Riassunto
La tomografia computerizzata (TC) rappresenta una tecnica diagnostica fondamentale della medicina moderna che, a partire dalla sua introduzione nei primi anni Settanta [1] ha conosciuto uno sviluppo estremamente rapido e un’enorme espansione delle sue indicazioni cliniche. Tuttavia, a tale diffusione della TC si è accompagnato un parallelo aumento della dose radiante erogata alla popolazione: infatti, se nel 2000 il numero di esami TC eseguiti annualmente negli Stati Uniti era 40 milioni, nel 2010 tale numero superava i 70 milioni. Inoltre, benché gli esami TC rappresentino circa il 10% degli esami radiologici eseguiti annualmente, essi possono essere responsabili fino a circa la metà della dose radiante complessiva erogata alla popolazione. Ciò pone il problema sia di restringere l’impiego della TC a campi in cui esso sia indispensabile (giustificazione), sia di ridurre il più possibile la dose radiante erogata, compatibilmente con la necessità di ottenere informazioni diagnostiche valide in rapporto al quesito clinico (ottimizzazione) [2–6].
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Faggioni, L., Paolicchi, F., Neri, E. (2012). La dose in tomografia computerizzata. In: Caramella, D., Paolicchi, F., Faggioni, L. (eds) La dose al paziente in diagnostica per immagini. Imaging & Formazione. Springer, Milano. https://doi.org/10.1007/978-88-470-2649-0_4
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DOI: https://doi.org/10.1007/978-88-470-2649-0_4
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