Keywords:
Abdomen, Gastrointestinal tract, Oncology, CT, Contrast agent-intravenous, Diagnostic procedure, Cancer, Endocrine disorders, Neoplasia
Authors:
N. Makeeva-Malinovskaya, G. Karmazanovsky, A. Kochatkov; Moscow/RU
DOI:
10.1594/ecr2013/C-2318
Results
NEN of pancreas are heterogeneous group of tumors in terms of their dynamics of contrast medium accumulation.
No reliable difference of the accumulation gradient for NEN of pancreas with G1 and G2 grades (fig.
2,
3).
Accumulation gradient for G1: -0.2; 13.4; 8.0; 12.6 and standard deviation: 13.2; 36.2; 21.8; 10.4 (by four study phases).
Accumulation gradient for G2: 4.3; 43.8; 28.7; 20.0 and standard deviation: 16.5; 56.6; 21.7; 15.0 (by four study phases) (fig.
4).
G3 grade (fig.
5) and pancreatic cancer (fig.
6) have significant low accumulation gradient.
Accumulation gradient for G3: 8; -7.5; -9.5; -3 and standard deviation: 8.5; 24.7; 31.8; 7.1 (by four study phases).
Accumulation gradient for pancreatic cancer: -4.7; -34; -25; -1.2 and standard deviation: 10.8; 26.3; 19.1; 16.2 (by four study phases) (fig.
7).
NEN of pancreas size: G1 28.7 mm,
standard deviation 19.4,
G2 42.2 mm,
standard deviation 14.0,
G3 53.7 mm,
standard deviation 47.4.
(fig.8).
High standard deviation shows that size could not be used as standalone criterion for differentiation of the grade of NEN of pancreas.