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Open research questions in Ultrasound in Clinical Applications

391 gap statements mined from Ultrasound in Clinical Applications papers in our 7.9M-paper local library, which holds 1,783 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • The paper mentions the challenge of limited image quality from external ultrasound in cases of deep punctures or in overweight patients. The paper does not explicitly state other challenges.

    Analysis and Tracking of Intra-Needle Ultrasound Pleural Signals for Improved Anesthetic Procedures in the Thoracic Region · 2025 · DOI

  • Ultrasound assessment of fetal head station is more accurate than digital examination, but its use is limited by the lack of equipment dedicated to the labor ward.

    Point-of-care ultrasound for assessing fetal head descent during labor · 2026 · DOI

  • The role of early imaging in management remains unclear because most modalities require infrastructure that prevents field application.

    Can Emergency Physicians Identify Frozen Tissue on Ultrasound? Implications for Frostbite Management · 2026 · DOI

  • Future research should explore the sonographic features of frozen tissue in cases of frostbite and the test characteristics for sonographers with varying skill levels.

    Can Emergency Physicians Identify Frozen Tissue on Ultrasound? Implications for Frostbite Management · 2026 · DOI

  • The study underscores significant disparities in POCUS training and a lack of standardized governance across Australasian services, which are major impediments to its adoption.

    Soundwaves of innovation: a qualitative exploration of POCUS in Australasian ambulance and retrieval services · 2025 · DOI

  • Whereas educational programmes exist, the length of training needed to reach proficiency in correctly classifying inflammation remains unclear.

    Classifying Inflammation on Intestinal Ultrasound Images and Cineloops－A Learning Curve Study · 2024 · DOI

  • Further studies with larger sample sizes are warranted to validate these findings and explore the potential benefits of prehospital US in dynamic environments.

    Rapid Ultrasonography for Shock and Hypotension Protocol Performed using Handheld Ultrasound Devices by Paramedics in a Moving Ambulance: Evaluation of Image Accuracy and Time in Motion · 2024 · DOI

  • The diagnostic accuracy of POCUS in diagnosing tendon and ligament injuries remains unclear. There is a need for a summary of POCUS's diagnostic accuracy in diagnosing ankle and wrist tendon and ligament injuries.

    Point-of-care ultrasound for diagnosing tendon and ligament injuries of the wrist and ankle in emergency medicine · 2026 · DOI

  • The use of point-of-care ultrasound in prehospital care is challenging due to the lack of standardized protocols and training. The interpretation of ultrasound images in prehospital emergencies can be difficult due to the limited visibility and movement of the patient. The integration of point-of-care ultrasound into prehospital care requires significant changes to existing emergency medical services systems.

    Feasibility and diagnostic accuracy of paramedic-performed prehospital point-of-care ultrasound: a retrospective observational study · 2026 · DOI

  • Conventional teaching methods may not adequately equip medical students with diagnostic imaging skills. There is a need for novel teaching techniques to improve pneumothorax detection skills.

    Randomized comparison of gamified mobile app–based training versus conventional learning for pneumothorax detection in chest radiographs · 2026 · DOI

  • The gap in current research is the lack of timely and precise identification of non-cardiac etiologies of chest pain, including pneumothorax, in pediatric emergency departments. The gap is addressed by evaluating the use of point-of-care lung ultrasound in a pediatric emergency department.

    Point-of-care lung ultrasound in the evaluation of chest pain in a pediatric emergency department · 2026 · DOI

  • The lack of structured competency-based training in US-guided diagnostics and needle navigation within the Indian medical education system. The limited integration of POCUS and US-guided procedural skills into medical training programs in India.

    A multimodal blended learning curriculum for ultrasound-guided diagnostics and needle navigation: development and early implementation in an Indian tertiary care setting · 2026 · DOI

  • Comprehensive transthoracic echocardiography is not cost-effective for all patients. There is a need for a selective approach to guide secondary prevention. The current approach has limited impact on management in unselected cohorts.

    Efficiency of Neurologist-Led Focused Cardiac Ultrasound in the Acute Stroke Pathway (S-FoCUS) · 2026 · DOI

  • Further studies are needed to validate the effectiveness of AI-POCUS in real-world clinical scenarios. Research is needed to address the challenges of operator dependency and inconsistent outcomes. The development of more advanced AI-driven platforms for point of care ultrasound is necessary.

    Role of artificial intelligence and point of care ultrasound in management of critically ill patients · 2026 · DOI

  • Respiratory sarcopenia lacks sensitive tools for early screening. Current screening paradigms have limitations, such as being indirect or effort-dependent.

    Identifying key diaphragm ultrasound predictors for early screening of respiratory sarcopenia · 2026 · DOI

  • There is a need for a sensitive and accurate method for evaluating pulmonary congestion in patients with heart failure. The current methods for diagnosing pulmonary congestion have limitations.

    The Meaning of Thoracic Sonography in Diagnosis of Pulmonary Congestion due to Heart Failure · 2026 · DOI

  • Cumulative radiation exposure from repeated chest computed tomography is a significant challenge. The lack of standardization in lung ultrasound protocols is a challenge. The variability in disease severity and pulmonary involvement among patients with cystic fibrosis is a challenge.

    Correlation Between CT-Derived Bhalla Score and Lung Ultrasound Score in Adult Patients with Cystic Fibrosis · 2026 · DOI

  • AI in healthcare is not limited to a single purpose but operates across a spectrum of applications that include clinical decision support, data integration, workflow optimization, and administrative efficiency.

    Integrating Artificial Intelligence and Point-of-Care Ultrasound Within the Clinical-Scientific Method: A Framework for Safer, Smarter Medicine · 2026 · DOI

  • The iteration of the inferential loop is proposed to terminate at a satisfactory probability of correct diagnosis guided by 'clinical sense' supported by Bayesian hypothesis, but the paper does not specify quantitative probability thresholds (e.g., >90% posterior probability) at which the diagnostic loop should stop in specific respiratory conditions.

    Paradigm shift in medicine and in clinical reasoning method: time has come for a new chest semiotics · 2026 · DOI

  • While the paper argues that ultrasound should be positioned as an 'epistemic mediator' rather than delegated to specialists, it does not establish specific training requirements, competency assessment benchmarks, or clinical time requirements for generalist physicians to perform reliable bedside chest ultrasound during initial patient contact.

    Paradigm shift in medicine and in clinical reasoning method: time has come for a new chest semiotics · 2026 · DOI

  • Suprasystemic pulmonary vascular resistance in the prenatal period may remain elevated.

    Point-of-care ultrasound-guided hemodynamic assessment and resuscitation in neonatal shock: a prospective observational study · 2026 · DOI

  • Validation of the hypothesis in further studies - Investigation of the technique in other interventions - Further development of the INUS…

    Analysis and Tracking of Intra-Needle Ultrasound Pleural Signals for Improved Anesthetic Procedures in the Thoracic Region · 2025 · DOI

  • Despite similar findings within each group, families receiving POCUS reported greater perceived importance of imaging and strong support for its use, highlighting its potential to enhance patient-centered care and support further research into its optimal implementation in pediatric emergency care.

    Impact of Point‐of‐Care Ultrasound on Patient‐Family Experience and Behavioral Response in a Pediatric Emergency Department: A Randomized Control Survey Trial · 2026 · DOI

  • Several directions for future research emerge from these findings.

    Medical Students’ Perceptions of Point-of-Care Ultrasound Education: A Qualitative Interview Study · 2026 · DOI

  • The need for practical and lower-burden tools for repeated imaging assessment in the population with CTD-ILD - The unclear contribution of the components of the modified LUS score…

    Computational interpretation of modified lung ultrasound performance in CTD-ILD · 2026 · DOI

Most-cited papers in Ultrasound in Clinical Applications

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Open questions raised by papers listed on this page include: (1) Ultrasound assessment of fetal head station is more accurate than digital examination, but its use is limited by the lack of equipment dedicated to the labor ward (“Point-of-care ultrasound for assessing fetal head descent during labor”, 2026); (2) The role of early imaging in management remains unclear because most modalities require infrastructure that prevents field application (“Can Emergency Physicians Identify Frozen Tissue on Ultrasound? Implications for…”, 2026); (3) The diagnostic accuracy of POCUS in diagnosing tendon and ligament injuries remains unclear (“Point-of-care ultrasound for diagnosing tendon and ligament injuries of the…”, 2026); (4) The use of point-of-care ultrasound in prehospital care is challenging due to the lack of standardized protocols and training (“Feasibility and diagnostic accuracy of paramedic-performed prehospital…”, 2026); (5) There is a need for novel teaching techniques to improve pneumothorax detection skills (“Randomized comparison of gamified mobile app–based training versus conventional…”, 2026). 391 gap statements have been mined from Ultrasound in Clinical Applications papers in our 7.9M-paper local library, which holds 1,783 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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