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<HTML><HEAD><TITLE>XMedCon - Medical Image Conversion Utility</TITLE>
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<TABLE border=3 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TH vAlign=center noWrap align=middle NOSAVE><B><FONT size=+4>Patient
Based Coordinate System</FONT></B></TH></TR></TBODY></TABLE></CENTER>
<CENTER>
<P><B><FONT size=+3>1. <U>SUPINE</U></FONT></B></CENTER>
<P><BR>
<CENTER>
<TABLE cols=2 border=1 NOSAVE>
<TBODY>
<TR NOSAVE>
<TD NOSAVE>
<TABLE cols=2 width="100%" NOSAVE>
<TBODY>
<TR NOSAVE>
<TD NOSAVE><B><FONT size=+1>1a. <U>Head First</U></FONT></B></TD>
<TD></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD NOSAVE><IMG height=200 alt="supine head first"
src="XMedCon - Orientation_files/patientSHF.gif" width=200
align=left lowsrc=images/patientSHF.gif></TD>
<TD>
<TABLE cols=4 width=100 border=1 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle NOSAVE></TD>
<TD colSpan=3 NOSAVE><B>Transverse</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD></TD>
<TD><B>x</B></TD>
<TD vAlign=center align=middle NOSAVE><B>y</B></TD>
<TD><B>z</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Row</SUB></B></TD>
<TD>+1</TD>
<TD>-0</TD>
<TD>+0</TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Col</SUB></B></TD>
<TD>+0</TD>
<TD>+1</TD>
<TD>-0</TD></TR></TBODY></TABLE>
<TABLE cols=4 width=100 border=1 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle NOSAVE></TD>
<TD colSpan=3 NOSAVE><B>Sagittal</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD></TD>
<TD><B>x</B></TD>
<TD vAlign=center align=middle NOSAVE><B>y</B></TD>
<TD><B>z</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Row</SUB></B></TD>
<TD>+0</TD>
<TD>+1</TD>
<TD>-0</TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Col</SUB></B></TD>
<TD>+0</TD>
<TD>-0</TD>
<TD>-1</TD></TR></TBODY></TABLE>
<TABLE cols=4 width=100 border=1 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle NOSAVE></TD>
<TD colSpan=3 NOSAVE><B>Coronal</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD></TD>
<TD><B>x</B></TD>
<TD vAlign=center align=middle NOSAVE><B>y</B></TD>
<TD><B>z</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Row</SUB></B></TD>
<TD>+1</TD>
<TD>-0</TD>
<TD>+0</TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Col</SUB></B></TD>
<TD>+0</TD>
<TD>-0</TD>
<TD>-1</TD></TR></TBODY></TABLE> </TD></TR>
<TR>
<TD>Fig.: Patient Supine Head First</TD>
<TD>Tables: Direction cosines</TD></TR></TBODY></TABLE><BR>
<CENTER>
<TABLE cols=3 border=1 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TD NOSAVE><B>Transverse</B> <BR>(XY-plane)</TD>
<TD NOSAVE><B>Sagittal</B> <BR>(YZ-plane)</TD>
<TD><B>Coronal</B> <BR>(XZ-plane)</TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD NOSAVE><IMG height=75 alt=transverse
src="XMedCon - Orientation_files/ltransverse.gif" width=75
lowsrc=images/ltransverse.gif>
<P><B>L</B>eft \ <B>P</B>osterior <BR>Slices -> -z
(F)</P></TD>
<TD><IMG height=75 alt=sagittal
src="XMedCon - Orientation_files/lsagittal.gif" width=75
lowsrc=images/lsagittal.gif>
<P><B>P</B>osterior \ <B>F</B>eet <BR>Slices -> -x
(R)</P></TD>
<TD><IMG height=75 alt=coronal
src="XMedCon - Orientation_files/lcoronal.gif" width=100
lowsrc=images/lcoronal.gif>
<P><B>L</B>eft \ <B>F</B>eet <BR>Slices -> -y
(A)</P></TD></TR></TBODY></TABLE></CENTER> Table:
Direction of row\column unit vector and slices</TD>
<TD>
<TABLE cols=2 width="100%" NOSAVE>
<TBODY>
<TR NOSAVE>
<TD NOSAVE><B><FONT size=+1>1b. <U>Feet First</U></FONT></B></TD>
<TD></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD NOSAVE><IMG height=200 alt="supine feet first"
src="XMedCon - Orientation_files/patientSFF.gif" width=200
align=left lowsrc=images/patientSFF.gif></TD>
<TD>
<TABLE cols=4 width=100 border=1 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle NOSAVE></TD>
<TD colSpan=3 NOSAVE><B>Transverse</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD></TD>
<TD><B>x</B></TD>
<TD vAlign=center align=middle NOSAVE><B>y</B></TD>
<TD><B>z</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Row</SUB></B></TD>
<TD>-1</TD>
<TD>+0</TD>
<TD>-0</TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Col</SUB></B></TD>
<TD>+0</TD>
<TD>+1</TD>
<TD>-0</TD></TR></TBODY></TABLE>
<TABLE cols=4 width=100 border=1 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle NOSAVE></TD>
<TD colSpan=3 NOSAVE><B>Sagittal</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD></TD>
<TD><B>x</B></TD>
<TD vAlign=center align=middle NOSAVE><B>y</B></TD>
<TD><B>z</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Row</SUB></B></TD>
<TD>+0</TD>
<TD>+1</TD>
<TD>-0</TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Col</SUB></B></TD>
<TD>-0</TD>
<TD>+0</TD>
<TD>+1</TD></TR></TBODY></TABLE>
<TABLE cols=4 width=100 border=1 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle NOSAVE></TD>
<TD colSpan=3 NOSAVE><B>Coronal</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD></TD>
<TD><B>x</B></TD>
<TD vAlign=center align=middle NOSAVE><B>y</B></TD>
<TD><B>z</B></TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Row</SUB></B></TD>
<TD>-1</TD>
<TD>+0</TD>
<TD>-0</TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD vAlign=center align=middle
NOSAVE><B>V<SUB>Col</SUB></B></TD>
<TD>-0</TD>
<TD>+0</TD>
<TD>+1</TD></TR></TBODY></TABLE> </TD></TR>
<TR>
<TD>Fig.: Patient Supine Feet First</TD>
<TD>Tables: Direction cosines</TD></TR></TBODY></TABLE><BR>
<CENTER>
<TABLE cols=3 border=1 NOSAVE>
<TBODY>
<TR vAlign=center align=middle NOSAVE>
<TD NOSAVE><B>Transverse</B> <BR>(XY-plane)</TD>
<TD NOSAVE><B>Sagittal</B> <BR>(YZ-plane)</TD>
<TD><B>Coronal</B> <BR>(XZ-plane)</TD></TR>
<TR vAlign=center align=middle NOSAVE>
<TD NOSAVE><IMG height=75 alt=transverse
src="XMedCon - Orientation_files/ltransverse.gif" width=75
lowsrc=images/ltransverse.gif>
<P><B>R</B>ight \ <B>P</B>osterior <BR>Slices -> +z
(H)</P></TD>
<TD><IMG height=75 alt=sagittal
src="XMedCon - Orientation_files/lsagittal.gif" width=75
lowsrc=images/lsagittal.gif>
<P><B>P</B>osterior \ <B>H</B>ead <BR>Slices -> +x
(L)</P></TD>
<TD><IMG height=75 alt=coronal
src="XMedCon - Orientation_files/lcoronal.gif" width=100
lowsrc=images/lcoronal.gif>
<P><B>R</B>ight \ <B>H</B>ead <BR>Slices -> -y
(A)</P></TD></TR></TBODY></TABLE></CENTER> Table:
Direction of row\column unit vector and
slices</TD></TR></TBODY></TABLE></CENTER>
<P> Note: Patient based system for
<B>supine head first = equipment based system</B> <BR> <BR> <BR><BR>
<CENTER>
<P><B><FONT size=+3>2. <U>PRONE</U></FONT></B></CENTER>
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