A5059803956- Anatomy and Medical Technology
- Surgical Simulation and Training
- Reconstructive Surgery and Microvascular Techniques
- Reconstructive Facial Surgery Techniques
- Dental Implant Techniques and Outcomes
- Organ and Tissue Transplantation Research
- Orthopaedic implants and arthroplasty
- Dental Radiography and Imaging
- Additive Manufacturing and 3D Printing Technologies
- Advanced X-ray and CT Imaging
- 3D Printing in Biomedical Research
- Facial Trauma and Fracture Management
- Artificial Intelligence in Healthcare and Education
- Traumatic Brain Injury and Neurovascular Disturbances
- Craniofacial Disorders and Treatments
- Dental materials and restorations
- Lower Extremity Biomechanics and Pathologies
- Advanced Fiber Optic Sensors
- Facial Nerve Paralysis Treatment and Research
- Advanced Radiotherapy Techniques
- Lung Cancer Diagnosis and Treatment
- Hernia repair and management
- Digital Imaging in Medicine
- Periodontal Regeneration and Treatments
- Esophageal and GI Pathology
Walter Reed National Military Medical Center
2015-2024
Uniformed Services University of the Health Sciences
2012-2023
University of Kentucky
2022
Virginia Commonwealth University
2003-2022
University of Maryland, Baltimore
2022
VA Puget Sound Health Care System
2022
University of Washington
2022
John Wiley & Sons (United States)
2022
Engineering Associates (United States)
2022
Naval Postgraduate School
2013-2021
Medical three-dimensional (3D) printing has expanded dramatically over the past three decades with growth in both facility adoption and variety of medical applications. Consideration for each step required to create accurate 3D printed models from imaging data impacts patient care management. In this paper, a writing group representing Radiological Society North America Special Interest Group on Printing (SIG) provides recommendations that have been vetted voted by SIG active membership....
This article describes the design, construction, and properties of an anthropomorphic thorax phantom with a moving surrogate tumor. novel permits detection dose both inside outside tumor within substitute lung tissue material. A 3D printer generated shell composed chest wall, spinal column, posterior regions phantom. Images computed tomography scan from patient cancer provided template for printing. The plastic is segmented into two materials representing muscle bones, its geometry closely...
Three Dimensional (3D) printed models can aid in effective pre-operative planning by defining the geometry of tumor mass, bone loss, and nearby vessels to help determine most accurate osteotomy site appropriate prosthesis, especially case complex acetabular deficiency, resulting decreased operative time blood loss.Four complicated cases were selected, reconstructed printed. These 4 divided 3 groups 3D models. Group 1 consisted anatomical with major vascular considerations during surgery. 2...
Purpose To demonstrate the use of anatomic MRI‐visible three‐dimensional (3D)‐printed phantoms and to assess process accuracy material MR signal properties. Methods A cervical spine model was generated from computed tomography (CT) data 3D‐printed using an signal‐generating material. Printed phantom characteristics were assessed 120 kVp CT 3 Tesla (T) imaging. The relaxation rates diffusion coefficient fabricated measured 1 H spectra acquired provide insight into nature proton signal....
As the medical applications of three-dimensional (3D) printing increase, so does number health care organizations in which adoption or expansion 3D facilities is under consideration. With recent advancements technology, practitioners have embraced this powerful tool to help them deliver high-quality patient care, with a focus on sustainability. The use hospital clinic at point (POC) has profound potential, but its not without unanticipated challenges and considerations. authors provide basic...
Computational models of musculoskeletal joints and limbs can provide useful information about joint mechanics. Validated be used as predictive devices for understanding function serve clinical tools predicting the outcome surgical procedures. A new computational modeling approach was developed simulating kinematics that are dictated by bone/joint anatomy, ligamentous constraints, applied loading. Three-dimensional lower leg were created to illustrate application this approach. Model...
Treatment of battlefield trauma presents a unique set challenges, among which is the logistical challenge providing sterile surgical instruments to surgeons. Transport and supply constraints limit quantity variety available in field sterilization equipment often not support on hand. Furthermore, it difficult predict exact type needed by surgeon field.New manufacturing technology offers compelling solution overcome challenge. Durable, biocompatible plastic resins can be formed into any shape...
This work describes customized, task-specific simulation models derived from 3D printing in clinical settings and medical professional training programs. Simulation models/task trainers have an array of purposes desired achievements for the trainee, defining that these are first step production process. After this purpose is defined, computer-aided design (additive manufacturing) used to create a customized anatomical model. then undergo initial in-house testing by specialists followed...
Abstract In order to restore an extraoral maxillofacial defect, a moulage impression is commonly made with traditional materials. This technique has some disadvantages, including distortion of the site due weight material, changes in tissue location modifications patient position, and length time discomfort for procedure materials used. The use commercially available 3dMDface™ System creates 3D images soft tissues form anatomically accurate surface image. Rapid prototyping converts virtual...
The effects of reduced radiation dose CT for the generation maxillofacial bone STL models 3D printing is currently unknown. Images two full-face transplantation patients scanned with non-contrast 320-detector row were reconstructed at fractions acquisition using noise simulation software and both filtered back-projection (FBP) Adaptive Iterative Dose Reduction (AIDR3D). model segmented thresholding from AIDR3D images 100 % was considered reference. For all other dose/reconstruction method...
Posterior tibial tendon insufficiency, or adult acquired flatfoot deformity, involves collapse of the longitudinal arch foot with ensuing changes in bony architecture as well. While it is generally accepted that a medializing calcaneal osteotomy (MCO) very useful treatment for restoring fallen arch, questions regarding effects this procedure upon plantar pressures and Achilles length need to be answered. This study focuses on result performing MCO. Fourteen fresh-frozen cadaver legs were...
To compare retentive forces of removable partial denture clasps traditionally fabricated with cobalt-chromium (CoCr) material and two computer-aided design manufactured (CAD/CAM) thermoplastic polymers.Forty-eight clasp assemblies (16 CoCr, 16 polyetheretherketone (PEEK) polyetherketoneketone (PEKK) polymer) were for 48 mandibular tooth analogs. Individual inserted removed on the analogs utilizing a chewing simulator 15,000 cycles to simulate 10 years use. Retentive measured mechanical load...
In recent years there has been considerable interest in utilizing embedded fiber optic based sensors for fabricating smart materials. One of the primary motivations is to provide real-time informat...
Introduction Facial transplantation represents one of the most complicated scenarios in craniofacial surgery because skeletal, aesthetic, and dental discrepancies between donor recipient. However, standard off-the-shelf vendor computer-assisted systems may not provide custom features to mitigate increased complexity this particular procedure. We propose develop a solution customized for preoperative planning, intraoperative navigation including cutting guides, dynamic, instantaneous feedback...
The prosthetic devices the military uses to restore function and mobility our wounded warriors are highly advanced, in many instances not publically available. There is considerable research aimed at this population of young patients who extremely active desire take part numerous complex activities. While prosthetists design manufacture with standard materials limb assemblies, often require individualized and/or modifications enable them participate fully activities.Prosthetists engineers...
Advanced visualization of medical image data in the form three-dimensional (3D) printing continues to expand clinical settings and many hospitals have started adapt 3D technologies aid patient care. It is imperative that radiologists other professionals understand multi-step process converting imaging digital files. To educate health care about steps required prepare DICOM for anatomical models, hands-on courses been delivered at Radiological Society North America (RSNA) annual meeting since...
The neuropathology associated with cognitive decline in military personnel exposed to traumatic brain injury (TBI) and chronic stress is incompletely understood. Few studies have examined clinicopathologic correlations between phosphorylated-tau neurofibrillary tangles, β-amyloid neuritic plaques, neuroinflammation, or white matter (WM) lesions, neuropsychiatric disorders veterans. We describe findings 4 veterans early-onset dementia (EOD) who had varying histories of blunt- blast-TBI,...