ABSTRACT
The purpose of this study was to evaluate the effectiveness of ultrasound techniques in the analysis of respiratory-related muscles in rats. Respiratory parameters, including diaphragm end-expiratory thickness, mean rectus abdominis (RA) thickness, and RA area, were measured by ultrasound and compared with histological findings. Spearman's correlation and Logistic regression analysis were used to detect the differences in the correlation between ultrasound results and histological examinations, and Student's t test was used to compare the differences between ultrasound results and histological examination data. The results showed that there was no significant difference between the end-expiratory thickness of the diaphragm, the average thickness of RA, and the area of RA in the right RA and histological values under ultrasound detection (p > 0.05), but there was a significant positive correlation between ultrasound, and histological values (p < 0.05).); in addition, tidal volume was significantly positively correlated with total RA area, rapid shallow breathing index (RSBI) was significantly negatively correlated with total RA area, and mean diaphragm TF was significantly positively correlated with tidal volume. In conclusion, ultrasound imaging has a high degree of accuracy and reproducibility and can be used to assess the structure and function of the rat diaphragm and RA.
ABSTRACT
As an important means of physical examination, palpation is usually limited to the physical examination before surgery and used as an auxiliary method for disease diagnosis in the field of surgery. In practice, palpation is also used in every aspect of the surgical procedure, and its application is of great significance to surgery. The purpose of this study was to investigate the ability of ultrasound imaging to assess the ability of rotating physicians to locate musculoskeletal structures by palpation. Rotating physicians were asked to palpate and locate the long head tendon of the biceps (LHB), posterior tibialis (TPT), acromioclavicular joint (ACJ), and medial tibiofemoral joint (TFJ) spaces on two volunteer models. After positioning, a truncated steel needle was attached to the skin and parallel to the palpable structure, and the position of the steel needle relative to the designated structure was assessed by ultrasound imaging, using the Cohen kappa test to study the inter-rater agreement. The results showed that the assessor's Kappa coefficient for judging the location of all structures was 0.816, LHB was 1.00, TPT was 0.912, ACJ gap was 0.796, and TFJ medial space was 0.844, and the success rate of palpation for TPT was 62.2%, TFJ medial space was 37.8%, ACJ clearance was 24.3%, and LHB was 8.1%. In conclusion, the teaching methods of anatomy and palpation skills need further improvement, and ultrasound imaging is an effective tool for assessing palpation skills.
