PURPOSE The aim of this study was to evaluate the tissue stiffness of solid pancreatic lesions by using acoustic radiation force impulse (ARFI) elastography to differentiate benign from malignant pancreatic lesions. METHODS ARFI elastography was performed in 26 patients who had 27 focal solid pancreatic lesions, including 8 benign lesions (mass-forming pancreatitis, 5; autoimmune pancreatitis...

AIMS The objective of the study was to investigate the value of acoustic radiation force impulse (ARFI) and its application in Achilles tendon elasticity of healthy volunteers. METHODS Bilateral Achilles tendons of 56 healthy individuals were included in the study. The subjects were divided into four age groups. Shear wave velocities (SWVs) of each tendon in the states of relaxation and tensi...

Building virtual agents that are able to perceive and appraise touch increase the lifelikeness and interaction possibilities in human computer interaction. In this paper we introduce work on how a sense of touch was realized for the virtual human Max and how he can emotionally react to it by appraising the different kinds of tactile sensation.

• Haptic stimulation of endorphin acts to bond relationships in primates and humans. Humans have found ways trigger the system virtually without touch. Virtual ‘touch’ allows humans ‘groom’ at a distance with more individuals. Touch forms central component social bonding, both humans, via brain’s system. In primates, this involves grooming, acting CT neuron Although still use soft touch for bon...

One of the most compelling challenges in virtual reality today is to allow users to carry out virtual manipulation tasks using their hands. Multi-touch devices are an interesting interface for this task, as they are widely available, they provide users with some haptic sensation of their motions, and they give very precise locations of the fingertips. We introduce a quadratic encoding technique...

Virtual surface characteristics of tactile displays are investigated to characterize the feeling of human touch for a haptic interface application. In order to represent the tactile feeling, a prototype tactile display incorporating Magneto-Rheological (MR) fluid has been developed. Tactile display devices simulate the finger's skin to feel the sensations of contact such as compliance, friction...

frozen section and touch imprint cytology are important diagnostic procedures for surgeons during operation and must be accurate if the patient is to receive maximum benefit. to assess the accuracy of intraoperative pathologic consultation including frozen section and touch imprint cytology during a five year period (1995- 2000), a retrospective survey of 1000 consecutive cases of frozen sectio...