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It’s important to use consistent terminology to describe the basic manipulations of the #ultrasound transducer. Particularly helps when guiding learners to acquire optimal images (echo labs may use a slightly different terminology). #POCUS #FOAMed #Nephpearls Slide - Motion in the long axis of the probe across the body with... show more
44,901 views • 2 years ago •via X (Twitter)
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I get the interest of folks in using sweep vs slide but sliding occurs in more than two planes the two terms can actually be a little confusing to learners as opposed to just just giving clear instructions about where and how to slide IMO.
Agree, but I consistently make an effort to reinforce these terms with both myself and learners. This practice is beneficial when remotely reviewing images and providing feedback (though it could be argued that instructors proficient in face-to-face communication can effectively convey information virtually without using these terms). Not surprisingly, significant variability is seen in real-world scenarios.
I think watching screen and aligned orientation marker will help the learner to understand movement and image relation. Let us ask them to show that without looking at patient, once probe touches patient .
![This paper is describing something which sounds remarkably similar to an ECDO state 2 to state 1 rotation a half a billion years ago. Excerpts from Evidence for a Large-Scale Reorganization of Early Cambrian Continental Masses by Inertial Interchange True Polar Wander, Kirschvink et al. (1997): "..at least two tectonic plates, involving more than two-thirds of Earth's continental lithosphere, were involved in a rapid rotation of ~90° relative to the spin axis. We speculate that the entire lithosphere may have been involved in this rotation. // The new ages, along with paleomagnetic data, indicate that continents moved at rapid rates that are difficult to reconcile with our present understanding of mantle dynamics. // The pole for this sequence is >80° away from the Vendian-Early Cambrian poles, implying that Australia underwent a large rotation while remaining near the equator sometime between Tommotian and Late Cambrian time. // Australia rotated counterclockwise during this time. // Antarctica, India, Africa, South America, and perhaps parts of East Asia also rotated with Australia. // True polar wander (TPW) is the process through which quasi-rigid spheroids align their maximum moments of inertia with the spin axis, pushing positive mass anomalies toward the rotational equator. // A variant of this mechanism, inertial interchange true polar wander (IITPW), involves discrete bursts of TPW of up to 90° in geologically short intervals of time if the magnitudes of the intermediate and maximum moments of inertia cross. This would result in a rapid movement away from the spin axis by the geographic location of the former pole with rotation of the entire solid Earth centered about the minimum moment of inertia located on the equator. // These two poles, with their stated polarity interpretation, are separated by about 68°; together they yield a plausible tropical position for Siberia, nearly on the opposite side of the globe from Australia. // If the velocities are due to TPW, however, such geodynamical considerations are obviated because the entire mantle would have rotated along with the lithosphere." [1] [2] (by Ethical Skeptic ☀)](https://image.24vids.com/tw-1817571533050581496/ext_tw_video_thumb/1817565690330595328/pu/img/cH9bGSzvxCylXsue.jpg)
