ArticleJournal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine2020
An Automated ALARA Method for Ultrasound: An Obstetric Ultrasound Feasibility Study.
Article in Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 17 citations in OpenAlex.
- Cost-effectiveness analysis of AI-based image quality control for perinatal ultrasound screening.BMC medical education · 2024Trial
- Ophthalmic Artery Doppler Indices at 11-13 Weeks of Gestation in Relation to Early and Late Preeclampsia.Journal of clinical medicine · 2025Article
- Safety of Obstetric Ultrasound: Mechanical and Thermal Indexes-A Systematic Review.Journal of clinical medicine · 2024Review
- In Vivo Demonstration of a Real-Time Temporal SNR Acoustic Output Adjustment Method.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2024Article
- Human Observer Sensitivity to Temporal Noise During B-Mode Ultrasound Scanning: Characterization and Imaging Implications.Ultrasonic imaging · 2024Article
- An Automated Region-Selection Method for Adaptive ALARA Ultrasound Imaging.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2022Article
- Spatial Coherence in Medical Ultrasound: A Review.Ultrasound in medicine & biology · 2022Review
- Spatiotemporal Coherence to Quantify Sources of Image Degradation in Ultrasonic Imaging.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2022Article
- Occult Regions of Suppressed Coherence in Liver B-Mode Images.Ultrasound in medicine & biology · 2022Article
- The Role of Contrast-to-noise Ratio in Assessing the Quality of Obstetric Ultrasound: Subjective Approach and the Influence of Maternal and Obstetric Factors.Journal of medical ultrasoundArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
objectivesUltrasound users are advised to observe the ALARA (as low as reasonably achievable) principle, but studies have shown that most do not monitor acoustic output metrics. We developed an adaptive ultrasound method that could suggest acoustic output levels based on real-time image quality feedback using lag-one coherence (LOC).
methodsLag-one coherence as a function of the mechanical index (MI) was assessed in 35 healthy volunteers in their second trimester of pregnancy. While imaging the placenta or the fetal abdomen, the system swept through 16 MI values ranging from 0.15 to 1.20. The LOC-versus-MI data were fit with a sigmoid curve, and the ALARA MI was selected as the point at which the fit reached 98% of its maximum.
resultsIn this study, the ALARA MI values were between 0.35 and 1.03, depending on the acoustic window. Compared to a default MI of 0.8, the pilot acquisitions suggested a lower ALARA MI 80% of the time. The contrast, contrast-to-noise ratio, generalized contrast-to-noise ratio, and LOC all followed sigmoidal trends with an increasing MI. The R
conclusionsThese results suggest that maximum image quality can be achieved with acoustic output levels lower than the US Food and Drug Administration limits in many cases, and an automated tool could be used in real time to find the ALARA MI for specific imaging conditions. Our results support the feasibility of an automated, LOC-based implementation of the ALARA principle for obstetric ultrasound.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.