Innovation: "We are able to save many lives using this tiny, portable machine"

Ultrasound is often associated with pregnancy, but did you know that it has many vital uses in medicine? South Sudanese doctor Achai blogs about how training in the use of new portable ultrasound machines – which have traditionally been bulky and expensive – is helping Médecins Sans Frontières / Doctors Without Borders (MSF) save lives in humanitarian crises.