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Effect of Respirophasic Displacement of the Inferior Vena Cava on Size Measurement in 2-D Ultrasound Imaging.
Ultrasound Med Biol
December 2024
Mathematical Biology and Physiology, Department of Electronics and Telecommunications, Politecnico di Torino, Turin, Italy. Electronic address:
Objective: Volume status assessment of a patient by ultrasound (US) imaging of the inferior vena cava (IVC) is important for the diagnosis and prognosis of various clinical conditions. In order to improve the clinical investigation of IVC, which is mainly based on unidirectional US (in M-mode), automated processing of 2-D US scans (in B-mode) has enabled tissue movement tracking on the visualized plane and can average this in various directions. However, IVC geometry outside of the visualized plane is not under control and could result in errors that have not yet been evaluated.
View Article and Find Full Text PDF[Validation study of a novel diaphragmatic excursion measurement method: evaluation of diaphragmatic excursion by phased-array probe in hepato-renal/spleno-renal section].
Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
July 2024
Department of Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China. Corresponding author: Duan Jun, Email:
Objective: To investigate the accuracy and reproducibility of diaphragmatic excursion (DE) measurements through hepato-renal/spleno-renal section as a novel method for assessing diaphragmatic function.
Methods: Twelve healthy participants were recruited. Each participant underwent DE measurements performed by four operators with varying levels of experience using traditional methods (liver/spleen section) and novel methods (hepato-renal/spleno-renal section), respectively.
Evolution of Natural Myocardial Shear Wave Behavior in Young Hearts: Determinant Factors and Reproducibility Analysis.
J Am Soc Echocardiogr
November 2024
Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; Department of Cardiovascular Diseases, University Hospitals Leuven, Leuven, Belgium. Electronic address:
Background: Myocardial diastolic function assessment in children by conventional echocardiography is challenging. High-frame rate echocardiography facilitates the assessment of myocardial stiffness, a key factor in diastolic function, by measuring the propagation velocities of myocardial shear waves (SWs). However, normal values of natural SWs in children are currently lacking.
View Article and Find Full Text PDFAssessing the oral and suprahyoid muscles in healthy adults using muscle ultrasound to inform the swallowing process: a proof-of-concept study.
Sci Rep
June 2024
Adult Critical Care Unit, The Royal London Hospital, Barts Health NHS Trust, London, E1 1BB, UK.
Article Synopsis
- The study investigated the use of bedside ultrasound to measure the mass and function of oral and suprahyoid muscles involved in swallowing among 40 healthy participants.
- Results showed low variability in muscle mass measurements, with significant differences in geniohyoid muscle size based on sex, and relationships between tongue size and factors like weight and height.
- The thickness of the geniohyoid muscle layer changed with larger bolus sizes, and while velocity increased with bolus size, swallow time and slope distance remained constant, suggesting ultrasound could offer valuable insights into swallowing muscle dynamics.
Inferior vena cava distensibility during pressure support ventilation: a prospective study evaluating interchangeability of subcostal and trans‑hepatic views, with both M‑mode and automatic border tracing.
J Clin Monit Comput
October 2024
Department of Anaesthesia and Intensive Care, A.O.U. Policlinico-San Marco, Via S. Sofia N 78, 95123, Catania, Italy.
The Inferior Vena Cava (IVC) is commonly utilized to evaluate fluid status in the Intensive Care Unit (ICU),with more recent emphasis on the study of venous congestion. It is predominantly measured via subcostal approach (SC) or trans-hepatic (TH) views, and automated border tracking (ABT) software has been introduced to facilitate its assessment. Prospective observational study on patients ventilated in pressure support ventilation (PSV) with 2 × 2 factorial design.
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