VGAN | VisionX V4 |
vgan − nodule group analysis
SYNOPSISvgan [-H] [d=<value>] [of=<outputfile>] [g=<value>] [-a] [-c] [-d] [-i] [-h] [-r] [-n] [-p] [-v] [-G] [-]
DESCRIPTIONvgan performs an analysis on a group of nodules. The groups are specified by using the g= option when the nod.en file contains nodule groupings (the "g" variables). The -a option can be used to apply the analysis on all the groups. Otherwise, the -c option is used to analyze an entire vpna-style directory containing only one group.
An information table (-i) can be generated containing nodule names, times, dates, volume, and resolution.
There is also a doubling time table (-d) containing an analysis of all the possible pairs of nodules in the group. The analysis contains the following information: time1 date, time2 date, interval in days, doubling time, volumetric growth index, confidence measure, and additional notes.
Using the -h option, the tables can be formatted into HTML tables.
The -r option generates a nodule group visualization. If necessary a 3d model of each nodule is generated. The bounding boxes are equalized between all the nodules and a montage is generated for the axial, coronal, sagittal, and oblique views. These files are respectively named g?sa.vx, g?sc.vx, g?ss.vx, and g?so.vx, where ? is the group number. The -n option renders the images only if there are new segmented images.
The -p option generates a graph of volume versus time. The graph is viewable using vplot.
OPTIONS|
d= |
the nodule directory (default=.) This option allows the analysis to be performed in a working directory when write access is not available in the nodule directory. | ||
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of= |
The output file for text table, html table, or plot | ||
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g= |
The nodule group number to analyze | ||
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-a |
Perform the analysis for all groups. This flag, in conjunction with -d, -i, -r, -p performs the analysis on all the groups, rather than just group g. In the case where tables are generated, the file names are g?.html or g?.txt for doubling time tables, and g?i.html or g?i.txt for information tables. | ||
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-c |
Analyze all nodules in directory (vpna compatability) | ||
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-d |
Generate a doubling time table | ||
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-i |
Generate an information table | ||
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-h |
Use HTML for tables | ||
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-r |
Render montages of 3d nodule models from 4 different views | ||
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-n |
Render only if newer files are present | ||
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-p |
Plot the volume of each nodule in group (viewable with vplot) | ||
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-v |
Verbose option | ||
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-G |
Do not perofrm non-solid analysis (compatible with version 1) |
* Can only be used in directories with nod.en files.
BUGS* -p option requires of= option. It can’t write to stdout.
SEE ALSOvgetnd(1)
AUTHORA. B. Chan, Fall 2001