A5008768347- Dental Health and Care Utilization
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Advanced X-ray and CT Imaging
- Oral microbiology and periodontitis research
- Pediatric health and respiratory diseases
- Indigenous Health, Education, and Rights
- Dental Education, Practice, Research
- Dental Anxiety and Anesthesia Techniques
- Nuclear Physics and Applications
- Child and Adolescent Health
- Dental Research and COVID-19
- Radiation Dose and Imaging
- Cleft Lip and Palate Research
- Advanced Radiotherapy Techniques
- Innovations in Medical Education
- Dental Implant Techniques and Outcomes
- Global Health Workforce Issues
- Indigenous Studies and Ecology
- HIV/AIDS oral health manifestations
- Digital Radiography and Breast Imaging
- Periodontal Regeneration and Treatments
- Infant Development and Preterm Care
- Pediatric Pain Management Techniques
- Atomic and Subatomic Physics Research
University of Washington
1990-2023
University of British Columbia
2006-2017
American Association of Orthodontists
2015
Nova Southeastern University
2015
South University
2015
Louisiana State University Health Sciences Center New Orleans
2015
University of Washington Medical Center
2002-2005
The University of Texas Medical Branch at Galveston
1987-1990
Dalhousie University
1989
We are developing a software simulation system for emission tomography (SimSET). All the is being designed and documented using modern engineering techniques. As modules in completed they will be placed public domain. The first module of SimSET to released, photon history generator (PHG), tracks photons through tomograph field-of-view. PHG incorporates importance sampling [I] allows source activity attenuation modeled as voxelized objects three dimensions. input format object has been chosen...
This cluster-randomized pragmatic (effectiveness) trial tested maternal counseling based on Motivational Interviewing (MI) as an approach to control caries in indigenous children. Nine Cree communities Quebec, Canada were randomly allocated test or control. MI-style was delivered mothers during pregnancy and at well-baby visits. Data outcomes collected when children 30 months old. Two hundred seventy-two recruited from the 5 4 communities. Baseline characteristics comparable but not...
Young children with extensive dental decay often require a general anesthetic (GA) to enable treatment. The purpose of this study was develop grounded theory help our understanding the processes that influence parental adoption dentally healthy behaviors following experience their child's “dental anesthetic.” Twenty six interviews were conducted. Data analyzed and conceptual model generated. Overall, GA had an immediate, but short-lived, impact on behavior change. Parents difficulty over...
Abstract – The objective of this project was to design, implement and evaluate an oral health promotion program for inner‐city Vietnamese preschool children in Vancouver, British Columbia, Canada. comprised four general phases: information‐gathering, planning, implementation, evaluation. information‐gathering phase the demonstrated extensive tooth decay young children, bottle use during day sleep‐time long past recommended weaning age, a belief many parents that primary teeth were not...
Summary. Objectives. Caries relapse after treatment of early childhood caries (ECC) under general anaesthesia (GA) has been frequently reported. This research used a qualitative method inquiry to explore parents’ experience their child's GA, and perception the impact this on child. Methods. The participants were parents whose children had recently undergone dental rehabilitation GA. Data was collected by semistructured, open‐ended interviews scheduled at postoperative appointment. Interviews...
We measured count rates and scatter fraction on the Discovery STE PET/CT scanner in conventional 2D 3D acquisition modes, a partial collimation mode between 3D.As part of evaluation using collimation, we estimated global model that combined computer simulations with an empirical live-time function.Our measurements followed NEMA NU2 rate scatter-fraction protocol to obtain true, scattered random coincidence events, from which noise equivalent (NEC) were calculated.The effect patient size was...
We investigated the relationship between noise equivalent count (NEC) and axial field of view (AFOV) for PET scanners with AFOVs ranging from one-half to twice those current clinical scanners. longer or shorter could fulfill different needs depending on exam volumes site economics. Using previously validated Monte Carlo simulations, we modeled true, scattered random coincidence counting rates a ring diameter 88 cm 2, 4, 6, 8 rings detector blocks (AFOV 7.8, 15.5, 23.3, 31.0 cm). Fully 3D...
The development for public distribution of a general-purpose code, SIMSET, the modeling positron-emission and single-photon-emission tomographs (PET SPECT) is discussed. An important part SIMSET project methods efficient photon simulation which can handle heterogeneous distributions activity attenuation. For both positron single-photon tomographs, solid angle acceptance detector array small, due to collimation size itself. This results in significant computational inefficiencies with...
The goal of this cluster randomized trial is to test the effectiveness a counseling approach, Motivational Interviewing, control dental caries in young Aboriginal children. client-centred, directive style, has not yet been evaluated as an approach for promotion behaviour change indigenous communities remote settings. women were hired from 9 recruit expectant and new mothers trial, administer questionnaires deliver communities. receive intervention during pregnancy at their child's...
Abstract – Surveys of the dental health Native children in British Columbia, Canada, were conducted 1980, 1984 and 1988 by Medical Services Branch, Health Welfare Canada. Data gathered on turning 5, 7, 9, 11, 13, 15 yr age each survey year. This paper analyzes findings related to caries treatment caries. Comparisons made between 1980 surveys using Student's t ‐tests; data from included for comparison. Results these demonstrate a continuous improvement years 1988, but was limited permanent...