Abstract
Background
Rapid diagnosis and proper management of intracerebral hemorrhage (ICH) play a crucial role in the outcome. Prediction of the outcome with a high degree of accuracy based on admission data including imaging information can potentially influence clinical decision-making practice.
Methods
We conducted a retrospective multicenter study of consecutive ICH patients admitted between 2012–2017. Medical history, admission data, and initial head computed tomography (CT) scan were collected. CT scans were semiautomatically segmented for hematoma volume, hematoma density histograms, and sphericity index (SI). Discharge unfavorable outcomes were defined as death or severe disability (modified Rankin Scores 4–6). We compared (1) hematoma volume alone; (2) multiparameter imaging data including hematoma volume, location, density heterogeneity, SI, and midline shift; and (3) multiparameter imaging data with clinical information available on admission for ICH outcome prediction. Multivariate analysis and predictive modeling were used to determine the significance of hematoma characteristics on the outcome.
Results
We included 430 subjects in this analysis. Models using automated hematoma segmentation showed incremental predictive accuracies for in-hospital mortality using hematoma volume only: area under the curve (AUC): 0.85 [0.76–0.93], multiparameter imaging data (hematoma volume, location, CT density, SI, and midline shift): AUC: 0.91 [0.86–0.97], and multiparameter imaging data plus clinical information on admission (Glasgow Coma Scale (GCS) score and age): AUC: 0.94 [0.89–0.99]. Similarly, severe disability predictive accuracy varied from AUC: 0.84 [0.76–0.93] for volume-only model to AUC: 0.88 [0.80–0.95] for imaging data models and AUC: 0.92 [0.86–0.98] for imaging plus clinical predictors.
Conclusions
Multiparameter models combining imaging and admission clinical data show high accuracy for predicting discharge unfavorable outcome after ICH.
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PS designed and performed statistical analysis and contributed to manuscript preparation and subsequent revisions. MDN contributed to the study design, manuscript preparation, and subsequent revisions. MJ contributed to data collection and manuscript preparation. AJ contributed to data collection and manuscript preparation. WZ contributed to manuscript preparation. SAM contributed to manuscript preparation. AP contributed to statistical analysis design and manuscript preparation. EMB contributed to manuscript preparation. RD contributed to manuscript preparation. AAD designed the study, interpreted the results, prepared the manuscript the subsequent revisions, and supervised the project.
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Dr. Salazar is an employee of Vital Images (Minnetonka, MN, USA).
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The Institutional Review Boards at Hennepin Healthcare System and Fairview Health Services in Minneapolis, Minnesota, approved the study. The data are reported based on the recommendations from STROBE (Strengthening The Reporting of OBservational Studies in Epidemiology). Informed consent is not required for this retrospective study.
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Salazar, P., Di Napoli, M., Jafari, M. et al. Exploration of Multiparameter Hematoma 3D Image Analysis for Predicting Outcome After Intracerebral Hemorrhage. Neurocrit Care 32, 539–549 (2020). https://doi.org/10.1007/s12028-019-00783-8
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DOI: https://doi.org/10.1007/s12028-019-00783-8