3Hausleiter J, Meyer T. Estimated radiation dose associated with cardiac CT angiography[J]. JAMA, 2009, 301(5): 500-507.
4Brenner OJ, Hall EJ. Computed tomography-an increasing source of radiation exposure [J]. N Engl J Med, 2007, 357 (22): 2277- 2284.
5Raman SP. CT Dose Reduction Applications Available Tools on the Latest Generation of CT Scanners[J]. J Am Col Radiol, 2013, 10(1): 37-4l.
6Singh S, Kalra MK, Shenoy-Bhangle AS, et al. Radiation dose reduction with hybrid iterative reconstruction for pediatric CT[J]. Radiology, 2012, 263(2): 537-546.
7Richard S, Husarik DB. Towards task -based assessment of CT performance: system and object MTF across different reconstruction algorithms[J]. Med Phys, 2012, 39(7): 4115-4122.
9Payne JT. CT radiation dose and image quality [J]. Radiol Clin North Am, 2005, 43(6): 953-962.
10Lee CH, Goo JM. Radiation dose modulation techniques in the multi detector CT era: from basics to practice [J]. Radiographies, 2008, 28(5): 1451-1459.