Background: Artifacts are common when using two-dimensional shear wave elastography (2-D SWE) to measure liver stiffness (LS), but they are poorly recognized.
Aim: To investigate the presence and influence of artifacts in 2-D SWE of liver.
Methods: We included 158 patients with chronic liver disease, who underwent 2-D SWE examination by a novice and an expert. A cross line at the center of the elastogram was drawn and was divided it into four locations: top-left, top-right, bottom-left, and bottom-right. The occurrence frequency of artifacts in different locations was compared. The influence of artifacts on the LS measurements was evaluated by comparing the elastogram with the most artifacts (EMA) and the elastogram with the least artifacts (ELA).
Results: The percentage of elastograms with artifacts in the novice (51.7%) was significantly higher than that of the expert (19.6%) ( < 0.001). It was found that both operators had the highest frequency of artifacts at bottom-left, followed by top-left and bottom-right, and top-right had the lowest frequency. The LS values (LSVs) and standard deviation values of EMAs were significantly higher than those of ELAs for both operators. An intraclass correlation coefficient value of 0.96 was found in the LSVs of EMAs of the two operators, and it increased to 0.98 when the LSVs of the ELAs were used. Both operators had lower stability index values for EMAs than ELAs, but the difference was only statistically significant for the novice.
Conclusion: Artifacts are common when using 2-D SWE to measure LS, especially for the novice. Artifacts may lead to the overestimation of LS and reduce the repeatability and reliability of LS measurements.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10292141 | PMC |
| http://dx.doi.org/10.3748/wjg.v29.i21.3318 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Understanding confounding factors allows for accurate interpretation of liver stiffness measurements by ElastQ, a novel 2D shear wave elastography technique.
Ultraschall Med
August 2024
Internal Medicine III, Div. of Gastroenterology & Hepatology, Medical University of Vienna, Vienna, Austria.
Article Synopsis
- This study looked at two ways to measure how stiff the liver is, which helps doctors see if there is damage or disease in the liver.
- They compared the results of these two methods, VCTE and ElastQ, using data from 840 people.
- The findings showed that the differences in results got bigger as liver problems worsened, and some factors like BMI and distance between the skin and liver affected the measurements differently.
Protocol for acquisition of images and measurement of transabdominal ultrasound pancreatic two-dimensional shear wave elastography (2D-SWE).
Gastroenterol Hepatol
November 2024
Servicio de Aparato Digestivo, Hospital La Paz, Madrid, España.
Article Synopsis
- Transabdominal ultrasound pancreatic 2D-SWE elastography is an emerging technique that requires a standardized protocol for effective use.
- The study involved taking ten measurements of pancreatic elasticity in healthy volunteers, focusing on specific areas and adhering to a strict methodology.
- Results showed high reliability and internal consistency, with a recommendation to take at least five measurements in the most accessible area at a depth of less than 4.8cm for accurate assessment.
Three-Dimensional Shear Wave Elastography Using Acoustic Radiation Force and a 2-D Row-Column Addressing (RCA) Array.
IEEE Trans Ultrason Ferroelectr Freq Control
April 2024
Acoustic radiation force (ARF)-based shear wave elastography (SWE) is a clinically available ultrasound imaging mode that noninvasively and quantitatively measures tissue stiffness. Current implementations of ARF-SWE are largely limited to 2-D imaging, which does not provide a robust estimation of heterogeneous tissue mechanical properties. Existing 3-D ARF-SWE solutions that are clinically available are based on wobbler probes, which cannot provide true 3-D shear wave motion detection.
View Article and Find Full Text PDFThe value of multimodal ultrasonography in the evaluation of late presenting testicular torsion in a rat experimental model.
Br J Radiol
February 2024
Pamukkale University Hospital, Department of Paediatric Surgery, Denizli, 20160, Turkey.
Objective: To evaluate the value of multimodal ultrasonography (US) in a rat experimental torsion model after 6 h of torsion with different degrees.
Methods: Twenty-one male rats were divided into three groups. Left testes of the rats were twisted around their vascular pedicle 360 degrees in group 1, 720 degrees in group 2, and 1080 degrees in group 3 and intact right testes of the rats were accepted as control group.
Combined Assessment of 2-D Ultrasound and Real-Time Shear Wave Elastography of Low-Intensity Pulsed Ultrasound Therapy Efficacy in Rabbits with Achilles Tendinopathy.
Ultrasound Med Biol
March 2024
Department of Ultrasound, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address:
Objective: Low-intensity pulsed ultrasound (LIPUS) has been gradually used to treat Achilles tendinopathy. However, there are limited non-invasive and efficient instruments for monitoring LIPUS efficacy in Achilles tendinopathy. The purpose of this study was to assess the therapeutic effectiveness of LIPUS after Achilles tendinopathy by 2-D ultrasound and real-time shear wave elastography (SWE).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!