General Course Information for RTT 300: Medical Imaging

Course: RTT 300 - Medical Imaging
Textbook: For the correct edition of the textbook assigned to a specific class, go to:

Course Prerequisite(s):
Course Description: 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. General radiography, computerized tomography, sonography and nuclear medicine imaging modalities and equipment will be emphasized. An overview of radiation protection will be provided.
Course Learning Outcomes:
  • Differentiate between electromagnetic and particulate radiations and the interactions of electrons and the target material.
  • Explain the interactions of x-rays and matter.
  • Determine how changes in kVp, mAs, time and distance affect the x-ray beam and influence contrast, density, detail and resolution.
  • Identify other factors that influence quality and quantity of the x-ray beam.
  • Compare image acquisition and extraction of cassette-based vs. cassetteless systems.
  • Compare conventional radiography systems with digital radiography systems.
  • Determine factors utilized to reduce patient dose in radiography and computed tomography.
  • Critique radiographic films for contrast, density, detail, and distortion.
  • Explain the basic principles of sonography and describe the role in radiation therapy.
  • Explore the role of sonography in diagnosis and work-up of neoplastic diseases.
  • Explain the basic principles of Computed Tomography (CT).
  • Describe the role of CT in the diagnosis and work-up of neoplastic diseases.
  • Explain the basic principles of Magnetic Resonance Imaging.
  • Evaluate the role of Magnetic Resonance Imaging in the diagnosis and work-up of neoplastic diseases.
  • Describe the utilization of fused images for treatment planning in radiation therapy.
  • Explain the basic principles of Nuclear Medicine.
  • Describe the role of Nuclear Medicine imaging in the diagnosis and work-up of neoplastic disease.
Specified Program Learning Outcomes:
    • Demonstrate patient, radiation and equipment safety at all times.
    • Demonstrate patient, radiation, and equipment safety at all times.
    • Demonstrate patient, radiation, and equipment safety at all times.
    • Demonstrate patient, radiation, and equipment safety at all times.

Students with Disabilities:
Students seeking special accommodations due to a disability must submit an application with supporting documentation, as explained under this subject heading in the General Catalog. Instructors are required to provide such accommodations if they receive written notification from the University.

Writing Across the Curriculum:
Students are expected to demonstrate writing skills in describing, analyzing and evaluating ideas and experiences. Written reports and research papers must follow specific standards regarding citations of an author's work within the text and references at the end of the paper. Students are encouraged to use the services of the University's Writing Center when preparing materials.

The following website provides information on APA, MLA, and other writing and citation styles that may be required for term papers and the like:

National University Library:
National University Library supports academic rigor and student academic success by providing access to scholarly books and journals both electronically and in hard copy. Print materials may be accessed at the Library in San Diego or through document delivery for online and regional students. Librarians are available to provide training, reference assistance, and mentoring at the San Diego Library and virtually for online or regional students. Please take advantage of Library resources:


Contact the Library:

  • (858) 541-7900 (direct line)
  • 1-866-NU ACCESS x7900 (toll free)

Use the Library Training Tools (on the Library Homepage) for additional help

  • Recorded class presentations
  • Tutorials & Guides (APA/MLA, Peer-Review, and more)

Plagiarism is the presentation of someone else's ideas or work as one's own. Students must give credit for any information that is not either the result of original research or common knowledge. If a student borrows ideas or information from another author, he/she must acknowledge the author in the body of the text and on the reference page. Students found plagiarizing are subject to the penalties outlined in the Policies and Procedures section of the University Catalog, which may include a failing grade for the work in question or for the entire course. The following is one of many websites that provide helpful information concerning plagiarism for both students and faculty:

Ethical behavior in the classroom is required of every student. The course will identify ethical policies and practices relevant to course topics.

Students are expected to be competent in using current technology appropriate for this discipline. Such technology may include word processing, spreadsheet, and presentation software. Use of the internet and e-mail may also be required.

Learning to work with and value diversity is essential in every class. Students are expected to exhibit an appreciation for multinational and gender diversity in the classroom.

As a diverse community of learners, students must strive to work together in a setting of civility, tolerance, and respect for each other and for the instructor. Rules of classroom behavior (which apply to online as well as onsite courses) include but are not limited to the following:

  • Conflicting opinions among members of a class are to be respected and responded to in a professional manner.
  • Side conversations or other distracting behaviors are not to be engaged in during lectures, class discussions or presentations
  • There are to be no offensive comments, language, or gestures