Coronary computed tomography angiography with 320-row detector and using the AIDR-3D: initial experience.

Roberto Sasdelli Neto, Cesar Higa Nomura, Ana Carolina Sandoval Macedo, Danilo Perussi Bianco, Fernando Uliana Kay, Gilberto Szarf, Gustavo Borges da Silva Teles, Hamilton Shoji, Pedro Vieira Santana Netto, Rodrigo Bastos Duarte Passos, Rodrigo Caruso Chate, Walther Yoshiharu Ishikawa, João Paulo Bacellar Costa Lima, Marcelo Assis Rocha, Vinícius Neves Marcos, Bruna Bonaventura Failla, Marcelo Buarque de Gusmão Funari

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Coronary computed tomography angiography (coronary CTA) is a powerful non-invasive imaging method to evaluate coronary artery disease. Nowadays, coronary CTA estimated effective radiation dose can be dramatically reduced using state-of-the-art scanners, such as 320-row detector CT (320-CT), without changing coronary CTA diagnostic accuracy. To optimize and further reduce the radiation dose, new iterative reconstruction algorithms were released recently by several CT manufacturers, and now they are used routinely in coronary CTA. This paper presents our first experience using coronary CTA with 320-CT and the Adaptive Iterative Dose Reduction 3D (AIDR-3D). In addition, we describe the current indications for coronary CTA in our practice as well as the acquisition standard protocols and protocols related to CT application for radiation dose reduction. In conclusion, coronary CTA radiation dose can be dramatically reduced following the "as low as reasonable achievable" principle by combination of exam indication and well-documented technics for radiation dose reduction, such as beta blockers, low-kV, and also the newest iterative dose reduction software as AIDR-3D.

Original languageEnglish (US)
Pages (from-to)400-404
Number of pages5
JournalEinstein (São Paulo, Brazil)
Issue number3
StatePublished - Jul 2013

ASJC Scopus subject areas

  • Medicine(all)


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