Dennis Ren

ORCID: 0009-0008-2146-7140
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About
Contact & Profiles
Research Areas
  • Artificial Intelligence in Healthcare and Education
  • Clinical Reasoning and Diagnostic Skills
  • 3D Surveying and Cultural Heritage
  • Neonatal Health and Biochemistry
  • Trauma and Emergency Care Studies
  • Bone fractures and treatments
  • Remote Sensing and Land Use
  • Peripheral Neuropathies and Disorders
  • Neonatal Respiratory Health Research
  • Simulation-Based Education in Healthcare
  • Asthma and respiratory diseases
  • Optical measurement and interference techniques
  • Trauma, Hemostasis, Coagulopathy, Resuscitation
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Bone health and osteoporosis research
  • Vaccine Coverage and Hesitancy
  • Pediatric Urology and Nephrology Studies
  • Vascular Malformations and Hemangiomas
  • Seismic Imaging and Inversion Techniques
  • Child and Adolescent Health
  • Mobile Health and mHealth Applications
  • Data Visualization and Analytics
  • Infant Health and Development
  • Hospital Admissions and Outcomes
  • Myasthenia Gravis and Thymoma

Children's National
2024

ORCID
2024

George Washington University
2022-2024

Central China Normal University
2024

Queen Mary University of London
2024

University of California, Santa Barbara
2020

Tulane University
2014-2016

American Academy of Orthopaedic Surgeons
2015

Orthopaedic Trauma Association
2015

Duke University Hospital
2015

Background: There is increasing evidence associating "atypical" femoral fractures with prolonged exposure to bisphosphonate therapy. The cause of these unknown and likely multifactorial. This study evaluated the hypothesis that patients primary osteoporosis who sustain atypical fracture(s) while on chronic therapy have a more varus proximal geometry than use bisphosphonates for but do not fracture. Methods: neck-shaft angle was measured radiographs 111 shaft thirty-three asymptomatic...

10.2106/jbjs.n.00075 article EN Journal of Bone and Joint Surgery 2014-11-19

Abstract In this paper, we introduce Canis, a high‐level domain‐specific language that enables declarative specifications of data‐driven chart animations. By leveraging data‐enriched SVG charts, its grammar animations can be applied to the charts created by existing construction tools. With designers select marks from partition selected into mark units based on data attributes, and apply animation effects units, with control when start. The Canis compiler automatically synthesizes Lottie...

10.1111/cgf.14005 article EN Computer Graphics Forum 2020-06-01

The use of fluoroscopy for indirect guidance in orthopaedic trauma surgery has increased. purpose this investigation was to assess how real-time visualization radiation exposure impacts dose levels during operations.Observational comparative study.Level 1 center operating room.The participants study were 83 patients with fractures the ankle, tibia, femur, or acetabulum receiving definitive surgical fixation their fracture; children under 18 years age excluded from study. Fellowship trained...

10.1097/bot.0000000000000442 article EN Journal of Orthopaedic Trauma 2015-09-11

Evaluate the accuracy and reliability of various generative artificial intelligence (AI) models (ChatGPT-3.5, ChatGPT-4.0, T5, Llama-2, Mistral-Large, Claude-3 Opus) in predicting Emergency Severity Index (ESI) levels for pediatric emergency department patients assess impact medically oriented fine-tuning. Seventy clinical vignettes from ESI Handbook version 4 were used as gold standard. Each AI model predicted level each vignette. Performance metrics, including sensitivity, specificity, F1...

10.1097/pec.0000000000003315 article EN Pediatric Emergency Care 2025-01-06

Slow-moving landslides pose significant long-term hazards in seismically active mountainous regions. However, their subtle deformation patterns and complex internal structures present challenges for accurate identification monitoring using conventional methods. This study integrates remote sensing technologies, including InSAR, DIC, LiDAR, UAV photogrammetry, to comprehensively analyze the Shibatai creep landslide Wenchuan earthquake-affected area. Results reveal that exhibits a four-stage...

10.3389/feart.2025.1498028 article EN cc-by Frontiers in Earth Science 2025-02-27

In digital holographic microscopy, parasitic fringes caused by optical components and phase aberration introduced the system are crucial issues that constrain measurement accuracy reconstructed image quality. This paper presents a straightforward effective physical approach to simultaneously compensate eliminate in reflective microscopy. By modulating polarization states of both beams sample beam, combined with polarized beam splitter element, can be efficiently eliminated. An improved...

10.1364/oe.560706 article EN cc-by Optics Express 2025-03-26

This survey study assesses the ability of health care professionals to discern whether abstracts were written by investigators or an artificial intelligence (AI) chatbot.

10.1001/jamapediatrics.2024.0760 article EN JAMA Pediatrics 2024-04-29

Major trauma is a principal cause of morbidity and mortality in children. Severe haemorrhage the second-leading death paediatric trauma, preceded by traumatic brain injury. protocols (MHPs), also known as ‘code red’ ‘massive transfusion protocols’, are used to make large volumes blood products rapidly available. Most recommendations for MHPs extrapolated from adult data because lack large, high-quality, prospective studies. However, applying context requires caution due differences injury...

10.1136/archdischild-2024-327224 article EN Archives of Disease in Childhood Education & Practice 2024-06-24

Objectives During the COVID-19 pandemic, there was a marked shift toward telesimulation in medical education. Limited studies exist comparing effectiveness of online and offline simulation The goals this study are to evaluate active learners' perceived versus situ identify potential shortcomings existing teaching platforms. Methods Through participant evaluations after simulation, we compared using Virtual Resus Room (VRR) domains (1) self-efficacy, (2) fidelity, (3) educational value, (4)...

10.1097/pec.0000000000003256 article EN Pediatric Emergency Care 2024-08-23

Objective: This study aimed to understand pediatricians’ experiences with disasters, their perceptions of potential threats, and preferences for disaster education. Design: is a survey study. Background: The increasing frequency disasters highlights the need specialized care vulnerable populations, particularly children. Pediatricians play crucial role in preparedness, but they are underprepared due insufficient disaster-specific Methods: A was conducted among pediatricians Washington, DC,...

10.5055/ajdm.0487 article EN American Journal of Disaster Medicine 2024-12-31

To understand the baseline quality of team communication behaviors at our organization, we implemented institution-wide simulation training and measured performance safety ad hoc teams in emergent situations.Clinicians participated 2 interprofessional video-recorded scenarios, each followed by debriefing. Using a standardized evaluation instrument, reviewers independently evaluated presence or absence desired behaviors, including escalating care, sharing mental model, establishing...

10.1097/sih.0000000000000575 article EN Simulation in Healthcare The Journal of the Society for Simulation in Healthcare 2021-03-29

10.1177/0009922816638661 article EN Clinical Pediatrics 2016-03-19
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