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The Speed of Sound

2019· article· en· W4386565190 on OpenAlexaboutno aff
Christine Butts

Bibliographic record

VenueEmergency Medicine News · 2019
Typearticle
Languageen
FieldPhysics and Astronomy
TopicExperimental and Theoretical Physics Studies
Canadian institutionsnot available
Fundersnot available
KeywordsSound (geography)AcousticsComputer sciencePhysics

Abstract

fetched live from OpenAlex

ultrasound: ultrasoundFigureWhen I saw the hubbub online regarding the recent statement on POCUS published by the Canadian Association of Radiologists, I thought the publication date must have been a typo: It was listed as August 2019 when surely it must have been August 1999. (Can Assoc Radiol J. 2019;70[3]:219; http://bit.ly/2NiS6Dd.) This paper makes multiple statements that are lacking appropriate references or lacking references altogether. The association stated that “inappropriate use of ultrasound by undertrained physicians has resulted in increased patient harm” with no citation at all. The radiologists also didn't mention hundreds of studies that have demonstrated the benefits of POCUS and the abilities of non-radiologists to use it. The underlying problem of this statement, however, is that an ultrasound is an ultrasound to the association. In other words, POCUS should be viewed as any other ultrasound and subjected to the same standards as radiology-performed scans. This is wishfully simplistic. POCUS cannot be viewed this way, and one only has to look at its history to see why. The earliest application of POCUS was the FAST exam. As anyone old enough to remember the 1990s knows, assessing trauma patients at that time was limited. Diagnostic peritoneal lavage was the best option for a rapid(ish) assessment of intra-abdominal hemorrhage, but there was no quick and easy way to assess for pericardial effusion. No offense to Beck, but everyone's heart tones are muffled in a loud resuscitation room. Thanks to some trauma surgeons and EPs, the FAST was born. As any physician who evaluates patients in real time can appreciate, obtaining the perfect image is irrelevant when someone is crashing in front of you. Figuring out whether he is hemorrhaging is relevant, and is what led to the development of the FAST and what sets it apart from standard imaging. To this day, if I try to order a FAST exam by radiology, it doesn't exist. EPs then started to realize the potential of POCUS to answer other questions at the bedside. The E-FAST was a direct answer to the (many) limitations of the supine chest x-ray. The RUSH protocol combined echo and body imaging to evaluate patients in shock. A lines and B lines exist thanks to POCUS, not to a radiologist. Do we need radiologist-performed ultrasound? Of course, we do. Radiologists are experts in their field, and are invaluable in diagnosis and treatment. But the horse has left the barn when it comes to POCUS. Just like other skills that used to “belong” to other specialties (e.g., intubation), we've demonstrated that we can use it to save lives. Ultrasound at the bedside has become an invaluable tool, and we won't go back. Share this article on Twitter and Facebook. Access the links in EMN by reading this on our website: www.EM-News.com. Comments? Write to us at [email protected]. Dr. Buttsis the director of the division of emergency ultrasound and a clinical assistant professor of emergency medicine at Louisiana State University at New Orleans. Follow her on Twitter@EMNSpeedofSound, and read her past columns athttp://bit.ly/EMN-SpeedofSound.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.780
Threshold uncertainty score0.995

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0060.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.015
GPT teacher head0.297
Teacher spread0.282 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2019
Admission routes1
Has abstractyes

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