Keywords:
Abdomen, Pancreas, Oncology, CT, Contrast agent-intravenous, Computer Applications-Detection, diagnosis, Cancer, Tissue characterisation
Authors:
A. Mazzaro1, G. A. Zamboni1, F. Lombardo2, M. Chincarini1, R. Pozzi-Mucelli1; 1Verona/IT, 2Bolzano/IT
DOI:
10.1594/ecr2018/C-2985
Results
Results
Among the 42 patients,
follow-up MDTCs showed 19 patients with local recurrence and 22 patients with post-surgical scar tissue which remained stable for size and imaging features.
Average age at the time of examination was 66 for the local recurrence group and 65,4 for the scar tissue group.
Mean longest diameter of the post-surgery solid tissue in patients with tumor recurrence was 35.5±4.8 mm,
significantly larger than 21.4±1.6 mm measured in patients with stable fibrosis (p=0,0053).
|
RECURRENCE
|
FIBROSIS
|
p
|
MEAN LONGEST DIAMETER
|
35.5 (±4.8) mm
|
21.4 (±1.6) mm
|
0.0053
|
MEAN ABSOLUTE ENHACEMENT
|
10.97 (±0.77) HU
|
21.43 (±1.46) HU
|
< 0,0001
|
ENHANCEMENT RATIO
|
+ 26,14%
|
+72.15%
|
< 0,0001
|
Mean absolute enhancement from the arterial phase to venous phase (HUven-HUart) was 10.97±0.77 HU for tumor recurrence and 21.43±1.46 HU for fibrotic tissue (p<0,0001). The enhancement ratio was + 26,14% for the former and +72.15% for the latter (p<0,0001).
No significant difference was observed between the two groups for the presence of metastases,
pathologically enlarged lymph-nodes or peritoneal carcinomatosis.