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Shape-matching-based fracture reduction aid concept exemplified on the proximal humerus-a pilot study.
Int J Comput Assist Radiol Surg
January 2025
AO Research Institute Davos, Davos, Switzerland.
Purpose: Optimizing fracture reduction quality is key to achieve successful osteosynthesis, especially for epimetaphyseal regions such as the proximal humerus (PH), but can be challenging, partly due to the lack of a clear endpoint. We aimed to develop the prototype for a novel intraoperative C-arm-based aid to facilitate true anatomical reduction of fractures of the PH.
Methods: The proposed method designates the reduced endpoint position of fragments by superimposing the outer boundary of the premorbid bone shape on intraoperative C-arm images, taking the mirrored intact contralateral PH from the preoperative CT scan as a surrogate.
Mind the leaf anatomy while taking ground truth with portable chlorophyll meters.
Sci Rep
January 2025
Department of Plant Experimental Biology, Faculty of Science, Charles University, Viničná 5, 12800, Prague, Czech Republic.
A wide range of portable chlorophyll meters are increasingly being used to measure leaf chlorophyll content as an indicator of plant performance, providing reference data for remote sensing studies. We tested the effect of leaf anatomy on the relationship between optical assessments of chlorophyll (Chl) against biochemically determined Chl content as a reference. Optical Chl assessments included measurements taken by four chlorophyll meters: three transmittance-based (SPAD-502, Dualex-4 Scientific, and MultispeQ 2.
View Article and Find Full Text PDFAccuracy of Automated External Defibrillator Pad Placement During Out-of-Hospital Cardiac Arrest Resuscitation Simulations.
Prehosp Emerg Care
January 2025
Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, Michigan.
Objectives: Out-of-hospital cardiac arrest (OHCA) victims receiving defibrillation from an automated external defibrillator (AED) placed early in the chain of survival are more likely to survive. We sought to explore the accuracy of AED pad placement for lay rescuers (LR) and first responders (FR).
Methods: We conducted a secondary analysis of data collected during randomized OHCA simulation trials involving LRs and FRs.
Automated characterisation of cerebral microbleeds using their size and spatial distribution on brain MRI.
Eur Radiol Exp
January 2025
Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK.
Cerebral microbleeds (CMBs) are small, hypointense hemosiderin deposits in the brain measuring 2-10 mm in diameter. As one of the important biomarkers of small vessel disease, they have been associated with various neurodegenerative and cerebrovascular diseases. Hence, automated detection, and subsequent extraction of clinically useful metrics (e.
View Article and Find Full Text PDFLow-cost male urogenital simulator for penile implant surgery training: a 3D printing approach.
3D Print Med
January 2025
Department of Surgical & Interventional Engineering, School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK.
Background: Penile implant surgery is the standard surgical treatment for end-stage erectile dysfunction. However, the growing complexity of modern high-tech penile prostheses has increased the demand for more practical training opportunities. The most advanced contemporary training methods involve simulation training using cadavers, with costs exceeding $5,000 per cadaver, inclusive of biohazard fees.
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