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Exploring the feasibility of millimeter-wave sensors for non-invasive respiratory motion visualization in diagnostic imaging and therapy.
Med Phys
January 2025
Department of Medical Physics, Graduate School of Medical Sciences, Kindai University, Osakasayama, Osaka, Japan.
Background: Management of respiratory motion during radiation therapy is essential for accurate dose delivery and minimizing the risk to organs. In diagnostic imaging, respiratory monitoring is required for confirmation of breath-hold and four-dimensional computed tomography (CT) reconstruction. Although respiratory monitoring systems are widely used in radiation therapy, they are not often used for diagnostic imaging, where they could improve image quality.
View Article and Find Full Text PDFAssessment of scattered and leakage radiation from ultra-portable X-ray systems in chest imaging: An independent study.
PLOS Glob Public Health
January 2025
Médecins Sans Frontières, International, Geneva, Switzerland.
Ultraportable (UP) X-ray devices are ideal to use in community-based settings, particularly for chest X-ray (CXR) screening of tuberculosis (TB). Unfortunately, there is insufficient guidance on the radiation safety of these devices. This study aims to determine the radiation dose by UP X-ray devices to both the public and radiographers compared to international dose limits.
View Article and Find Full Text PDFIdiopathic intracranial hypertension: Imaging and clinical fundamentals.
World J Radiol
December 2024
Research Unit of Radiology and Medical Imaging, School of Medicine, National and Kapodistrian University of Athens, Athens 11528, Greece.
Neuroimaging is a paramount element for the diagnosis of idiopathic intracranial hypertension, a condition characterized by signs and symptoms of raised intracranial pressure without the identification of a mass or hydrocephalus being recognized. The primary purpose of this review is to deliver an overview of the spectrum and the specific role of the various imaging findings associated with the condition while providing imaging examples and educational concepts. Clinical perspectives and insights into the disease, including treatment options, will also be discussed.
View Article and Find Full Text PDFPerformance of the High-STEACS Early Rule Out Pathway Using hs-cTnT at 30 Days in a Multisite US Cohort.
Circ Cardiovasc Qual Outcomes
January 2025
Department of Emergency Medicine, Wake Forest University School of Medicine, Winston-Salem, NC. (N.P.A., A.C.S., M.W.S., M.J.M., T.H., S.A.M.).
Background: The High-STEACS (High-Sensitivity Troponin in the Evaluation of Patients With Acute Coronary Syndrome) pathway risk stratifies emergency department patients with possible acute coronary syndrome. This study aims to determine if the High-STEACS hs-cTnT (high-sensitivity cardiac troponin T) pathway can achieve the ≥99% negative predictive value (NPV) safety threshold for 30-day cardiac death or myocardial infarction (CDMI) in a multisite US cohort of patients with and without known coronary artery disease (CAD).
Methods: A secondary analysis of the STOP-CP (High-Sensitivity Cardiac Troponin T [Gen 5 STAT Assay] to Optimize Chest Pain Risk Stratification) cohort, which enrolled adult emergency department patients with possible acute coronary syndrome at 8 US sites (January 25, 2017-September 6, 2018).
The HET (history, electrocardiogram, and troponin) score has low efficacy and negative predictive value in a multisite U.S. cohort study.
Am J Emerg Med
December 2024
Department of Emergency Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA; Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, NC, USA; Department of Implementation Science, Wake Forest School of Medicine, Winston-Salem, NC, USA.
Introduction: The History, Electrocardiogram, and Troponin (HET) score is a simplified alternative to the HEART score for risk stratifying emergency department (ED) patients with chest pain. This study evaluates the safety and efficacy of the HET score for 30-day cardiac death or myocardial infarction (MI).
Methods: We conducted a secondary analysis of the STOP-CP multisite cohort study.
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