Teaching code

4S000368

Credits

7

Coordinator

Stefania Guariglia

Language

Italian

Moodle Seminars 0

The teaching is organized as follows:

Learning outcomes

To learn the physical basis of CT imaging, rules to use scannes respecting safety and radioprotection for patients examinations. In the course the technological aspects of CT scanners will be shown. Clinical indications and CT protcols will be presented referring to clinical indications. CT SCAN EQUIPMENT Provide basic knowledge on technology and architecture of CT scanners as well as on its dosimetry for a conscious use of this type of equipment. IMAGING CT To learn CT imging anatomy for different districts and organs. Protocols and dedicated studies for clinical indications will be discussed by viewing the anatomical aspects of organs in detail. CT: PHYSICAL PRINCIPLES AND RADIOPROTECTION Provide students with a basic physical knowledge of Computed Tomography and with the main techniques of reconstruction from projections, included the visualisation techniques. Analyze the radiation protection problems related to the use of CT. Analyze the methods of quantification of the image quality and his relationship with the operational parameters of the CT unit. MRI: ACQUISITION TECHNIQUE AND PROTOCOLS The student will be able to choose CT protocols depending on the pathology and the anatomical region to be analysed, modifying scan parameters properly according to the patient's features, minimising the dose. The student will also be able to appropriately process, menage and file CT images according to the right post-processing.

Program

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MM: APPERECCHIATURE TC
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Introduction Outlines of components, the techniques of acquisition and image reconstruction History of CT from a technological and clinical perspective In the gantry of a CT: the couch, the X-ray tube, the DAS system From single slice to multislice CT. Detectors in CT: scintillation, gas, synthetic. Physical principles, use in single and multi-slice CT, architecture benches. Collimation and slice thickness in CT examinations. Special technologies: quarter shift detector, flying focal spot. TC and cardiology: gating techniques Artifacts Dosimetry in CT. automatic current modulation, CTDI, DLP, factors that determine the dose to the patient. Cone Beam CT: technology and applications
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MM: PRINCIPI FISICI DELLA TC E RADIOPROTEZIONE
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- interaction of X-rays with matter : processes of interaction, Lambert-Beer law, attenuation coefficient - basic physical principles of CT : projection, multiple projections - techniques of image reconstruction from projections : Filtered Back Projection, iterative reconstructions - Hounsfield Units - volumetric reconstruction : 180-360 LI, Cone Beam CT - Dual Energy CT - CT image visualisation : windowing, MPR, 3D-rendering - dosimetric quantities : absorbed dose, equivalent dose, effective dose, collective dose, CTDI, DLP - patient radiation protection : radiation dose from CT exams, radiation protection guideline - worker radiation protection : scattered radiation, radiation doses from interventional practices - radiation dose and image quality : image quality quantification, dose-quality relationship - noise and 'Low Contrast Resolution' : image noise measurement, noise sources in CT, quantum noise, noise and operational parameters of the CT equipment relationship - spatial resolution and 'High Contrast Resolution' : measurement of spatial resolution, Modulation Transfer Function, spatial resolution and operational parameters of the CT equipment relationship
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MM: IMAGING TC
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TC anatomy
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MM: TECNICHE E PROTOCOLLI TC
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Bibliography

Examination Methods

oral examination