AI Article Synopsis
- The research focuses on how the orientation of shear wave elastography (SWE) probes affects the measurement of shear wave speed (c) in anisotropic biological tissues like muscle, specifically in gelatinous inclusions within muscles.
- The study reveals that probe orientation relative to muscle fibers significantly impacts SWE signal quality and shear wave speed measurements, with notable statistical differences found (p < 0.01).
- To minimize measurement errors and artifacts, the study suggests positioning the probe perpendicular to the muscle fibers when assessing intra-muscular lesions.
Article Abstract
In highly anisotropic biological tissues such as muscle or tendons, calculating Young's modulus from the shear wave speed (c) by using shear wave elastography (SWE) involves a complex transversally isotropic rheological model not yet used in common practice. To our knowledge, the effect of muscle anisotropy on c of intra-muscular lesions has not yet been investigated. The objective of our study was to define the effect of an anisotropic medium on c of intra-muscular gelatinous inclusions. We conducted a prospective monocentric, in vitro study in order to examine the quantitative and qualitative SWE behavior of a 9-mm gelatinous intra-muscular implant depending on the orientation of the probe relative to the muscle fibers. There were very significant differences in the prevalence of SWE signal void (p < 0.01) and in the c (p < 0.01) in the gelatinous intra-muscular implants depending on the orientation of the probe relative to the fibers. Performing the c measurements of centimetric intra-muscular lesions by orienting the probe perpendicular to the fibers decreases the probability of artifacts occurring at high intensity interfaces.
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| http://dx.doi.org/10.1016/j.ultrasmedbio.2016.09.006 | DOI Listing |
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