TABLE 2

Summary of Patient Characteristics and SLN Analysis (Size, Activity, Depth, Pathologic Analysis)

Patient no.Age (y)Cancer typeTumor size (mm)Injected dose (MBq)Conventional γ-camera SLN (n)Mini γ-camera SLN (n)Surgery SLN (n)SLN size (mm)SLN activity (kBq)*Camera depth (mm)Surgery depth (mm)Pathologic analysis§
166Ductal112422215 × 106523–4745pN0
10 × 41934–5055pN0
268Ductal22011115 × 102626–4545pN0
340Ductal102411217 × 124433–5915pN0
10 × 6820pN0
450Ductal272122210 × 5632–3625pN0
15 × 82020pN1
568Lobular262422310 × 53036–7850pN0
25 × 153035pN1
10 × 52235pN0
651Lobular152412315 × 83820–4535pN0
10 × 43120pN0
16 × 102820pN0
747Ductal102411125 × 165536–4235pN0
845Ductal122411120 × 207062–6775pN0
972Ductal152411115 × 1512456–5655pN0
1039Lobular152411118 × 104452–5655pN0
10 × 64758–7585pN1
1158Lobular241912320 × 12560pN1
6 × 4440pN0
  • * Estimation of remaining activity of SLN taking into account geometric detection efficiency of γ-counter.

  • Estimation of SLN depth using information given by FWHM of fitted gaussian curves on mini γ-camera image profiles. (— = immeasurable because required information was not fully contained in 50 × 50 mm2 FOV).

  • SLN depth measured with ruler during surgery.

  • § Union Internationale Contre le Cancer classification pTNM.