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Stone Visibility with Different Iodine Concentrations and Peak Kilovoltage Pairs
| kVp Pair | Iodine Concentration |
||||
|---|---|---|---|---|---|
| 21 mg/dL | 43 mg/dL | 65 mg/dL | 85 mg/dL | 107 mg/dL | |
| 80-140 (n = 80) | 79 (99) | 74 (93) | 77 (96) | 75 (94) | 2 (3) |
| 100-140 (n = 80) | 78 (98) | 76 (95) | 79 (99) | 75 (94) | 79 (99) |
Note—Data are number of visible stones and visibility rate (%) in parentheses across four CT scans with two different collimations and with or without oil gel around the phantom of 20 stones.
