Abstract
Ultrasonographic elastography is a modality used to visualize the elastic properties of tissues. Technological advances in ultrasound equipment have supported the evaluation of elastography (EG) in endosonography (EUS). Currently, the usefulness of not only EUS-strain elastography (EUS-SE) but also EUS-shear wave elastography (EUS-SWE) has been reported. We reviewed the literature on the usefulness of EUS-EG for various diseases such as chronic pancreatitis, pancreatic solid lesion, autoimmune pancreatitis, lymph node, and gastrointestinal and subepithelial lesions. The importance of this new diagnostic parameter, “tissue elasticity” in clinical practice might be applied not only to the diagnosis of liver fibrosis but also to the elucidation of the pathogeneses of various gastrointestinal diseases, including pancreatic diseases, and to the evaluation of therapeutic effects. The most important feature of EUS-EG is that it is a non-invasive modality. This is an advantage not found in EUS-guided fine needle aspiration (EUS-FNA), which has made remarkable progress in the field of diagnostics in recent years. Further development of artificial intelligence (AI) is expected to improve the diagnostic performance of EUS-EG. Future research on EUS-EG is anticipated.
Highlights
In 2003, EUS–strain elastography (EUS-Strain elastography (SE)) was introduced. It is reportedly useful for clinical practice, for differentiating tumors, and for diagnosing chronic pancreatitis (CP)
Strain elastography (SE) was initially a qualitative examination based on color patterns, but quantitative tissue elasticity diagnosis (strain ratio (SR), histogram analysis (SH)) can be performed by image processing
This review presents a summary of recent pancreatitis (AIP), pancreatic (EUS-EG)
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. Ultrasonographic elastography, based on covering strain and shear waves, is a modality used to visualize the elastic properties of tissues [1]. Shear wave elastography (SWE), which has been available since 2019, can objectively measure tissue. Shear wave elastography (SWE), which has been available since 2019, can objectively measure tissue elasticity using absolute values, in EUS. Are emerging review of presents a summary elasticity using absolute values, in EUS. This review presents a summary of recent pancreatitis (AIP), pancreatic (EUS-EG). Solid lesions and gastrointestinal advances in EUS elastography for (PSL), variouslymphadenopathy, diseases: CP, autoimmune pancreatitis subepithelial lesions (AIP), pancreatic solid(GI-SEL).
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