Variability measurements provide additional value to shear wave elastography in the diagnosis of pancreatic cancer

Masakatsu Yoshikawa, Takuya Ishikawa, Eizaburo Ohno, Tadashi Iida, Kazuhiro Furukawa, Masanao Nakamura, Takashi Honda, Masatoshi Ishigami, Fumie Kinoshita, Hiroki Kawashima, Mitsuhiro Fujishiro

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9 Citations (Scopus)

Abstract

Shear wave elastography (SWE) is a technique to non-invasively and quantitatively evaluate tissue stiffness. We aimed to investigate whether we can differentiate pancreatic cancer (PC) from normal pancreatic parenchyma (NPP) by SWE using transabdominal ultrasound. We investigated a total of 106 patients (84 with NPP and 22 with PC) whose pancreatic elastic modulus was measured by two-dimensional SWE (2D-SWE). Intra-rater reliability in this study was examined, and three measurements were sufficiently reliable. There were no differences between the two groups in factors that could affect SWE measurements. The median value of the elastic modulus was 5.70 kPa in the PC patients and 5.66 kPa in the NPP group, which was not significantly different (P = 0.785). On the contrary, the range was 8.64 kPa and 4.72 kPa, with a significantly greater range in the PC patients (P = 0.001). In conclusion, the median elastic modulus measured by 2D-SWE was not significantly different between PC and NPP, and evaluating the obtained elastic modulus itself is not useful in differentiation. However, the variability was significantly greater in PC than in NPP. Evaluating the range of elasticities will provide additional information in SWE, which may be useful in the diagnosis of PC.

Original languageEnglish
Article number7409
JournalScientific reports
Volume11
Issue number1
DOIs
Publication statusPublished - 12-2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General

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