Feasibility of low radiation dose retrospectively-gated cardiac CT for functional analysis in adult congenital heart disease.

ABSTRACT:

Background

The use of cardiac computed tomography (CT) in the evaluation of adult congenital heart disease patients is limited due to concerns of high radiation doses. The purpose of this study was to prospectively assess whether low radiation dose cardiac CT is feasible to evaluate ventricular systolic function in adults with congenital heart disease.

Methods

The study group included 30 consecutive patients with significant congenital heart disease who underwent a total of 35 ECG-gated cardiac CT scans utilizing a 320-detector row CT scanner. Each study included a non-contrast scan and subsequent contrast-enhanced retrospectively-gated acquisition. Effective radiation dose was estimated by multiplying the dose length product by a k-factor of 0.014mSv/mGycm.

Results

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SUBMITTER: Groves DW 

PROVIDER: S-EPMC6323633 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature