Table 2. A Summary of the Categorization Used in the Diagnosis and Management for LDCT-IR and SDCT.
| Characteristics | LDCT-IR (n=46) | SDCT (n=66) | p value |
|---|---|---|---|
| Number of stone | 60 | 114 | |
| Size of stone (mm) | 3.86 (1–8.56) | 3.91 (0.5–9.8) | 0.861 |
| <4 mm, n (%) | 32 (53.3) | 62 (54.4) | 0.895 |
| Site of stone, n (%) | 0.732 | ||
| Left | 31 (51.7) | 62 (54.4) | |
| Right | 29 (48.3) | 52 (45.6) | |
| Location of stone, n (%) | 0.215 | ||
| Kidney | 20 (33.3) | 52 (45.6) | |
| Upper ureter | 16 (26.7) | 21 (18.4) | |
| Mid ureter | 5 (8.3) | 4 (3.5) | |
| Lower ureter | 19 (31.7) | 37 (32.5) |
LDCT-IR, low-dose unenhanced computed tomography with iterative reconstruction technique; SDCT, standard-dose unenhanced computed tomography.