TABLE 4

Proposed CT Protocol for SPECT/CT in Children

Relationship between patient average diameter* and weight (mm→kg)Patient weight (kg)Voltage (kV)Current (mA)
110→4<101201
150→1110–191202
200→2020–291401.5
250→3530–401402
300→70>401402.5
  • * Arithmetic mean of diameters of thorax and abdomen.

  • For adolescents, diameter→weight relation was extrapolated because of lack of data in handbook (6).