title: Cardiac CT angiography--radiation dose-how effective are we in reducing radiation dose from cardiac CT angiography?
authors.affiliation: Cardiac MR PET CT Program, Division of Cardiology and Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.
authors.forename: Quynh A
authors.initials: QA
authors.lastname: Truong
authors.forename: Emily
authors.initials: E
authors.lastname: Siegel
authors.forename: Christopher P
authors.initials: CP
authors.lastname: Cannon