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. 2020 Apr 30;12(4):e7904. doi: 10.7759/cureus.7904

Table 11. RT Projection from geometric analysis of PP (Table 10) along with normalization of the axis to keep AP intersection constant. Here we take the point source and plane data from Table 10, computed from PP, and then generate detector plane intersection. Because the detector plane is off-axis (not COA), a normalization procedure is computed as the corrected form, which forces all AP distances to a constant value (COA). Then the LAT/VERT of the corrected can be translated/rotated and positioned over the image.

AC = Anterior Commissure; PC = Posterior Commissure; Midline = Midline structure on Falx; Target: Left STN = Target on Left Subthalamic Nucleus; 15mmAboveTarget: Left STN = 15 millimeters above target along stereotactic axis of left subthalamic nucleus; 75mmAboveTarget: Left STN = 75 millimeters above target along stereotactic axis of left subthalamic nucleus; RPPT = Right Posterior Pin Tip; RPPB = Right POsterior Pin Base; RPSS = Right Posterior Sphere Superior; RPSI = Right Posterior Sphere Inferior; RFPT = Right Frontal Pin Tip; RFPB = Right Frontal Pin Base; RFSS = Right Frontal Sphere Superior; RFSI = Right Frontal Sphere Inferior; LPPT = Left Posterior Pin Tip; LPPB = Left Posterior Pin Base; LPSS = Left Posterior Sphere Superior; LPSI = Left Posterior Sphere Inferior; LFSS = Left Frontal Sphere Superior; LFSI = Left Frontal Sphere Inferior; LFPT = Left Frontal Pin Tip; LFPB = Left Frontal Pin Base; Relecdelayed = Right Electrode Tip; Rscrew2 = Right Screw 2; RScrew1 = Right Screw 1; COA = Coherent On-Axis.

          Plane Intersection        
    3D Objects   Uncorrected (Not COA)     Corrected (COA)
  AP LAT VERT AP LAT VERT 90 degree AP LAT VERT
AC 8.7 -0.8 -11.2 469.764 108.3856 -39.2966 5.462477 480.3335 -17.6189 -54.2145
PC -18.8 -0.4 -11.6 466.7983 119.7995 -42.7545 5.469725 480.3335 -5.82648 -57.674
Midline 5.7 -2.3 41.9 467.3978 106.4912 50.25612 1.981663 480.3335 -18.8321 35.38136
Target: Left STN -8.65882 -12.4276 -15.7972 473.3731 96.19302 -49.3322 6.141765 480.3335 -30.3306 -64.2548
15mmAboveTarget: Left STN -2.35342 -20.1082 -4.56108 476.7589 81.2621 -29.4368 5.639001 480.3335 -45.6281 -44.3498
75mmAboveTarget: Left STN 22.86817 -50.8308 40.38327 489.8675 23.45393 47.59255 6.113697 480.3335 -104.856 32.7165
LFPB 89.4 -46.1 -5.6 494.4183 15.17863 -24.6257 7.853849 480.3335 -114.03 -39.5365
LFPT 74.6 -30 -4.1 486.9663 42.63178 -23.0215 6.709144 480.3335 -85.5838 -37.9315
LFSI 77.8 -58 -34.2 499.9613 0.097427 -70.6215 9.841432 480.3335 -130.034 -85.5544
LFSS 79.7 -54.5 -21.1 497.9987 4.887825 -49.7261 8.998951 480.3335 -124.898 -64.6489
LPPB -92.9 -59.6 -2.7 487.4062 42.51261 -35.7165 7.134157 480.3335 -85.8133 -50.6326
LPPT -75.5 -45.9 0.5 481.8148 62.24453 -27.2393 6.145061 480.3335 -65.3062 -42.1513
LPSI -84 -65.3 -30.9 492.8405 28.97404 -91.2706 9.616863 480.3335 -100.3 -106.213
LPSS -85 -64.2 -19.6 491.4975 31.27634 -68.7843 8.696894 480.3335 -97.7272 -83.7163
RFPB 87.8 49 -4.5 457.478 151.8248 -21.3616 4.317042 480.3335 27.52096 -36.2708
RFPT 72.5 33.5 -2.9 461.7529 135.8253 -20.1775 4.249801 480.3335 10.96017 -35.0861
RFSI 77.1 60.6 -38.4 453.5102 172.7025 -73.0388 6.979179 480.3335 48.7118 -87.9728
RFSS 79.3 56.7 -19.7 454.3771 166.1063 -44.6754 5.55964 480.3335 42.11733 -59.5959
RPPB -94.1 48.5 -3.9 433.689 241.7109 -35.1035 7.051642 480.3335 120.5007 -50.0193
RPPT -77 34.1 -1 443.0508 206.1689 -28.28 5.637865 480.3335 83.7471 -43.1926
RPSI -86.6 58.3 -26.2 431.6135 254.3388 -76.4596 8.9513 480.3335 133.2336 -91.3953
RPSS -87.4 57.5 -21.5 431.5886 253.3842 -67.6729 8.59737 480.3335 132.3184 -82.6044
Relecdelayed -8.7 12.3 -16 462.5526 136.2857 -48.9331 5.653625 480.3335 11.1966 -63.8555
Rscrew2 42.1 40 41.4 453.9262 156.7134 48.17749 1.139342 480.3335 33.16547 33.30172
RScrew1 19.6 46.3 46.3 448.5058 175.8095 56.66613 1.773089 480.3335 53.0142 41.79445
Right Lateral Inferior Rod 0 140 -86 414.5516 327.3861 -158.305 14.19625 480.3335 208.2041 -173.28
Right Anterior Superior Rod 121.24 70 103 448.6916 165.9593 133.5392 3.562061 480.3335 43.45515 118.7045
Right Lateral Superior Rod 0 140 103 405.7873 323.4244 147.7571 10.03155 480.3335 206.6601 132.9292
Right Anterior Inferior Rod 121.24 70 -86 456.701 168.3064 -135.475 9.910497 480.3335 43.63674 -150.439
Left Lateral Inferior Rod 0 -140 -86 536.8558 -123.776 -179.637 17.69033 480.3335 -259.241 -194.623
Left Anterior Superior Rod 121.24 -70 103 500.4178 -26.5012 138.3634 9.221608 480.3335 -155.835 123.531
Left Lateral Superior Rod 0 -140 103 526.0007 -124.104 161.0163 14.06313 480.3335 -256.732 146.1948
Left Anterior Inferior Rod 121.24 -70 -86 509.1922 -25.4946 -143.216 13.22117 480.3335 -157.147 -158.184
Right Posterior Inferior Rod -121.24 -70 -86 495.9658 32.44787 -217.707 14.77749 480.3335 -97.7591 -232.711
Right Posterior Superior Rod -121.24 -70 103 483.5946 30.39441 184.6181 8.094983 480.3335 -96.5218 169.808
Left Posterior Superior Rod -121.24 70 103 412.2495 296.2062 174.9906 9.486716 480.3335 178.698 160.1758
Left Posterior Inferior Rod -121.24 70 -86 423.1228 300.8166 -202.163 15.09234 480.3335 180.3195 -217.159