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Point shear wave elastography of the liver in healthy adult cats

Saechol Park DVM, MS1, Jeongwoo Choi DVM1, Kyeonga Kim DVM1, Donghyun Oh DVM1, Junghee Yoon DVM, PhD1, and Mincheol Choi DVM, PhD1
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  • 1 College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea.

Abstract

OBJECTIVE

To evaluate stiffness of the liver parenchyma in healthy adult cats by means of point shear wave elastography (PSWE).

ANIMALS

18 client-owned adult (1- to 6-year-old) healthy cats.

PROCEDURES

Echogenicity and echotexture of the liver parenchyma were assessed by means of conventional B-mode ultrasonography. The shear wave velocity (Vs) of the right and left portions of the liver were measured by means of PSWE.

RESULTS

B-mode ultrasonography revealed no abnormalities in echotexture or echogenicity of the liver parenchyma in any cat. Mean (95% CI) Vs in the liver parenchyma was 1.46 m/s (1.36 to 1.55 m/s) for the right portion, 1.36 m/s (1.26 to 1.47 m/s) for the left portion, and 1.43 m/s (1.35 to 1.51 m/s) overall. The difference in mean Vs between the 2 portions of the liver was significant. No significant correlation was found between Vs and body weight or between Vs and the depth at which this variable was measured.

CONCLUSIONS AND CLINICAL RELEVANCE

Quantitative PSWE of the liver was feasible in healthy adult cats. The obtained values for Vs may be useful for interpretation of and comparison with values measured in cats with liver disease. Additional research is needed to explore the potential usefulness of PSWE for diagnostic purposes.

Contributor Notes

Address correspondence to Dr. Mincheol Choi (mcchoi@snu.ac.kr).