This fast, non-invasive test sends currents of varying frequencies through the body. These currents primarily pass through the fluid in the body, not the tissue. Water is found both inside the cells and outside the cells. At lower frequencies, the current passes through the fluid outside the cells and does not penetrate the cell membrane. And at higher frequencies the current passes directly through the cell membranes. The computer then uses mathematical modeling to calculate the ratio of fluid outside of the cells and the overall water content of the body and limbs. Because the extra fluid in lymphedema is primarily extracellular fluid, these measurements give an excellent indication of the severity of the fluid component of lymphedema.
Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.
Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.