General Electric Company
Methods and apparatus to correct the measurement of water equivalent diameter in computed tomography when patients are miscentered

Abstract:

Methods, apparatus, systems and articles of manufacture to correct the measurement of water equivalent diameter in Computed Tomography (CT) imaging when patients are miscentered are disclosed. A disclosed example apparatus includes a patient size characteristic calculator to calculate a set of patient size characteristics for a set of axial slices along a height of the patient. The apparatus further includes a patient size characteristic corrector module to calculate a set of correction factors for the set of patient size characteristics and apply the set of correction factors to the set of patient size characteristics. The apparatus further includes a computation manager to utilize a set of corrected patient size characteristics for the set of axial slices along the height of the patient to perform a CT scan on the patient by modulating an X-ray current to control a radiation dose applied to the patient.