Using shear wave elasticity in normal terminal ileum of a healthy southwest Chinese population: a pilot study of reference elasticity ranges
| Autor: | Jie-Ying Zhao, Yu-Ting Wu, Ji-Gang Jing, Hua Zhuang, Yuan Luo, Xin Gao, Yan Zhang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.diagnostic_test
Correlation coefficient business.industry 030218 nuclear medicine & medical imaging Shear (sheet metal) 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure Consistency (statistics) medicine Terminal ileum Original Article 030211 gastroenterology & hepatology Radiology Nuclear Medicine and imaging Elastography Analysis of variance Elasticity (economics) Nuclear medicine business Body mass index Mathematics |
| Zdroj: | Quant Imaging Med Surg |
| ISSN: | 2223-4306 2223-4292 |
| DOI: | 10.21037/qims-20-877 |
| Popis: | Background Elastography has not been widely applied to the gastrointestinal tract. The bowel wall's normal elasticity values are still unknown and are necessary for studies of gastrointestinal diseases. This study explores the feasibility of using shear wave elastography (SWE) to measure the terminal ileum wall stiffness in healthy subjects and establish the corresponding normal ranges of elasticity values. Methods This observational study recruited 139 healthy adult volunteers from April to July 2020. All examinations were performed in the anterior terminal ileum wall. Shear wave velocity (SWV) and Young's modulus (E) values were measured in the midline on longitudinal sections and replicated different operators' obtained data. Also, bowel wall thickness (BWT) and depth were recorded. Subgroups were classified according to the volunteers' gender, age, body mass index (BMI), BWT, and depth. The intra-class correlation coefficient was calculated to analyze inter- and intra-operator consistency, and independent t-tests and one-way analysis of variance were used to explore the differences in variables. Results The inter- and intra-operator agreements were good to excellent by different operators and in the replicated measurements (intra-operator consistency: 0.963; inter-operator consistency: 0.842). In all volunteers, the mean SWV was 1.08±0.25 m/s, the mean E value was 3.84±1.84 kPa, and the median BWT was 2 mm. SWV and E did not show significant differences according to gender (P=0.589), age (P=0.738), BMI (P=0.678), depth (P=0.375), or BWT (P=0.410). BWT did not show significant differences according to age (P=0.142), BMI (P=0.863), or depth (P=0.368). Conclusions SWE can be used in terminal ileum wall stiffness measurements with good reliability, and the SWE values do not appear to vary significantly according to different physiological factors. The corresponding elasticity ranges of the terminal ileum in normal adults were acquired. |
| Databáze: | OpenAIRE |
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