Closed-form constitutive models are currently the standard approach for describing soft tissues’ mechanical behavior. However, there inherent pitfalls to this approach. For example, explicit functional forms can lead poor fits, non-uniqueness of those and exaggerated sensitivity parameters. Here we overcome some these problems by designing deep neural networks (DNN) replace such expert models. ...

Surgical simulation has many applications in medical education, surgical training, surgical planning and intra-operative assistance. However, extending current surface-based computer graphics methods to model phenomena such as the deformation, cutting, tearing or repairing of soft tissues poses significant challenges for real-time interactions. This paper discusses the use of volumetric methods...

We have improved the ArtiSynth biomechanical modeling toolkit to meet new challenges in oral, pharyngeal and laryngeal modeling. Our team’s current research efforts have focused on four important developments: 1. patient specific modeling, 2. updating the ArtiSynth simulation engine to support integrated soft and hard tissue models, 3. inverse modeling techniques and 4. computational fluid dyna...

Residual stress is the stress which remains in a deformable body in the absence of external forces. Due to the release of residual stress after cutting, soft tissues will shrink and the wound will open. Thus, to realistically simulate soft tissue deformations due to cutting, a model for the residual stress in a patient body is needed. In this paper we present an interactive method to compute a ...

Most of today's medical simulation systems are based on geometric representations of anatomical structures that take no account of their physical nature. Representing physical phenomena and, more speci cally the realistic modeling of soft tissue will not only improve current medical simulation systems but will considerably enlarge the set of applications and the credibility of medical simulatio...

 Dental implants, as a result of their excellent success rates and advantages over fixed or removable methods, have become the optimal treatment for replacing missing teeth. Surgical and restorative techniques that can reduce the loss of hard and soft tissues that often accompany implant placement are desirable. Achieving an esthetic outcome in tooth replacement and implant treatment requires a...

Soft tissue modeling is the process of representing soft tissues present in human skin. Modeling and simulation in the field of medical applications related to virtual surgery has increased the need for creating high quality meshes using various techniques. This paper focuses on Delaunay model representation because it has many desirable qualities suitable for practical applications. Most commo...

the musculoskeletal extrapulmonary tuberculosis is uncommon, the upper extremity tuberculosis is not common and the mycobacterial involvement of skin of hands and synovial sheath of tendons is rare. this prospective observational study was undertaken between august  2014 and december 2015 in a tertiary referral hospital. patients attending with suspected primary tuberculosis of soft tissue of t...

The nonlinear viscoelastic passive properties of three canine intrinsic laryngeal muscles, the lateral cricoarytenoid (LCA), the posterior cricoarytenoid (PCA), and the interarytenoid (IA), were fit to the parameters of a modified Kelvin model. These properties were compared with those of the thyroarytenoid (TA) and cricothyroid (CT) muscles, as well as previously unpublished viscoelastic chara...

Porous membranes/scaffolds such as guided tissue regeneration (GTR) membranes, cell sheets, tissue matrices or polymeric meshes are being widely used in soft tissue engineering to regenerate damaged, diseased tissue or wound. These membranes are mostly regular porous structures with repeating internal architecture. When they are applied onto wound area, various forces caused by bandage, contrac...