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

摘要

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.