MEDRADSC 3DA3 Lecture Notes - Lecture 9: Thyroid, Blood Sugar, Oncology
8 Aug 2020
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Advanced ct - lecture 9a - fusion technology. Fusion technology: pet/ct, what it is, how its used, spect/ct, mr/ct. Ct scan provides a detailed picture of the internal anatomy that reveals the location, size and shape of abnormal cancerous growths anatomy: alone, each imaging test has particular benefits and limitations but when the results of. Pet and ct scans are "fused" together, the combined image provides complete information on cancer location and metabolism. Positron emission tomography (pet: provides functional and metabolic information. Physics of p. e. t: radiopharmaceutical is administered, travels through the body, accumulates in areas of increased energy demand, positron (+ve charge) emitted to stabilize atom, emitted positron will meet with an electron to form a positronium. P. e. t scanner: ring of detectors, special circuitry to identify photon pairs produced during annihilation, a photon pair is detected by 2 detectors, decay event occurred somewhere in a straight line between the 2 detectors.
