MEDICAL PHYSICS LABORATORY
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- Versione italiana
- Academic year
- 2016/2017
- Teacher
- PAOLO CARDARELLI
- Credits
- 6
- Didactic period
- Primo Semestre
- SSD
- FIS/07
Training objectives
- This course aims to provide an introduction to the physics and mathematics of imaging systems used in clinical and biomedical research.
The main acquired knowledge will be:
Structure of a radiographic imaging system: x-ray tube, radiographic imaging detectors.
Evaluation of main detector parameters: noise, linearity curve, Modulation Transfer Function, Noise Power Spectrum, Detective Quantum Efficiency.
Radiographic image analysis.
Structure of a CT imaging system: CT system geometric calibration, data acquisition and reconstruction. Evaluation of
image spatial resolution and image contrast.
Structure of Positron Emission Tomography system: scintillation detectors, time coincidence,
calibration of detector geometry, evaluation of coincidence time resolution, system spatial resolution and system detection efficiency.
Structure of ultrasound imaging system. Prerequisites
- A knowledge of classical physics and laboratory courses (statistical analysis, informatics, electronics and radiation-matter interaction).
Course programme
- The course forecasts 48 hours of teaching divided in frontal lectures and tutorials.
Structure of a radiographic imaging system [27 h]: x-ray tube, measurement of x-ray tube spectrum and energy calibration. Imaging detectors: structure, noise measurement, exposure curve measurement.
Modulation Transfer Function (MTF) evaluation with slit camera, edge and star pattern phantom. Noise Power Spectrum (NPS) measurement.
Detective Quantum Efficiency (DQE) definition and theoretical evaluation for radiographic imaging system. Image contrast on mammographic phantom.
Structure of a CT imaging system [9h]:
Struttura di un sistema di imaging per CT [9 h]: CT system geometric calibration, data acquisition and reconstruction.
Evaluation of CT image spatial resolution and CT image contrast.
Structure of Positron Emission Tomography system [9h]: scintillation detectors, time coincidence,
calibration of detector geometry, evaluation of coincidence time resolution, system spatial resolution and system detection efficiency.
Structure of ultrasound imaging system [3h]: ultrasonic transducers and working principle. Ultrasound image formation. Didactic methods
- -Lectures and laboratory exercises.
Learning assessment procedures
- The aim of exam is to verify at which level the learning objectives previously described have been acquired.
The examination is divided in written and oral examination.
The written examination consists of writing the reports on main laboratory experiences, by ending the data analysis.
The oral examination is useful to evaluate the knowledge of the topics tackled in the course.
The final mark is the average of written and oral examination. Reference texts
- - The Physics of Medical Imaging, S. Webb, Institute od Physics Publishing, 1998.
- The Essential Physics of Medical Imaging. J. T. Bushberg, J. A. Seibert, E. M. Leidholdt, J. M. Boone, Lippincott Williams & Wilkins, seconda edizione (2002).
- Radiological Imaging, H.H. Barrett, W. Swindell, Academic Press, 1981.
- Medical Imaging, A. Macovski, Prentice Hall, 1983.
