The radar chart is a chart and/or plot that consists of a sequence of equi-angular spokes, called radii, with each spoke representing one of the variables.
pulmonary embolism-blockage of the pulmonary artery by foreign matter or by a blood clot. embolus-an abnormal particle (e.g. an air bubble or part of a clot) circulating in the blood. Translations.
Pulmonary embolism - Causes. Causes of pulmonary embolism. A pulmonary embolism occurs when the artery that carries blood to the lungs becomes blocked. The blockage is usually a blood clot, but it can also be a fat droplet, an air bubble or amniotic fluid (fluid that surrounds unborn babies).