. Author manuscript; available in PMC: 2017 May 24.

Published in final edited form as: Nat Rev Urol. 2016 Aug 31;13(11):654–662. doi: 10.1038/nrurol.2016.154

Table 1.

Comparison of different imaging modalities for kidney stones

Imaging modality	Sensitivity^* (%)	Specificity^* (%)	Radiation exposure (mSv)²⁵	Cost multiple relative to that of KUB²⁵
CT	95 (REF 12)	98 (REF 12)	10.0	10
Low-dose CT	95 (REF 12)	97 (REF 12)	~3.0	10
Ultrasonography	84 (REF 25)	53 (REF 25)	None	5
KUB	57 (REF 25)	76 (REF 25)	0.7	1
MRI	82 (REF 25)	98 (REF 25)	None	30

KUB, kidney, ureters, and bladder plain film.

Published sensitivity and specificity vary widely in the literature for some modalities; therefore, these values are derived from values published by the American College of Radiography and American Urological Association, which have obtained them from pooled data analysis