Treatment Planning

MultiDimensionalTM Visualization
  • Simultaneous windows show a perspective view plus three reference views for enhanced qualitative analysis.
  • Three reference windows show selected Sagittal, Coronal or Transverse projections, or Beam's Eye Views.
  • The Perspective MultiDimensionalTM window defaults to a selected clinical projection and orientation.
  • Display control allows full manipulation by Rotation, Zoom and Navigation within each window.
  • Structures can be toggled on/off, displayed as surfaces, contours, or points each with selectable transparency.
  • MultiDimensionalTM structures are displayed with a selected color or Dose Mapped per the Dose Color Bar.
  • Orthogonal, sagittal, coronal and transverse planes may be inserted along with selected structures.
  • Sagittal, coronal, and transverse planes display CT cuts or Dose (or both) with Selectable Transparency.
  • An arbitrary plane placed in any orientation and location can display CT reconstructions and/or Dose.
  • The Clip Feature allows MultiDimensionalTM cut-away views of patient structures and dose, on any plane.
  • Beams may be shown (with blocks) as edges, surfaces, or points with selectable color and transparency.
  • Single or multiple dose levels are shown as lines, color wash, or dose cloud surfaces with any transparency.
  • For selected structures, line or bar charts are created for differential or integral Dose Volume Histograms.
  • Full 24-plane graphics allow True Transparencies, individually selectable for each structure and plane.
  • Clinically oriented panel controls MultiDimensionalTM displays with an easy recall of useful protocols.
Multiple Display Modes for Internal Structures
(61K)
View Beams
and Blocks
(62K)
Planes Clarify Dose and Structure References
(65K)
Transparent Structures
(61K)
Dose Applied to Structure
(62K)
Beams with Structure Dose
(61K)
Reconstructed CT Image with 3D View
(62K)

 

External Beam Planning
  • Combine modalities: photons with electrons, SAD/SSD, stationary, arcs, summations to 50 beams.
  • Accurate calculations for partial transmission blocks, central axis blocked or off-patient, extended treatment distance.
  • Easy plan summation allows composites to show conedowns, central axis shifts, plans with and without bolus.
  • High resolution (up to 10,000 points/plane) allows calculation of dose for the entire patient model.
  • Accurate calculations in buildup, field edge, block penumbra regions (101 fanlines / geometric modeling).
  • Beam isocenters and direction are positioned on screen, by mouse, keyboard, or digitizer
  • BEV & Plan View show collimator rotation, field, wedges, block edges overlaid on color-keyed structures.
  • Mirror beam function quickly creates an opposed field with blocks, wedges, and gantry and collimator angles.
  • Rulers, scales, and on-screen coordinates allow accurate patient measurements, reference point location.
  • Reference points are entered, edited by digitizer, or on screen with displayed coordinates.
  • Dose table shows the dose contributed by each beam and the total dose to each point.
  • Minimum, Mean, and Maximum dose are displayed for the Treatment Volume and every structure.
  • Simultaneous transverse, sagittal and coronal display allows interactive and rapid beam weight optimization.
  • Rapid offset selection for sagittal and coronal CT reconstructions (with dose) allows thorough plan analysis.
Sagittal and Coronal Views
(50K)
Digital Reconstructed Radiograph
(53K)
Blocked Beam Generator
(61K)
DBI Beam Setup
(44K)
Interactive Weighting
(54K)

 

CT based Patient Modeling
  • CT data is converted from any source to full resolution 512 x 512 x 12 bit format
  • 12 bit 14" x 17" Film Scanner option allows multiple films to be scanned for a single patient model
  • Arbitrary slice spacing allows finer spacing for region of treatment volume and critical structures
  • Any discernible edge (window and level control optimizes images) may be autocontoured
  • Structure names (up to 100) and densities are re-used by selection from your list
  • Operator may control the tightness of fit with an easy slide-bar adjustment of number of points used
  • Edit contours at any time: add, delete, or redraw selected sections or additional structures
  • Structure bifurcation is allowed with multiple segments of the same structure defined on a single level
  • Re-Select the Central Slice and contour additional CT levels at any time with or without internal structures
  • All CT slices (including those not contoured) are used for all CT slice image reconstructions
  • Erasable Magneto Optical Disk (MOD) archive stores CT images with plans for rapid retrieval
  • Flexible editing allows return to auto-contour program after planning or retrieval from MOD archive
Transverse Slice
(51K)
Slice Selection
(56K)

 

Virtual Simulation with Conformal BEV Planning
  • High-resolution BEV DRRs (Digitally Reconstructed Radiographs) are available for any beam orientation
  • Non-Coplanar beams may be utilized with any gantry, collimator and couch angle position
  • Blocks (to 20 / beam) may be entered or edited on-screen (BEV) with DRR verification of placement
  • Treatment margins may be entered using simulation films or on-screen using graphic TargetBallTM
  • System corrects for the transmission through all beam modifiers and full field scatter at multiple depths
  • Calculated profiles show the effectiveness of blocks for dose reduction at multiple patient depths
  • Scatter-integrated profiles are displayed with open fields and plotted (scaled) for dosimetry verification
  • Scaled template plots with selectable magnification simplify fabrication of conformal and MLC blocking

 

General
  • Machine-specific plans include MU, treatment-ready machine (gantry, couch, collimator) settings
  • Beam's Eye Views, Plan Views and all Plots use labeled and color coded structures (user defined colors)
  • Any beams, structures, and other plan data may be edited with no re-entry of other parameters
  • Image Capture provides simultaneous display of multiple plans for comparison and hard copy
  • Scaled color plots and screen color hardcopy provide complete treatment-ready documentation
  • On-Line Documentation (Index, Text windows) is available during your planning session
  • Remote on-line technical support provides rapid help for system and applications questions

 

Irregular Field Program
  • Modified Cunningham-Clarkson scatter summation model with digitizer input of blocked filed pattern
  • Correction is included for beam horns and intensity change off central axis (from flattening filter)
  • Up to 50 calculation points may be entered. Physics parameters are displayed and printed
  • Customized Calculation Point name list allows fast labeling and reduces errors during entry
  • Point SSD, depth, and names may be edited or all new points entered with digitizer or on the screen
  • Monitor Units or time is calculated and a scaled template with magnification allows block fabrication
Irregular Fields Display
(43K)

 

Brachytherapy Planning
  • High resolution dose calculations (81 x 81 = 6,561, splined to 768 x 768) at over 100 sources / second
  • Dose Table shows individual contribution per source to each reference point, and total point dose
  • 3-View "Dynamic Display" allows rapid interactive translation and rotation for selection of planes
  • 3-View "Static Display" allows rapid interactive keyboard input and re-selection of desired planes
  • Clinically labeled coordinate system allows easy identification of planes on-screen and on prints
  • Display graphics provides positive identification of source locations: in-plane, behind, in front of plane
  • Isodose levels are displayed as dose rate or total dose for specified implant time or permanent implants
  • Graphics utility programs allow user customization of screens and output plots and increased throughput
  • Easy and Fast - Typical plan time including input, calculations, edits, and sign-off: 20 minutes or less
Seeds:
Up to 500 (any isotope) individually or as ribbons, by keyboard or the digitizer
Stereo-shift or orthogonal film input. Alternate-film, or first-then-second film technique
Ribbon preplanning allows automatic placement of seeds along length
Tissue corrections: Meisberger polynomials, exponentials, or measured tables
Lines:
Up to 30 linear sources (any isotope) may be entered by keyboard or from films
Tissue corrections (Cs-137 & Ra-226) are provided by Meisberger polynomials
Sievert Integral tables are generated and stored for rapid summation of dose matrices
Linear Isodose View
(29K)
Linear Isodose View (Rotated)
(28K)
Seeds Isodose View
(32K)
Principal Planes View
(27K)
Dose Histogram
(48K)

 

Beam Data File Storage
  • Measured cross scans (ASCII files) may be transferred from most computerized dosimetry systems
  • Digitizer allows entry of scans for open and wedged fields: 6 depths per field size (8 to 40 user-defined)
  • Wedge files may include up to 40 cm wedges, custom wedges, half-beam blocks, and dynamic wedges
  • Cross scans may be on any scale. Input routine provides auto-centering and normalization functions
  • Any number of points may be input. System selects intersects for high-resolution 101 fanline storage
  • Keyboard entry for PDD, TAR0, and (optional) SAR data: plus machine-specific gantry information
  • Sterling equation fits Central Axis depth dose data, generates stored table (201 depths) to 50 cm depth
  • Stored output factors provide monitor unit calculations for external beam and irregular field programs

 

User Customization Programs
  • Special Program provides user selection of customized (32M) colors for isodose lines and structures
  • Utility allows user entry of list for rapid selection of reference point names for irregular field plans
  • Customized department list of standard dose values allows single-key entry during the planning session
  • Machine-specific information for treatment machines ensures correct documentation for clinical use

Home  E-Mail
[Home] [E-Mail]

Copyright © 2001 RAHD Oncology Products