Table 1.
Patient characteristics and number of sentinel lymph nodes detected by using superparamagnetic iron oxide nanoparticles and a handheld magnetometer
| Age [year] | Preoperative PSA [ng/ml] | cT | Preoperative Gleason score | pT | pN | Postoperative Gleason score | LNs removed | SLNs removed | LNs with metastasis | SLNs with metastasis | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 67 | 16.59 | T1c | 7 (4 + 3) | pT3b | N1 | 7 (3 + 4) | 11 | 10 | 5 | 5 |
| 2 | 61 | 17.9 | T2b | 7 (3 + 4) | pT3b | N0 | 7 (4 + 3) | 16 | 3 | 0 | 0 |
| 3 | 63 | 1.31 | T2c | 7 (4 + 3) | pT3b | N0 | 7 (4 + 3) | 23 | 14 | 0 | 0 |
| 4 | 63 | 50.5 | T2b | 7 (3 + 4) | pT2c | N0 | 7 (4 + 3) | 14 | 5 | 0 | 0 |
| 5 | 65 | 4.97 | T1c | 7 (3 + 4) | pT2c | N0 | 7 (3 + 4) | 15 | 0 | 0 | 0 |
| 6 | 53 | 9.16 | T1c | 7 (3 + 4) | pT2a | N0 | 7 (3 + 4) | 13 | 5 | 0 | 0 |
| 7 | 66 | 11.31 | T1c | 7 (3 + 4) | pT3a | N1 | 7 (3 + 4) | 11 | 7 | 1 | 1 |
| 8 | 66 | 7.9 | T1c | 7 (3 + 4) | pT2c | N0 | 7 (3 + 4) | 14 | 5 | 0 | 0 |
| 9 | 55 | 5.86 | T2b | 7 (4 + 3) | pT2c | N0 | 7 (4 + 4) | 17 | 4 | 0 | 0 |
| 10 | 63 | 6.12 | T1c | 7 (3 + 4) | pT2c | N0 | 7 (3 + 4) | 17 | 9 | 0 | 0 |
| 11* | 75 | 12.2 | T2c | 7 (3 + 3) | pT3b | N1 | 7 (4 + 3) | 18 | 0 | 1 | 0 |
| 12 | 67 | 19.63 | T1c | 6 (3 + 3) | pT2a | N0 | 7 (3 + 4) | 19 | 7 | 0 | 0 |
| 13 | 64 | 12.9 | T1c | 6 (3 + 3) | pT2c | N0 | 7 (3 + 4) | 19 | 12 | 0 | 0 |
| 14 | 63 | 48.68 | T3a | 7 (4 + 3) | pT4 | N1 | 9 (4 + 5) | 32 | 2 | 1 | 1 |
| 15 | 68 | 12.1 | T2b | 7 (4 + 3) | pT3b | N1 | 9 (4 + 5) | 15 | 12 | 5 | 5 |
| 16 | 78 | 4.88 | T2c | 8 (4 + 4) | pT3b | N1 | 8 (4 + 4) | 19 | 7 | 2 | 2 |
| 17$ | 72 | 14.5 | T2a | 7 (4 + 3) | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
| 18 | 68 | 29.18 | T2c | 10 (5 + 5) | pT3b | N1 | 9 (4 + 5) | 23 | 9 | 1 | 1 |
| 19 | 72 | 30.97 | T2c | 7 (3 + 4) | pT3a | N0 | 7 (4 + 3) | 24 | 8 | 0 | 0 |
| 20 | 53 | 13.98 | T1c | 7 (3 + 4) | pT2c | N0 | 7 (3 + 4) | 14 | 7 | 0 | 0 |
| Median | 65.5 | 12.55 | 17 | 7 | 1§ | 1.5§ |
PSA prostate specific antigen; c clinical values; p pathological values; LN lymph node; SLN sentinel lymph node
* This patient had undergone a transurethral prostate resection in the past
$ This patient did not undergo prostatectomy and lymphadenectomy
§ Patients with lymph node metastases