In single photon emission computed tomography (SPECT), accurately modeling of the physics of SPECT imaging process is essential to degrading factor compensation and image quality enhancement.

Objective: to investigate the diagnostic value of single photon emission computed tomography (SPECT) in early Daunorubicin-induced cardiotoxicity in children with acute lymphoblastic leukemia.

Objective to explore the value of single photon emission computed tomography (SPECT) cerebral blood flow in detecting the cognitive ability of patients with transient ischemic attack (TIA).