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Riassunto

Se l’evoluzione da TC convenzionale a TC spirale ha rappresentato un progresso importante della tecnologia TC, che ha rivoluzionato lo schema di generazione delle immagini dall’acquisizione diretta di una serie di strati indipendenti alla ricostruzione di una successione di immagini da un volume continuo di dati, il passaggio da TC spirale a singolo strato a TC spirale multistrato (TCMS) può essere visto come un’estensione dei concetti teorici alla base della tecnologia spirale, che ha portato a una drastica riduzione del tempo di acquisizione delle immagini e — in maniera equivalente — consente di ottenere dataset di immagini a elevata risoluzione spaziale lungo l’asse longitudinale in tempi ridotti. Come vedremo, ciò ha avuto importanti ripercussioni sulle applicazioni cliniche della TCMS, sui protocolli di acquisizione delle immagini e di somministrazione del mezzo di contrasto (mdc) nei vari ambiti diagnostici e sul modo di interpretare i dati ottenuti. Nei paragrafi seguenti verranno illustrati i principi dell’acquisizione delle immagini degli scanner TCMS e le loro implicazioni operative.

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Faggioni, L., Lazzarini, R., Neri, E. (2010). TC multistrato. In: Elementi di tomografia computerizzata. Springer, Milano. https://doi.org/10.1007/978-88-470-1697-2_4

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  • DOI: https://doi.org/10.1007/978-88-470-1697-2_4

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