Osteosarcopenia in rheumatoid arthritis treated with glucocorticosteroids - essence, significance, consequences.

Rheumatoid arthritis (RA) is one of the most common rheumatic diseases, associated with cooccurrence of serious side effects. This study discusses the problems associated with chronic RA, well-known as osteoporosis, but also recently recognized as sarcopenia. Relationships between sarcopenia and rheumatic diseases are not yet fully understood.

Sensitivity Ellipsoids for Force Control of Magnetic Robots with Localization Uncertainty.

The navigation of magnetic medical robots typically relies on localizing an actuated, intracorporeal, ferromagnetic body and back-computing a necessary field and gradient that would result in a desired wrench on the device. Uncertainty in this localization degrades the precision of force transmission. Reducing applied force uncertainty may enhance tasks such as navigation of miniature robots, actuation of magnetically guided catheters, tissue palpation, as well as simply ensuring a bound on forces applied on sensitive tissue.

Mixed-etiology leg ulcers in a patient on long-term glucocorticoid therapy.

Chronic leg ulceration is a frequent condition in elderly patients. Chronic wounds that are nonresponsive to 3-month therapy affect approximately 6.5 million people in the United States with a prevalence of 1% and costs estimated at 25 billion dollars per year.

Intelligent magnetic manipulation for gastrointestinal ultrasound.

Diagnostic endoscopy in the gastrointestinal tract has remained largely unchanged for decades and is limited to the visualization of the tissue surface, the collection of biopsy samples for diagnoses, and minor interventions such as clipping or tissue removal. In this work, we present the autonomous servoing of a magnetic capsule robot for , subsurface diagnostics of microanatomy. We investigated and showed the feasibility of closed-loop magnetic control using digitized microultrasound (μUS) feedback; this is crucial for obtaining robust imaging in an unknown and unconstrained environment.