Diagnostic problems in two-dimensional shear wave elastography of the liver
| Autor: | Masahiro Ogawa, Hiroko Naganuma, Hideaki Ishida, Hiroshi Nagai, A. Uno, Hidekatsu Kuroda |
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| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Shear wave elastography Cirrhosis Liver tumor business.industry Chronic hepatic Ultrasound Minireviews medicine.disease Hepatic surface Computer simulation model 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Focal lesion Two-dimensional shear wave elastography Liver cirrhosis medicine In patient Radiology Artifacts business 030217 neurology & neurosurgery |
| Zdroj: | World Journal of Radiology |
| ISSN: | 1949-8470 |
| Popis: | Two-dimensional shear wave elastography (2D-SWE) is used in the clinical setting for observation of the liver. Unfortunately, a wide spectrum of artifactual images are frequently encountered in 2D-SWE, the precise mechanisms of which remain incompletely understood. This review was designed to present many of the artifactual images seen in 2D-SWE of the liver and to analyze them by computer simulation models that support clinical observations. Our computer simulations yielded the following suggestions: (1) When performing 2D-SWE in patients with chronic hepatic disease, especially liver cirrhosis, it is recommended to measure shear wave values through the least irregular hepatic surface; (2) The most useful 2D-SWE in patients with focal lesion will detect lesions that are poorly visible on B-mode ultrasound and will differentiate true tumors from pseudo-tumors (e.g., irregular fatty change); and (3) Measurement of shear wave values in the area posterior to a focal lesion must be avoided. |
| Databáze: | OpenAIRE |
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