the sum which is not necessarily the result of summing all the values in Column D above this value. Each individual value is the result for that particular ROI, whereas in line 15 any overlap has been eliminated giving the result documented in the TMTV result.
+
 ### ROIs

 On line 18 is reported **Number of ROIs = 13**. These are the binary values of the ROI defined points. This section is not meant to be used by the human. It is meant to be read directly from the csv file, to read back in the previously defined ROIs.

CSV files modified by Ilan Tal

Ilan Tal — Tue, 18 Apr 2017 09:39:01 -0000

--- v12
+++ v13
@@ -31,4 +31,10 @@

 While these values are visible you probably just want to ignore them, especially when you are doing copy-paste from many spreadsheet files into an overall concentration of all results.

+### CT values
+
+Hounsfield Units (HU) and their standard deviations have been added. The CT values are used as part of the filter to determine if a given point is to be accepted or ignored. The point must pass both the SUV and CT tests to be accepted. What is shown in the table is the average value with its standard deviation of those CT values which have passed both tests. This is not the same value which will be shown on the image when you click on some particular point. The click on the image will include all points in the given radius without any regard to any SUV or CT limitations.
+
+It also follows that if the CT condition is not used in brown fat, all the HU values will be zero.
+
 Return to [help](Pet Ct Viewer Help).

CSV files modified by Ilan Tal

Ilan Tal — Thu, 23 Jul 2015 11:57:01 -0000

--- v11
+++ v12
@@ -23,4 +23,12 @@

 Column F and G are the SUVMean and its standard deviation. Columns H to M are various measurements of the max. The most common is SUVMax in column L. Next to it in column M is the MeanMax, which gives an idea of how accurate the SUVMax might be. The MeanMax is done by calculating the SUVMax in each slice separately and then taking the mean of those maximum values. This is the value reported in parentheses in the Brown fat results table.

+Columns H and I are the SUVPeak calculate via [Wahl](http://www.ncbi.nlm.nih.gov/pubmed/19403881) and the mean of its slice values. Columns J and K are SUVqPeak and its mean slice values calculated by [qPET - a quantitative extension of the Deauville scale...](http://www.ncbi.nlm.nih.gov/pubmed/24604592).
+
+### ROIs
+
+On line 18 is reported **Number of ROIs = 13**. These are the binary values of the ROI defined points. This section is not meant to be used by the human. It is meant to be read directly from the csv file, to read back in the previously defined ROIs.
+
+While these values are visible you probably just want to ignore them, especially when you are doing copy-paste from many spreadsheet files into an overall concentration of all results.
+
 Return to [help](Pet Ct Viewer Help).

CSV files modified by Ilan Tal

Ilan Tal — Thu, 23 Jul 2015 11:12:26 -0000

--- v10
+++ v11
@@ -19,4 +19,8 @@

 Column D may be the most important column. On each line is the volume of the given ROI in ml. However on line 15 you can see coronal as the label and **sum** as the ROI type. This line contains the sum of all values. It is not a simple sum but rather a sum where overlapping pixels are counted only once. Thus the volume on line 15 is less than or equal to the sum of all the numbers above it. This same avoidance of dual counting of overlapping pixels is applied to all the following results as well.

+Column E is the Volume*Mean, which is column D * column F. If you take a calculator and multiply the values in these columns you may see a slightly different value. This is because the values in all columns are shown rounded to a given accuracy whereas the value in column E was calculated before rounding.
+
+Column F and G are the SUVMean and its standard deviation. Columns H to M are various measurements of the max. The most common is SUVMax in column L. Next to it in column M is the MeanMax, which gives an idea of how accurate the SUVMax might be. The MeanMax is done by calculating the SUVMax in each slice separately and then taking the mean of those maximum values. This is the value reported in parentheses in the Brown fat results table.
+
 Return to [help](Pet Ct Viewer Help).