Electronic Radiology Laboratory (ERL)

Dual Energy CT for Proton Therapy Planning for Cancer

Dual energy computed tomography (CT) makes two independent measurements of attenuation in the body using x-ray sources that emit radiation at different energies. Using theories from physics, such as the modified Torikoshi model, these two measurements can be transformed into other pairs of independent quantities, such as the effective atomic number and electron density of tissue within the patient. This latter characterization of tissue is useful to Radiation Oncologists when creating treatment plans for proton therapy for cancer. This work is supported by the National Institutes of Health.

Colloaborators: Joseph O'Sullivan  Jeffrey Williamson