Acoustic radiation force impulse shear wave elastography (ARFI) of acute and chronic pancreatitis and pancreatic tumor
European Journal of Radiology, ISSN: 0720-048X, Vol: 85, Issue: 12, Page: 2211-2216
2016
- 58Citations
- 37Captures
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Metrics Details
- Citations58
- Citation Indexes57
- 57
- CrossRef45
- Patent Family Citations1
- Patent Families1
- Captures37
- Readers37
- 37
Article Description
Acoustic Radiation Force Impulse (ARFI) elastography evaluates tissue stiffness non-invasively and has rarely been applied to pancreas examinations so far. In a prospective and retrospective analysis, ARFI shear wave velocities of healthy parenchyma, pancreatic lipomatosis, acute and chronic pancreatitis, adenocarcinoma and neuroendocrine tumor (NET) of the pancreas were evaluated and compared. In 95 patients ARFI elastography of the pancreatic head, and also of the tail for a specific group, was analysed retrospectively. Additionally, prospectively in 100 patients ARFI was performed in the head and tail of the pancreas. A total of 195 patients were included in the study. Healthy parenchyma (n = 21) and lipomatosis (n = 30) showed similar shear wave velocities of about 1.3 m/s. Acute pancreatitis (n = 35), chronic pancreatitis (n = 53) and adenocarcinoma (n = 52) showed consecutively increasing ARFI values, respectively. NET (n = 4) revealed the highest shear wave velocities amounting to 3.62 m/s. ARFI elastography showed relevant differences between acute pancreatitis and chronic pancreatitis or adenocarcinoma. With a cut-off value of 1.74 m/s for the diagnosis of a malignant disease the sensitivity was 91.1% whereas the specificity amounted to 60.4%. ARFI shear wave velocities present differences in various pathologies of the pancreas. Acute and chronic pancreatitis as well as neoplastic lesions show high ARFI values. Very high elasticity values may indicate malignant disease of the pancreas. However, there is a considerable overlap between the entities.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0720048X16303242; http://dx.doi.org/10.1016/j.ejrad.2016.10.019; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84992391267&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/27842669; https://linkinghub.elsevier.com/retrieve/pii/S0720048X16303242
Elsevier BV
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