The utility of susceptibility-weighted imaging to evaluate the extent of iron accumulation in the choroid plexus of patients with β-thalassaemia major

Clinical Radiology
Z I HasilogluS Albayram

Abstract

To assess iron accumulation in the choroid plexus of β-thalassaemia patients using fast spin echo (FSE) T2-weighted, gradient echo (GRE) T2*-weighted, susceptibility-weighted imaging (SWI) and compare the results. Eighteen patients with transfusion-dependent β-thalassaemia and the control group underwent magnetic resonance imaging (MRI) examinations. Signal intensities were separately evaluated using a "number of hypointensity in the choroid plexus" (NHICP) grading system on axial FSE T2-weighted, GRE T2*-weighted, and SWI images. The NHICP grading system scores were compared using the chi-squared test. Spearman's correlation analysis was used to explore relationships between the variables and NHICP grading system scores. The sensitivity of each technique was calculated: FSE T2-weighted imaging=0.17, GRE T2*-weighted imaging=0.48, and SWI=0.81. Three-sample test for equality of proportions showed that chi-squared=74.85, df=2, p<0.0001. All of the FSE T2-weighted, GRE T2*-weighted, and SWI images differed significantly in terms of their capacity to reveal iron accumulation in the choroid plexus. Of the three methods, SWI was the most sensitive. SWI is useful for revealing iron deposition in the brains of β-thalassaemia patients,...Continue Reading

Citations

Feb 28, 2019·Frontiers in Molecular Neuroscience·Violaine HubertMarlène Wiart
Mar 2, 2021·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Jun SunWei Xing
Jul 9, 2021·European Journal of Pediatrics·Mohsen Saleh ElalfyFatma Soliman Elsayed Ebeid

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