The fTT biomarker is a deformability marker; it provides the fraction of deformable red blood cells in a heterogeneous population.
Video imaging of individual red blood cell motion in shear flow.
The individual deformability of red blood cells plays a key role in ensuring their smooth transport and survival in the bloodstream. Pathological alterations in the deformability of red blood cells are associated with many hereditary, chronic, infectious and vascular diseases.