BioMed Research International / 2018 / Article / Tab 1

Research Article

Image Quality and Patient-Specific Organ Doses in Stone Protocol CT: A Comparison of Traditional CT to Low Dose CT with Iterative Reconstruction

Table 1

Patient demographics and imaging history between modalities.

FBP-CT (n=250)IR-CTp value
(n=90)

Male gender (%)133(53)45(50)p = 0.61

Mean age (range)53.4 (18-92)50.2 (19-92)p = 0.31

BMI (SD)30.1(3.2)30.5 (2.9)p = 0.73

Race (%)
Caucasian198(79)71(79)p = 0.95
African American37(15)10(11)p = 0.28
Hispanic13(5)5(6)p = 0.89
Asian1(1)1(1)p = 0.45
Unknown1(1)3(3)p = 0.18

Recent CT (SD)2.5(0.5)1.9(0.4)p = 0.15

Key: CT, computed tomography; FBP, filtered back projection; IR, iterative reconstruction; SD, standard deviation.
: “Recent” CT refers to the mean number of abdominal CT scans performed at our institution over the previous five years, excluding the present imaging.

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