Article Figures & Data
Figures
- FIGURE 1.
A 59 y old with metastatic ileocecal carcinoid tumor. (A) Anterior 68Ga-DOTATATE PET maximum-intensity-projection image showing intense somatostatin receptor avidity greater than that of the liver within a conglomerate of central abdominal lymph nodes. Axial contrast-enhanced CT images of abdomen with fused PET/CT images at same level illustrating examples of retroperitoneal (B and C) and central mesenteric lymph nodes (D and E) (arrows) that showed somatostatin receptor positivity on PET/CT. Scale bars = SUVmax = 14.
- FIGURE 2.
Plot of 177Lu activity concentration in ascitic fluid as function of time. Estimated effective half-life in ascitic fluid is 2.9 d.
Tables
Radiation Energy (keV) I (%) β− 176.5 12.2 β− 384.9 9.1 β− 497.8 78.6 γ 112.9 6.4 γ 208.4 11.0 I (%) = intensity percentage.
Half-life of 177Lu = 6.7 D.
- TABLE 2.
Mean Activity Concentration Based on Liquid Scintillation Measurements of Ascitic Fluid Samples Obtained at Various Intervals After Treatment Doses of 177Lu-DOTATATE
Postinfusion day Activity concentration (Bq/mL) Treatment 1 (n = 5) Treatment 2 (n = 10) Treatment 3 (n = 10) Mean 3 194.3 ± 15.5 190.2 ± 17.8 141.3 ± 10.7 175.3 ± 25.9 7 — — 59.6 ± 5.6 59.6 ± 5.6 10 22.2 ± 2.2 24.80 ± 3.3 29.6 ± 2.6 25.5 ± 4.8 13 — 11.1 ± 2.6 13.7 ± 1.5 12.4 ± 3.0 20 — 3.0 ± 0.4 — 3.0 ± 0.4
