Prediction of Activity Prognosis of Putaminal Hemorrhage at the Time of Discharge from a Convalescent Ward Using CT Images of the Head

Abstract

[Purpose] This study aimed to investigate whether a prediction formula derived using head CT images could predict the activity prognosis after putaminal hemorrhage. [Participants and Methods] Seventy-two patients with putaminal hemorrhage who were admitted to a convalescent ward were randomly divided into 62 patients in the prediction formula group and 10 patients in the external validation group. Prediction equations for FIM motor and cognitive items at discharge were developed using six variables: age, sex, number of days from onset of hemorrhage to admission to the ward, and the maximum diameters of the hematoma in three dimensions measured on CT images. The external validity of the prediction equations was also examined. [Results] Age, anteroposterior maximum diameter, and lateral maximum diameter were used to create prediction equations for the motor items, and age and anteroposterior maximum diameter were used to create prediction equations for the cognitive items. The correlation coefficients of the predicted and measured values were calculated for both exercise and cognition. [Conclusion] The prediction equations which we developed may be used to predict the activity prognosis of putaminal hemorrhage.