Imaging technologies have the potential to supplement conventional diagnosis and follow up of ulcers, by providing detailed information regarding skin components imperceptible to visual inspection. Clinical investigations have shown that several factors including reduced oxygen delivery and disturbed metabolism can impair the wound healing process, for that reason is desirable to asses the distribution of tissue oxygenation around a lesion. In this sense, this work describes the development and preliminary tests of a LED-based multispectral imaging system to measure changes in the oxygen saturation.