This paper relates to the improvement of conventional surgical stereo microscopy via the application of digital recording devices and adaptive optics. The research is aimed at improving the working conditions of the surgeon during the operation, such that free head movement is possible. The depth clues known from conventional stereo microscopy in interaction with the human eye’s functionality, such as convergence, disparity, angular elevation, parallax, and accommodation, are implemented in a digital recording system via adaptive optomechanical components. Two laterally moving pupil apertures have been used mimicking the digital implementation of the eye’s vergence and head motion. The natural eye’s accommodation is mimicked via the application of a tunable lens. Additionally, another system has been built, which enables tracking the surgeon’s eye pupil through a digital displaying stereoscopic microscope to supply the necessary information for steering the recording system. The optomechanical design and experimental results for both systems, digital recording stereoscopic microscope and pupil tracking system, are shown.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1117/1.JBO.22.5.056007 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Coronary CT angiography-guided management of patients with stable chest pain: 10-year outcomes from the SCOT-HEART randomised controlled trial in Scotland.
Lancet
January 2025
British Heart Foundation Centre of Research Excellence, University of Edinburgh, Edinburgh, UK; Edinburgh Imaging, University of Edinburgh, Edinburgh, UK.
Background: The Scottish Computed Tomography of the Heart (SCOT-HEART) trial demonstrated that management guided by coronary CT angiography (CCTA) improved the diagnosis, management, and outcome of patients with stable chest pain. We aimed to assess whether CCTA-guided care results in sustained long-term improvements in management and outcomes.
Methods: SCOT-HEART was an open-label, multicentre, parallel group trial for which patients were recruited from 12 outpatient cardiology chest pain clinics across Scotland.
Promoting interactional health equity through (Complementary and Integrative Health) talk during clinical encounters.
Patient Educ Couns
January 2025
Department of Communication Studies, San Francisco State University, San Francisco, USA; Medical Cultures Lab, University of California, San Francisco, USA.
Objectives: Complementary and Integrative Health (CIH) is recognized as a set of modalities to bolster health and well-being often outside of standard biomedical practice. How people discuss CIH with their biomedical providers is a microcosm for health communication more generally. In this Discussion, we propose a revision of the Street et al.
View Article and Find Full Text PDFEvaluation of Biodentine® and Calcium Hydroxide in the Formation of Dentin Bridge in Deep Carious Lesions.
West Afr J Med
September 2024
.Department of Preventive Dentistry, Lagos State University, College of Medicine, Faculty of Dentistry, Ikeja, Lagos, PMB 21266, Nigeria.
Background: Indirect pulp capping is the main treatment modality for reversible pulpitis.
Objective: To evaluate the efficacy of Biodentine® and Calcium hydroxide in the formation of dentin bridge.
Materials And Methods: A double blinded, randomized clinical control trial involving 50 consenting subjects, aged 16 to 55 years with deep carious vital teeth.
Machine Learning Models for the Early Real-Time Prediction of Deterioration in Intensive Care Units-A Novel Approach to the Early Identification of High-Risk Patients.
J Clin Med
January 2025
Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, 22083 Berlin, Germany.
Predictive machine learning models have made use of a variety of scoring systems to identify clinical deterioration in ICU patients. However, most of these scores include variables that are dependent on medical staff examining the patient. We present the development of a real-time prediction model using clinical variables that are digital and automatically generated for the early detection of patients at risk of deterioration.
View Article and Find Full Text PDFBiomechanical Behaviors of Molars Restored with Endocrowns Composed of Different Materials.
Materials (Basel)
January 2025
Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing 100101, China.
To assess the biomechanical behaviors of endodontically treated molars (ETMs) restored with endocrowns composed of different materials, forty mandibular molars were assigned to five groups (n = 8 each). Untreated molars constituted the control group (group C); the rest of the teeth that underwent root canal therapy were restored with endocrowns composed of polycrystalline ceramics (ST zirconia, UPCERA) in group ZR, lithium disilicate glass ceramics (UP.CAD, UPCERA) in group LD, resin-based nanoceramics (Hyramic, UPCERA) in group NC, and feldspathic ceramics (CEREC Blocs, Sirona) in group FC.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!