Table 1.
Detectable depth and NIRAF intensity of unexposed PGs.
| Variable | No. (%) of PGs; n = 51 |
Depth, mm | NIRAF intensity, au | ||
|---|---|---|---|---|---|
| Mean ± SD (range) | p | Mean ± SD (range) | p | ||
| Depth | 51 | 1.23 ± 0.73 (0.35–3.05) | |||
| <0.001* | |||||
| Before dissection | 51 | 3.13 ± 1.07 (1.47–6.34) | |||
| After dissection | 51 | 4.88 ± 2.29 (2.06–11.47) | |||
| Location of the PG | 0.061 | 0.209 | |||
| Superior | 25 (49.0) | 1.42 ± 0.79 (0.60–3.05) | 3.33 ± 1.15 (1.60–6.34) | ||
| Inferior | 26 (51.0) | 1.04 ± 0.62 (0.35–2.45) | 2.95 ± 0.99 (1.47–6.03) | ||
| Overlying tissue | <0.001* | 0.369 | |||
| Connective | 26 (51.0) | 0.70 ± 0.21 (0.35–1.15) | 3.00 ± 1.23 (1.47–6.34) | ||
| Fat | 25 (49.0) | 1.77 ± 0.67 (0.50–3.05) | 3.27 ± 0.90 (1.83–6.03) | ||
| Brightness | 0.964 | 0.001* | |||
| Faint | 10 (19.6) | 1.24 ± 0.92 (0.35–2.80) | 2.14 ± 0.48 (1.60–3.16) | ||
| Bright | 41 (80.4) | 1.22 ± 0.69 (0.35–3.05) | 3.38 ± 1.04 (1.47–6.34) | ||
*p <0.05. SD, standard deviation; NIRAF, near-infrared autofluorescence; PG, parathyroid gland.