To follow an heart transplantation, EBCT is more precise than ultrason
ographie and scintigraphy to calculate a stroke volume. In lung transp
lantation, it is important before surgery to know the value of right v
entricule stroke volume in order to choice the surgical protocol. Afte
r lung transplantation SFE helps to follow the patient to look after c
omplications, to drain a collection or to guide a biopsy. SFE contribu
tion is discussed in rejection, infectious diseases, detection of immu
ne-induced carcinomas, in bronchiolitis obliterans and recurrence of t
he primitive disease.