The Georgia Center for Medical Robotics (GCMR) brings together people with expertise in several areas of medicine as well as technology development from the nano-scale to macro-scale. GCMR is highly interdisciplinary, comprised of people from the Georgia Institute of Technology, Emory University, Children’s Healthcare of Atlanta (CHOA), and Morehouse School of Medicine. One of its unique features is that it addresses the needs of both adult and pediatric populations.
While placement of cardiac devices (e.g. stents, septal occluders) via minimally-invasive procedures has reduced both patient recovery times and early complication rates relative to open procedures, the rates of repeat intervention and long-term mortality remain relatively high. For example, ~10% of patients receiving drug-eluting stents require at least one revascularization procedure. Minimally-invasive real-time 3D imaging may reduce these rates by enabling direct visualization of stent sizing, expansion, and placement.
Approximately one third of pancreatic tumors are misdiagnosed, delaying diagnosis by an average of 3 months, during which tumor size may increase by 40-50%. Effective imaging via functional endoscopic ultrasound imaging may allow us to 1) guide biopsy in order to correctly diagnose earlier-stage tumors, and 2) determine in which patients a true “R0” surgical resection (i.e. “clean” margins) is possible.
Peripheral artery disease (PAD) is one of the most common causes of cardiovascular deaths in the world, with an estimated 202 million people suffering from it in 2010. The contralateral retrograde femoral approach involved in operating during PAD procedures requires the physician to navigate a guidewire through a tortuous pathway of arteries manually. In order to achieve this, we have designed a robotic guidewire with two orthogonally oriented asymmetric notch joints, that offer 2 degrees-of-freedom (DoFs) to the tip of the guidewire.
Each year, around 80% of 795,000 stroke survivors suffer from loss of functionality in their upper extremities. We would like to evaluate a novel tongue operated rehabilitation system for upper limb function recovery. This project is based on the studies that have shown accelerated progress in rehabilitation when limb movements are initiated by the patient and the hypothesis that the brain plasticity allows unharmed parts of the brain to adopt the functionality of the affected parts of the brain through robotic rehabilitation exercise.
Motion planning and trajectory generation problems are at the at the core of all autonomous and robotic systems. Although – at least in theory – such problems can be solved using optimal control or dynamic programming, the computational complexity for realizing these solutions is still prohibitive for many real-life problems, especially for high-dimensional systems. Recently, randomized algorithms have been proposed, which promise to remedy the “curse of dimensionality” associated with more traditional, deterministic methods.
The mechanism of phantom pain is complex and multi-tiered. This investigative team has experience specifically with clinical and structured investigative attenuation of nerve related symptoms through cryoablation in the setting of complex and multi-tiered etiological theory, including phantom pain in amputees.
The International Association for the Study of Pain defines post-mastectomy pain syndrome (PMPS) as persistent or chronic pain following mastectomy or lumpectomy that affects the anterior thorax, axilla, and/or medial upper arm – and the syndrome is reported affect 30-80% of women who undergo breast surgery. There is no specific therapy for this disorder, and patients report consistent levels of pain over time despite medication, physical therapy, spinal injections, psychological intervention, and/or acupuncture.
Currently 1/3 of the world and 2/3 of the US population are overweight. Historical strategies for weight loss have consistently resulted in failure rates up to 95%. Recent research in the fields of obesity medicine and bariatrics have elucidated complex survival based mechanisms responsible for hunger and difficulty managing calorie restriction. Part of this system exists as a hunger hormone signaling pathway between the stomach and the brain mediated by cells in the stomach that produce ghrelin.
Currently 1/3 of the world and 2/3 of the US population are overweight. Historical strategies for weight loss have consistently resulted in failure rates up to 95%. Recent research in the fields of obesity medicine and bariatrics have elucidated complex survival based mechanisms responsible for hunger and difficulty managing calorie restriction. Part of this system exists as a hunger hormone neural signaling pathway between the stomach and the brain mediated by the vagus nerve. Surgical transection of the vagus nerve has shown to decrease hunger and lead to weight loss.