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AWT IMAGE

AWT IMAGE

:: Volume 22, Issue 2 (4-2024) ::
Int J Radiat Res 2024, 22(2): 389-395 Back to browse issues page
Accuracy of diffusion-weighted imaging in differentiation between medulloblastoma and ependymoma tumors
K.M. Abushab , S. Abu-Laila , M. Tabash , K. Quffa , A. Shaltout , Y.S. Alajerami , H.H. Mansour , H. Beituni
Medical Imaging Department, Applied Medical Sciences Faculty, Al Azhar University-Gaza, Palestinian Territory , yasser_ajr@hotmail.com
Abstract:   (122 Views)
Background: To investigate the accuracy of diffusion-weighted imaging (DWI) in the differentiation between medulloblastoma and ependymoma tumors. Materials and Methods: A retrospectively analytical study was used. Eighty-nine patients with medulloblastoma and ependymoma tumors were included, as proved by the histopathological findings (2016–2019), and their ages ranged from 1 month to 15 years old. All DWI data were transferred through RadiAnt Dicom viewer and apparent diffusion coefficient (ADC) value calculations. Statistical analyses were conducted utilizing statistical software (MedCalc, version 19.0.4).  Results: The value of ADCmean was the significant ADC value that distinguished medulloblastoma from ependymoma. The value of ADCmean was inversely proportional to tumor grades. The ADCmean value at the ependymoma tumor was 1.141±0.293 mm2/s, whereas the ADCmean value at medulloblastoma tumor was 0.661± 0.123 mm2/s. Spearman’s correlation shows a significant negative correlation, and ADCmean (r = -0.72, P-value = 0.0001). The ADCmean has confirmed the highest diagnostic accuracy with an area under the curve (AUC) of 0.984 in cases in reference to histopathological findings as a gold standard and detects medulloblastomas and ependymomas tumors with sensitivity (96.92%), specificity (95.83%), PPV (98.4%,), NPV (92%) and accuracy (92.7%). There is a high level of agreement between the results of ADC value and histopathological findings, which is excellent agreement between the two tests as Kappa =0.915. ADCmean could serve as a base to distinguish medulloblastoma from ependymoma tumors with high accuracy. Conclusion: Using ADC map value to diagnose pediatric tumors could provide reliable and objective evidence for pre-operative differentiation.
Keywords: Diffusion-weighted imaging, medulloblastoma, ependymoma.
Full-Text [PDF 609 kb]   (29 Downloads)    
Type of Study: Original Research | Subject: Radiation Biology
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Abushab K, Abu-Laila S, Tabash M, Quffa K, Shaltout A, Alajerami Y, et al . Accuracy of diffusion-weighted imaging in differentiation between medulloblastoma and ependymoma tumors. Int J Radiat Res 2024; 22 (2) :389-395
URL: http://ijrr.com/article-1-5447-en.html


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Volume 22, Issue 2 (4-2024) Back to browse issues page
International Journal of Radiation Research
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