MEDRADSC 3DA3 Lecture Notes - Lecture 9: Modified Discrete Cosine Transform, Blood Sugar, Hyperglycemia
8 Apr 2020
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Fusion technology: pet/ct, spect/ct, mr/ct, the addition of ct gives us very detailed and specific information, when finding hotspots the ct helps to add where these hot spots are found in the body. Pet/ct: prototype was designed in 1998, 2011-2012, there were 62 000 pet and pet/ct exams performed in canada, over 98% of hospital settings, the use of this diagnostic tool is increasing. Design of machine: both ct and pet gantry are positioned together in the same housing, patient bed and mdct. Pet: fdg will accumulate in tissues that are actively metabolizing glucose, deoxy-fluoro-d-glucose (fdg) most common used, provides functional and metabolic information. Information is computed mathematically to generate a series of tomographic emission images: fusion with ct changes the tumor margins seen this will help with radiation treatment planning. Sites for usage: lungs, lymphoma, cardiac tissue, brain tissue (epilepsy, reflected as hypometabolism (decreased) Pet/ct image fusion: patient can unergo hybrid pet/ct scan.
