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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: J Comput Assist Tomogr. 2015 Nov-Dec;39(6):907–913. doi: 10.1097/RCT.0000000000000295

Table 2.

Comparison of PDA Visualization Ratings in two different patient sets.

Variable Rating Imaging Seriesa,b,c,d,e
120 kVp 50 keV 60 keV 70 keV 80 keV Iodine
Primary Tumor Visualization Not rated 1(.%) 3(.%) 4(.%) 2(. %)
Excellent 2(5%) 1(2.6%) 1(2.7%) 21(55.3%)
Good 15(37.5%) 5(12.8%) 18(48.6%) 11(30.6%) 5(13.2%)
Fair 14(35%) 10(25%) 17(43.6%) 10(27%) 11(30.6%) 6(15.8%)
Poor 8(20%) 20(50%) 9(23.1%) 5(13.5%) 9(25%) 3(7.9%)
Markedly limited 1(2.5%) 10(25%) 7(17.9%) 3(8.1%) 5(13.9%) 3(7.9%)
a

50 keV had significantly worse rating than 60, 70, 80, and Iodine (p<.0001)

b

60 keV had significantly worse rating than 70 keV and Iodine (p<.0001)

c

70 keV had significantly better rating than 80 keV (p=0.001) and iodine had higher ratings than 70keV (p<.0001)

d

80 keV had significantly worse rating than Iodine (p<.0001)

e

120 kVp was not significantly different than 70 keV (p=0.71)

P-values incorporate the Bonferroni adjustment for multiple comparisons.