Abstract
Pancreatic adenocarcinoma is a highly lethal disease, mainly due to late diagnosis. Imaging is essential to correctly stage pancreatic adenocarcinoma and define resectable tumors. CT and MRI are more commonly used to detect, characterize, and stage pancreatic carcinoma based on morphological features and enhancement patterns. With the advent of new molecular targeted therapies, there is a growing interest in the imaging assessment of early response to therapy. Therefore, there is growing interest in exploring the capabilities of new functional imaging techniques in the assessment of pancreatic cancer. In this manner, 18FDG PET-CT has been mainly used for initial M-staging, treatment planning with radiation therapy, and the early evaluation of treatment response to chemotherapy and radiotherapy. Diffusion-weighted imaging has shown high sensitivity and specificity for pancreatic cancer detection. Moreover, diffusion-weighted imaging is also able to accurately differentiate pancreatic carcinoma from benign lesions and has been proposed for prediction of treatment response. Pancreatic carcinoma shows high permeability and reduced blood flow in DCE-MRI, CT perfusion, and CEUS. Vascular characteristics of pancreatic carcinoma studies by these imaging techniques may have a role in characterization of pancreatic lesion, therapy monitoring, and prediction of response to treatment. In addition, functional imaging techniques have also been used to differentiate nonneoplastic cystic lesions from neoplastic cysts and in the case of neuroendocrine tumors for detection, characterization, distant staging, recurrence depiction after treatment, and treatment selection for possible radionuclide-based treatment.
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Abbreviations
- ADC:
-
Apparent diffusion coefficient
- AUC60 :
-
Initial area under the concentration curve in 60
- CEUS:
-
Contrast-enhanced ultrasound
- C peak :
-
Peak tissue gadolinium concentration
- CT:
-
Computed tomography
- D:
-
Tissue diffusivity
- DCE-MRI:
-
Dynamic contrast-enhanced-MRI
- DOTANOC:
-
68Ga-DOTA-NaI-octreotide
- DWI:
-
Diffusion-weighted imaging
- ERCP:
-
Endoscopic retrograde cholangiopancreatography
- EUS:
-
Endoscopic ultrasound
- f :
-
Perfusion fraction
- 18FDG:
-
18-Fluorodeoxyglucose
- IPMNs:
-
Intraductal papillary mucinous neoplasms
- IVIM:
-
Intravoxel incoherent motion
- K trans :
-
Volume transfer coefficient
- Kep:
-
Rate constant
- MCNs:
-
Mucinous cystic neoplasms
- MRI:
-
Magnetic resonance imaging
- M-staging:
-
Metastatic staging
- NEC:
-
Neuroendocrine carcinoma
- NETs:
-
Neuroendocrine tumors
- N-staging:
-
Nodal staging
- OctreoScan:
-
111In-labelled octreotide
- PET:
-
Positron emission tomography
- RCC:
-
Renal cell carcinoma
- SMI:
-
Somatostatin receptor imaging
- SUVmax :
-
Maximum standardized uptake value
- THRIVE:
-
T1-weighted high-resolution isotropic volume excitation
- TIC:
-
Time-intensity curve
- T-staging:
-
Local staging
- US:
-
Ultrasound
- v e :
-
Volume of distribution
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Luna, A., Alcalá-Mata, L., Volpacchio, M., Barbero, J.P.M. (2014). Pancreatic Adenocarcinoma and Other Pancreatic Malignancies. In: Luna, A., Vilanova, J., Hygino Da Cruz Jr., L., Rossi, S. (eds) Functional Imaging in Oncology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40582-2_21
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