RADON 106 Imaging and Processing in Radiation Oncology • 3 Cr.
Content is designed to establish a knowledge base in factors that govern and influence the production and recording of radiographic images for patient simulation, treatment planning and treatment verification in radiation oncology. Radiation oncology imaging equipment and related devices will be emphasized.
After completing this class, students should be able to:
- Describe the various types of digital receptors distinguishing between cassette-based systems and cassette-less systems using terminology associated with digital imaging systems.
- Describe the components and the operation of a conventional simulator.
- Compare the advantages and limits of each digital imaging detector, evaluate the spatial resolution and dose effectiveness.
- Describe the fundamental physical principles of exposure for digital detectors.
- Describe the selection of technical factors to ensure appropriate receptor exposure, and relate the receptor exposure indicator values to technical factors, part/beam/plate alignment and patient exposure.
- Describe image acquisition precautions necessary for digital imaging to include background and scatter radiation, and errors associated with grid cutoff and Moiré effect.
- Describe the various image processing employed for digital images and common limitations and technical problems encountered when using digital imaging systems.
- Examine the potential impact of digital imaging systems on patient exposure and methods of practicing the as low as reasonably achievable (ALARA) concept with digital systems.
- Describe picture archiving and communications system (PACS), digital imaging and communications in medicine (DICOM) and their functions.
- Apply techniques to enhance image details and reduce image distortion, and analyze relationships of factors affecting image contrast, density and resolution to determine optimal image quality for a conventional simulator.
- Determine artifact types, cause and preventive measures needed for soft copy images and hardcopy films.
- Explain the basic principles of image formation for each of the following modalities: MR, CT, ultrasound and nuclear medicine.