Radiation exposure in standard and high-resolution chest CT scans.

van der Bruggen-Bogaarts, B A; Broerse, J J; Lammers, J W; van Waes, P F; Geleijns, J · Chest · 1995

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Abstract

It has been suggested that radiation doses due to high-resolution computed tomography (HRCT) of the chest are considerably higher than those from conventional CT. We compared the effective dose (E, mSv) in conventional chest CT (10-mm contiguous slices) and HRCT (1.5-mm slices, gap 10 mm). In our study, the effective dose from a HRCT (0.98 mSv) is about 6.5 times less than the effective dose from a standard CT scan (6.5 mSv), and only a factor 12 higher than from a conventional chest examination (0.085 mSv).

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