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Mirko D'Onofrio, advanced multiparametric imaging in pancreas, jfim ifupi milan 2018
1. ADVANCED IMAGING IN
PANCREATIC LESIONS
Department of Radiology
University Hospital G.B. Rossi, Verona, Italy
Prof. Mirko D'Onofrio
1ST ITALIAN-FRENCH UPDATE IMAGING – IFUPI
MILAN March 23-24 2018
www.jfim.org
29. Adenok ≤ 2 cm 27% isodense CT
Well differenziated 58% isodense CT
Secondary signs 76% < 20 mm vs 99% 21-30 mm (p < 0.05)
Isodense Adenok pathology:
Well-differentiating cancer and loose fibrosis
34. Ductal adenocarcinoma
characterization
Clinical scenario: incidental pancreatic solid mass
Contrast-enhanced Ultrasound
Dietrich CF et al. Improved characterisation of solitary solid
pancreatic tumours using contrast enhanced transabdominal
ultrasound. J Cancer Res Clin Oncol 2008
38. PANCREAS
IMAGING
Days before surgery US CT MR CEUS
Unpaired t test
P value 0.3664 0.2219 0.0783 0.0241
Mean ± SEM Concordance 6.818 ± 1.668, n=44 20.24 ± 3.258, n=29 17.75 ± 1.376, n=124 11.84 ± 1.557, n=117
Mean ± SEM Discordance 3.500 ± 1.985, n=10 11.00 ± 3.733, n=6 23.38 ± 3.267, n=32 2.188 ± 0.5494, n=16
Difference between means -3.318 ± 3.642 -9.241 ± 7.423 5.625 ± 3.174 -9.650 ± 4.229
95% CI -10.63 to 3.989 -24.34 to 5.860 -0.6444 to 11.89 -18.02 to -1.285
Days before surgery (Metastasis) US CT MR CEUS
Unpaired t test
P value 0.1945 0.8346 0.0166 0.1839
Mean ± SEM of Concordance 5.435 ± 1.435, n=46 18.93 ± 3.120, n=29 17.83 ± 1.328, n=139 13.91 ± 1.515, n=139
Mean ± SEM of Discordance 10.63 ± 4.751, n=8 17.33 ± 7.182, n=6 27.71 ± 4.277, n=17 5.889 ± 2.574, n=9
Difference between means 5.190 ± 3.949 -1.598 ± 7.590 9.879 ± 4.077 -8.018 ± 6.005
95% CI -2.733 to 13.11 -17.04 to 13.84 1.824 to 17.93 -19.89 to 3.851
The best concordance between preoperative MR and surgery was
obtained with imaging performed 17.83 days before surgery.
49. CT texture analysis of
downstaged ductal
adenocarcinoma
ECR 2017
Imaging Research corner
Images are more than pictures
PDAC STAGING: CT/MR
DOWNSIZED
GROUP
CT1 vs CT2
Mean Value Variance Skewness Kurtosis Entropia
Exact p-value 0.3778 0.4586 0.0087 <0.0001 0.6441
50. TEXTURE ANALYSIS
G1 vs G2 G2 vs G3 G1 vs G3
Mean Value p= 0,2123 p= 0,0842 p= 0,0113
Variance p= 0,8580 p= 0,1032 p= 0,1922
Skewness p= 0,4457 p= 0,3580 p= 0,2958
Kurtosis p= 0,0063 p< 0,0001 p< 0,0001
Entropia p= 0,2623 p= 0,0084 p= 0,0013
3D TEXTURE ANALYSIS OF
PANCREATIC
NEUROENDOCRINE
NEOPLASMS
ESGAR 2017
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