Diagnostic accuracy of single-, tri-, and four-phasic CT urography and radiation dose assessment: a systematic review and meta-analysis
Tri-phase CTU provides the most favorable balance between diagnostic performance and radiation exposure, and single-phase CTU may be appropriate for patients with microscopic haematuria and a low pre-test probability of urothelial malignancy, whereas four-phase CTU may be reserved for patients with a high pre-test prob...