TABLE 2

Regional VT in Test Scans

Regional VT (mL/cm3)Minimum scan duration (min)
11C-EKAP (n = 6)11C-FEKAP (n = 6)11C-EKAP (n = 6)11C-FEKAP (n = 6)
Region1TC2TCMA11TC2TCMA1MA1MA1
Amygdala19.9 (22%)18.1* (6%)21.6 (25%)9.1 (33%)9.0 (39%)9.6 (36%)9090
Insula13.9 (21%)14.7 (19%)15.2 (21%)6.4 (27%)6.8 (31%)7.1 (28%)8070
Anterior cingulate cortex13.1 (13%)13.8 (13%)14.2 (14%)5.8 (21%)6.2 (22%)6.5 (23%)7070
Globus pallidus10.7 (19%)11.5 (18%)11.7 (19%)4.6 (28%)5.3 (29%)5.4 (30%)7060
Temporal cortex9.8 (18%)11.0 (21%)10.7 (18%)4.3 (25%)4.8 (27%)5.0 (28%)8090
Putamen9.3 (18%)10.8 (21%)10.3 (18%)3.9 (23%)4.6 (26%)4.8 (26%)80100
Frontal cortex9.0 (19%)10.3 (23%)9.9 (19%)4.1 (25%)4.6 (27%)4.8 (27%)8090
Hippocampus7.6 (21%)9.1 (26%)8.8 (22%)3.2 (23%)3.8 (27%)4.1 (27%)8090
Occipital cortex7.5 (20%)8.7 (21%)8.3 (19%)3.2 (26%)3.8 (29%)3.9 (30%)8090
Caudate7.5 (24%)8.1 (26%)8.0 (24%)2.9 (27%)3.4 (29%)3.5 (30%)5080
Posterior cingulate cortex6.8 (27%)7.2 (25%)7.6 (26%)2.7 (29%)3.1 (30%)3.3 (30%)80100
Cerebellum5.7 (32%)6.6 (29%)6.4 (29%)2.1 (34%)2.6 (32%)3.0 (37%)80100
Thalamus4.8 (20%)5.2 (15%)5.4 (20%)1.5 (22%)1.9 (20%)2.3 (39%)80110
  • * n = 4 (relative SE > 10% was excluded).

  • n = 2 (relative SE > 10% was excluded).

  • n = 5 (relative SE > 10% was excluded).

  • Data in parentheses are percentage coefficient of variation across subjects.