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Related Experiment Videos

Computer-compatible patient contour plotter

L D Simpson, R Mohan, R Henderson

    Medical Physics
    |May 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    A new patient-contouring system uses a graphics digitizer for accurate contour mapping. This compact, mobile system offers precise measurements for improved treatment planning.

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    Area of Science:

    • Medical Imaging
    • Radiotherapy Physics

    Background:

    • Accurate patient contour data is crucial for effective radiation therapy planning.
    • Existing methods for contour acquisition can be time-consuming or lack precision.

    Purpose of the Study:

    • To describe a novel, compact, and cost-effective electromechanical system for patient contour acquisition.
    • To evaluate the accuracy and usability of the described system for radiotherapy applications.

    Main Methods:

    • The system employs a Numonics Model 224 graphics digitizer suspended over the patient.
    • It captures digital X and Y coordinates of patient contours in transverse or sagittal planes.
    • An analog X-Y plotter with a variable scale-down factor is integrated for display.

    Main Results:

    Related Experiment Videos

    • The system achieves inherent accuracy of +/-0.25 mm over a 60x90 cm reading area.
    • It provides precise digital contour data suitable for various imaging planes.
    • The system is designed for ease of use and integration with treatment planning systems.

    Conclusions:

    • This electromechanical patient-contouring mechanism offers a mobile, accurate, and affordable solution.
    • Its design facilitates seamless integration with computer-based treatment planning, enhancing radiotherapy workflow.
    • The system's precision and ease of use contribute to improved patient care in radiation oncology.