A5015241597- Radiation Dose and Imaging
- Radiology practices and education
- Trauma Management and Diagnosis
- Trauma and Emergency Care Studies
- Advanced X-ray and CT Imaging
- Cardiac Arrest and Resuscitation
- Topic Modeling
- Aortic Disease and Treatment Approaches
- Ultrasound in Clinical Applications
- Abdominal Trauma and Injuries
- Pelvic and Acetabular Injuries
- Radiomics and Machine Learning in Medical Imaging
- Biomedical Text Mining and Ontologies
- Cardiac Imaging and Diagnostics
- Medical Imaging Techniques and Applications
- Artificial Intelligence in Healthcare and Education
- Appendicitis Diagnosis and Management
- Aortic aneurysm repair treatments
- Machine Learning in Healthcare
- Gastrointestinal disorders and treatments
- Advanced MRI Techniques and Applications
- Venous Thromboembolism Diagnosis and Management
- MRI in cancer diagnosis
- Gastrointestinal Bleeding Diagnosis and Treatment
- Natural Language Processing Techniques
University of Washington
2014-2024
University of Washington Applied Physics Laboratory
2022
Harborview Medical Center
2008-2021
Dream Laboratory (United Kingdom)
2021
Philips (United States)
2017-2018
University of Colorado Denver
2017-2018
Seattle University
2008-2014
University of Washington Medical Center
2008-2014
Newcastle upon Tyne Hospitals NHS Foundation Trust
2014
Waitemata District Health Board
2008
To determine how physicians' diagnoses, diagnostic uncertainty, and management decisions are affected by the results of computed tomography (CT) in emergency department settings.This study was approved institutional review board compliant with HIPAA. Data were collected between July 12, 2012, January 13, 2014. The requirement to obtain patient consent waived. In this prospective, four-center study, patients presenting who referred for CT abdominal pain, chest pain and/or dyspnea, or headache...
Efforts to determine the suitability of low-grade pancreatic injuries for nonoperative management have been hindered by inaccuracy older computed tomography (CT) technology detecting injury (PI). This retrospective, multicenter American Association Surgery Trauma-sponsored trial examined sensitivity newer 16- and 64-multidetector CT (MDCT) PI, sensitivity/specificity identification ductal (PDI).Patients who received a preoperative or 64-MDCT followed laparotomy with documented PI were...
Purpose To investigate performance in detectability of small (≤1 cm) low-contrast hypoattenuating focal lesions by using filtered back projection (FBP) and iterative reconstruction (IR) algorithms from two major CT vendors across a range 11 radiation exposures. Materials Methods A phantom consisting 21 objects (seven sizes between 2.4 10.0 mm, three contrast levels) embedded into liver-equivalent background was scanned at exposures (volume dose index range, 0.5–18.0 mGy; size-specific...
Purpose To describe the high-resolution computed tomography (CT) findings occurring in bronchiolitis obliterans syndrome (BOS) after hematopoietic stem cell transplantation (HSCT) and to determine relationship between pulmonary function tests (PFTs) air trapping detected on expiratory CT. Materials Methods The CT scans of 33 patients who underwent HSCT subsequently developed BOS were evaluated by 2 observers blinded PFT results. Scans ranked for degree scored bronchial wall thickening,...
The Radpeer system is central to the quality assurance process in many radiology practices. Previous studies have shown poor agreement between physicians evaluation of their peers. purpose this study was assess reliability scoring system.A sample 25 discrepant cases extracted from our database. Images were made anonymous; associated reports and identities interpreting radiologists removed. Indications for descriptions discrepancies provided. Twenty-one subspecialist attending rated using...
Background Patients resuscitated from out-of-hospital circulatory arrest (OHCA) frequently have cardiopulmonary resuscitation injuries identifiable by computed tomography, although the prevalence, types of injury, and effects on clinical outcomes are poorly characterized. Methods Results We assessed prevalence resuscitation-associated in a prospective, observational study head-to-pelvis sudden-death tomography scan within 6 hours successful OHCA resuscitation. Primary included total...
Gastrointestinal (GI) bleeding is a common potentially life-threatening medical condition frequently requiring multidisciplinary collaboration to reach the proper diagnosis and guide management. GI can be overt (eg, visible hemorrhage such as hematemesis, hematochezia, or melena) occult positive fecal blood test iron deficiency anemia). Upper bleeding, which originates proximal ligament of Treitz, more than lower arises distal Treitz. Small bowel accounts for 5-10% cases commonly manifesting...
Abstract Objectives Patients resuscitated from an out‐of‐hospital circulatory arrest (OHCA) commonly present without obvious etiology. We assessed the diagnostic capability and safety of early head‐to‐pelvis computed tomography (CT) imaging in such patients. Methods From November 2015 to February 2018, we enrolled 104 patients OHCA cause (idiopathic OHCA) sudden‐death CT (SDCT) scan protocol within 6 h hospital arrival. The SDCT included a noncontrast head, electrocardiogram‐gated cardiac...