Maricopa Community Colleges  MRT263   19966-19995 
Official Course Description:   MCCCD Approval:  05/28/96  
MRT263      19966-19995 LEC 1 Credit(s) 1 Period(s)
Physics and Instrumentation of Computed Tomography
An overview into the physics, equipment, physical design, and image of Computed Tomography (CT). Conventional CT applications and operating principles. Overview into slip ring scanners. Contrast media use, concerns and administration. Prerequisites: Graduate radiologic technologist American Registry of Radiologic Technologists (A.R.R.T.) or permission of instructor.
 
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MCCCD Official Course Competencies:
 
MRT263   19966-19995 Physics and Instrumentation of Computed Tomography
1. Describe the fundamental principles of operation associated with Computed Tomography. (I)
2. Explain the five operational modes of Computed Tomography (CT)Imaging systems and future designs. (II)
3. Describe the components of a Computed Tomography (CT) imaging system to include gantry assembly, x-ray tube, detector assembly, computer, collimation, image display and recording systems. (III)
4. Identify and explain the image characteristics seen in a Computerized Tomography (CT) image. (IV)
5. Identify and explain specific factors that influence the quality of Computed Tomography (CT) images. (V)
6. Describe the operating principles, physics, and advantages of slip ring scanners. (VI)
7. Explain the safe administration of contrast media for specific Computed Tomography (CT) procedures to include types, patient history, risk factors, recommended dosages, and reactions. (VII)
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MCCCD Official Course Outline:
 
MRT263   19966-19995 Physics and Instrumentation of Computed Tomography
    I. Principles of operation
        A. History
        B. Translation
        C. Tissue attenuation
        D. Image reconstruction
        E. Image matrix
      II. Operational modes
          A. First generation
          B. Second generation
          C. Third generation
          D. Fourth generation
          E. Fifth generation
          F. Future trends
        III. Computerized tomography imaging systems
            A. Gantry assembly
            B. X-ray tube
            C. Detector assembly
            D. Collimation
            E. Image display and recording
          IV. Image characteristics
              A. Hounsfield units
              B. Image matrix
              C. PIXEL
              D. VOXEL
              E. Gray scale
              F. Windowing
            V. Image quality
                A. Spatial resolution
                B. Low contrast resolution
                C. System noise
                D. Linearity
                E. Spatial uniformity
                F. Quality assurance
              VI. Slip ring scanners
                  A. Physics
                  B. Advantages and disadvantages
                VII. Contrast media
                    A. Types
                      1. Ionic
                      2. Nonionic
                      3. Oral
                      4. Rectal
                    B. Chemical composition
                      1. Iodine
                      2. Benzoic acid
                      3. Cation
                      4. Anion
                    C. Routes of administration
                      1. Intravenous
                      2. Oral
                      3. Rectal
                    D. Patient history
                      1. Chart
                      2. Interview
                      3. Previous reactions
                    E. Risk factors
                      1. Hypersensitivity to iodine
                      2. Asthma
                      3. Diabetes mellitus
                      4. Multiple myeloma
                      5. Fair complexion
                    F. Contrast media procedures
                      1. Region of body
                      2. Benefit of contrast media
                      3. Dosages
                      4. Scanning delays
                    G. Contrast media reactions
                      1. Procedure
                      2. Documentation
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