Diagnosis of intracranial calcification and hemorrhage in pediatric patients: Comparison of quantitative susceptibility mapping and phase images of susceptibility-weighted imaging

作者：Ciraci S; Gumus K^*; Doganay S; Dundar M S; Ozcora G D Kaya; Gorkem S B; Per H; Coskun A

来源：Diagnostic and Interventional Imaging, 2017, 98(10): 707-714.

DOI：10.1016/j.diii.2017.05.004

• Quantitative susceptibility mapping
• Susceptibility-weighted imaging
• Calcification
• Hemorrhage
• Brain

Purpose: To prospectively compare the diagnostic capabilities of quantitative susceptibility mapping (QSM) with those of phase images of susceptibility-weighted imaging (SWI) in the detection and differentiation of intracranial calcification and hemorrhage in pediatric patients.
Method: Sixteen pediatric patients (9 girls, 7 boys) with a mean age of 9.4 +/- 6.3 (SD) years (range, 6 days-15 years) were included. Fifty-nine calcifications and 31 hemorrhages were detected. Sensitivities and specificities of the two magnetic resonance (MR) imaging techniques were calculated and compared using McNemar test.
Results: QSM had a sensitivity of 84.7% and specificity of 100% for the detection of calcification. SWI phase images had a sensitivity of 49.1% and specificity of 100%. For the detection of hemorrhage, QSM had a sensitivity of 90.3% and a specificity of 98.3% whereas SWI phase images yielded a sensitivity of 64.5% and specificity of 96.6%. Overall, QSM displayed significantly better sensitivity than SWI phase images in identification of calcification and hemorrhage (P < 0.05).
Conclusion: QSM is more reliable than SWI phase images in the identification of intracranial calcification and hemorrhage in pediatric patients using MR imaging.

• 出版日期2017-10