Is a Two-Film Skull X-ray Series as Sensitive as a Four-Film Series in the Diagnosis of Skull Fractures in Paediatric Patients (4vs2)

Is a Two-Film Skull X-ray Series as Sensitive as a Four-Film Series in the Diagnosis of Skull Fractures in Paediatric Patients

Is a Two-Film Skull X-ray Series as Sensitive as a Four-Film Series in the Diagnosis of Skull Fractures in Paediatric Patients With Minor Head Trauma?

Minor head injuries are a common presenting complaint in the pediatric emergency department. Skull x-rays are a useful tool in the evaluation of paediatric patients with a history of minor head trauma. However, there exists ongoing controversy regarding the ideal number of views that should be obtained in a skull series. This study aims to determine if there is a significant difference in the diagnostic accuracy of skull x-rays in the diagnosis of fracture in paediatric minor head trauma patients when a 2-film series as opposed to a 4-film series is provided to participating pediatric emergency physicians.

Minor head injuries are a common presenting complaint in the pediatric emergency department. Skull x-rays are a useful tool in the evaluation of paediatric patients with a history of minor head trauma. However, there exists ongoing controversy regarding the ideal number of views that should be obtained in a skull series. This study aims to determine if there is a significant difference in the diagnostic accuracy of skull x-rays in the diagnosis of fracture in paediatric minor head trauma patients when a 2-film series as opposed to a 4-film series is provided to participating pediatric emergency physicians. This will be a prospective, crossover experimental study evaluating the equivalency in sensitivity and specificity of a 2-film series versus a 4-film series in the diagnosis of skull fracture associated with minor head injuries in children. The study will involve 10 pediatric emergency physicians who will evaluate two modules of 100 series of radiography. In order to do so, he or she will be given two work modules. Each module will contain the randomized and anonymous x-rays of the same 50 cases and 50 controls mounted on power point slides. Among the 50 cases, the evaluation sequence will be randomized such that 25 cases will be evaluated with the 2-film series in the first module and the 4-film series in the second module while the other 25 cases will evaluated in the reverse order. The same procedure will be used for randomizing the evaluation sequence of the 50 controls. The primary outcomes will be the overall sensitivity and specificity of pediatric emergency medicine physicians for the detection of skull fractures using two evaluation methods: one in which they are presented with a skull series that has 2 views and another in which they are presented with a standard 4-view series.

The 4-film series will include the following views: anterior-posterior; one lateral; Waters, and Townes views.

The 4-film series will include the following views: anterior-posterior; one lateral; Waters, and Townes views.

The sensitivity is a simple proportion and will be measured by dividing the number of cases that were classified as positive for fracture by the total number of cases.

The specificity will be measured by dividing the number of x-rays of controls in which x-rays were read as negative by the total number of x-rays of controls.