Intra-rater reliability and smallest detectable change of compression sonoelastography in quantifying the material properties of the musculoskeletal system

Reliability of Sonoelastography Measurements of Lower Limb Tendon Properties: A Systematic Review

This study investigated the reliability of sonoelastography techniques in quantifying lower limb tendon elasticity. A literature search was conducted using PubMed, Web of Science and CINAHL. The quality of the selected papers was evaluated using the Guidelines for Reporting Reliability and Agreement Studies and the Quality Appraisal Tool for Studies of Diagnostic Reliability checklist. Reliability values were extracted and synthesized. Twenty-four studies were included and were divided by the two main technologies used: strain and shear-wave elastography. The overall methodological quality was questionable; all studies were at risk of bias. Highly variable results ranging from poor to excellent reliability were found for both technologies and for all tendons considered. Intra-rater reliability of strain elastography on the Achilles tendon and shear-wave elastography on the patellar and quadriceps tendon was adequate. Inter-rater, inter-session and inter-machine reliability was insufficient. Caution should be used when interpreting results from sonoelastography studies measuring lower limb tendon elasticity.

Explanatory Styles of Counsellors in Training

Explanatory style is based on how one explains good and bad events according to three dimensions: personalization, permanence, and pervasiveness. With an optimistic explanatory style, good events are explained as personal, permanent, and pervasive, whereas bad events are explained as external, temporary, and specific. For counsellors, an optimistic explanatory style creates positive expectancy judgments about the possibilities and opportunities for successful client outcomes. In this research study, we explored the explanatory styles expressed in 400 events (200 good events and 200 bad events) extracted from 38,013 writing samples of first year and final year graduate level counsellors in training. Across the three optimism dimensions and within good and bad events, there was one occurrence of a positive relationship between counsellor training time and the amount of expressed optimism. The implications of this study include the need to cultivate optimistic explanatory styles of counsellors in training and practicing counsellors.