pachydermodactyly is a rare and benign disease that may be idiopathic, genetic, acquired as a response to repetitive trauma, or associated with several other acquired conditions often pushing the health caregiver to do a bunch of costly lab tests and diagnostic workups to rule out other entities. all health care givers must be aware about this disease for reassure the patients and cut unnecessa...

background: infections include soft tissue infections are notable reason for hospital admission among idus, owing to unsterile injection techniques and equipment, contamination of drugs with organisms, and poor hygiene. in present case report a patient with profound limb infection is introduced. case: a 32 years old man was transferred to the emergency department. he was idu with iranian for 3 ...

statement of the problem: most of the soft tissue calcifications within the head and neck region might not be accompanied by clinical symptoms but may indicate some pathological conditions. purpose: the aim of this research was to determine the prevalence of soft tissue calcifications in cone beam computed tomography (cbct) images of mandibular region. materials and method: in this cross sectio...

Nowadays on medical and healthcare areas, training and learning methods for surgeons are based on skills development. In order to improve this learning process, virtual reality simulators have been proposed due its capacity to reproduce surgical procedures without any risk or harm on patient. These devices represent a wide research area that involves multiple fields of knowledge, such as mechat...

A stable and accurate deformable model to simulate the deformation of soft tissues is a challenging area of research. This paper describes a soft tissue simulation method that can deform multiple organs synchronously and interact with virtual surgical instruments accurately. The model we used in our method is a multi-organ system by point masses and springs. The organs that anatomically connect...

1 General Issues in Surgery Simulation 2 1.1 Surgical Simulators . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1.1 Medical Impact of Surgical Simulators . . . . . . . . . . . 2 1.1.2 Classi cation of Surgical Simulators . . . . . . . . . . . . 3 1.2 Simulator Architecture . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.1 Geometric Modeling . . . . . . . . . . . . . . . . . . . ....

Human body 3D scanners are becoming a mature technology that generates accurate static photo-realistic 3D models of real human beings. However the data collected allow only the construction of the outer surface of the body. In this paper we describe how from 3D surface data we generate 3D volumetric meshes of soft tissues suitable for the finite element method (FEM). We then deform these meshes...

In this study, a phenomenological tissue damage model has been developed to describe the fatigue-induced stress softening and permanent set of biological tissues. Since damage evolution is an irreversible dissipative process, following thermodynamic principles, an equivalent strain proportional to the strain energy of the material is employed as the damage criterion. The maximum equivalent stra...