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 embolus: A blood clot or foreign material that has been carried through the blood into the pulmonary artery or one of its branches, plugging the vessel.
embolism-occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle).