| Imaging Q1 | In infants and children with mild to moderate head injury presenting i) within 24 hours, or ii) between 24 and 72 hours, of injury what are the clinical criteria and/or clinical decision rule(s) that best determine who needs/ does not need a cranial CT? |
| Imaging Q2 | In infants and children with a ventricular shunt and mild to moderate head injury presenting within 72 hours of injury, which should undergo i) a cranial CT and/or ii) a shunt series and/or iii) a period of observation? |
| Imaging Q3 | In infants and children on anticoagulant or antiplatelet therapy, or with a known bleeding disorder and mild to moderate head injury presenting within 72 hours of injury, which should undergo a i) cranial CT and/or ii) a period of observation? |
| Imaging Q4 | In infants and children with a neurodevelopmental disorder and mild to moderate head injury presenting within 72 hours of injury, which should undergo a i) cranial CT and/or ii) a period of observation? |
| Imaging Q5 | In children with mild to moderate head injury who are drug or alcohol intoxicated presenting within 72 hours of injury, which should undergo a i) cranial CT and/or ii) a period of observation? |
| Imaging Q6 (a) | In infants and children with mild to moderate head injury presenting within 72 hours of injury who does/does not require an initial cranial CT, what are the clinical criteria and/or clinical decision rule(s) that best determine who needs/does not need a period of observation? |
| Imaging Q6 (b) | In infants and children with mild to moderate head injury presenting within 72 hours of injury who do not receive an initial cranial CT, but received a period of observation, what is the optimal frequency of reassessment and duration of observation? |
| Imaging Q7 (a) | In infants and children with mild to moderate head injury presenting within 72 hours of injury and a negative initial cranial CT for radiologically proven traumatic intracranial lesion, what are the clinical criteria and/or clinical decision rule(s) that best determine who needs/does not need a period of observation? |
| Imaging Q7 (b) | In infants and children with mild to moderate head injury presenting within 72 hours of injury and a negative initial cranial CT for a radiologically proven traumatic intracranial lesion, who received a period of observation, what is the optimal frequency of reassessment and duration of observation? |
| Imaging Q8 | In infants and children with mild to moderate head injury and a negative initial cranial CT or MRI for an intracranial injury with persistent symptoms, who should undergo repeat neuroimaging? |
| Imaging Q9 | In infants and children with mild to moderate head injury, presenting within 72 hours of injury with suspected NAI, i) who should undergo cranial imaging and ii) which modality should be used for initial imaging? |
| Imaging Q10 | In infants and children with mild to moderate head injury presenting within 72 hours of injury, what are the clinical criteria and/or clinical decision rule(s) that best determine who should undergo a skull x-ray prior to, or in lieu of a cranial CT? |
| Imaging Q11 | In infants and children with mild to moderate head injury presenting within 72 hours of injury, what are the clinical criteria and/or clinical decision rule(s) that best determine who should undergo ultrasound of the skull in the ED prior to, or in lieu of, a cranial CT? |
| Imaging Q12 | In infants with mild to moderate head injury presenting within 72 hours of injury, what are the clinical criteria and/or clinical decision rule(s) that best determine who should undergo a transfontanelle cerebral ultrasound in the ED prior to, or in lieu of a cranial CT? |
| Imaging Q13 | In infants and children with mild to moderate head injury presenting within 72 hours of injury, what are the clinical criteria and/or clinical decision rule(s) that best determine who should undergo MRI in lieu of a cranial CT? |
| Imaging Q14 | In infants and children with mild to moderate head injury presenting within 72 hours of injury, what are the clinical criteria and/or clinical decision rule(s) that best determine who should undergo biomarker testing prior to a cranial CT? |
| Imaging Q15 | In infants and children with mild to moderate head injury presenting within 72 hours of injury who undergo a cranial CT scan, what are the i) appropriate CT protocols/techniques and/or ii) to what extent should the cervical spine be included in the imaging? |
