EFFECTIVENESS OF DIFFUSION WEIGHTED MRI DERIVED METRICS IN DIFFERENTIATION OF PEDIATRIC POSTERIOR FOSSA TUMORS
نویسندگان
چکیده
منابع مشابه
Metrics and textural features of MRI diffusion to improve classification of pediatric posterior fossa tumors.
BACKGROUND AND PURPOSE Qualitative radiologic MR imaging review affords limited differentiation among types of pediatric posterior fossa brain tumors and cannot detect histologic or molecular subtypes, which could help to stratify treatment. This study aimed to improve current posterior fossa discrimination of histologic tumor type by using support vector machine classifiers on quantitative MR ...
متن کاملValue and limitations of diffusion-weighted imaging in grading and diagnosis of pediatric posterior fossa tumors.
DWI reportedly accurately differentiates pediatric posterior fossa tumors, but anecdotal experience suggests limitations. In 3 years, medulloblastoma and JPA were differentiated by DWI alone in 23/26 cases (88%). Ependymoma (n = 5) could not be reliably differentiated from medulloblastoma or JPA. A trend toward increased diffusion restriction in higher grade tumors (1/14 grade I, 7%; 9/12 grade...
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J.L. Jaremko L.B.O. Jans L.T. Coleman M.R. Ditchfield SUMMARY: DWI reportedly accurately differentiates pediatric posterior fossa tumors, but anecdotal experience suggests limitations. In 3 years, medulloblastoma and JPA were differentiated by DWI alone in 23/26 cases (88%). Ependymoma (n 5) could not be reliably differentiated from medulloblastoma or JPA. A trend toward increased diffusion res...
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Diffusion-weighted imaging (DWI)-based tractography has gained increasing popularity as a method for detailed visualization of white matter (WM) tracts. Different imaging techniques, and more novel, advanced imaging methods provide significant WM structural detail. While there has been greater focus on improving tract visualization for larger WM pathways, the relative value of each method for c...
متن کاملThe Clinical Challenges of Pediatric Posterior Fossa Tumors
Pediatric brain tumors occur mainly in the posterior fossa. Clinicians encounter numerous difficulties and challenges in establishing the diagnosis. Symptomatology varies according to the location of tumor, its rate of progression, and the age of the child. Most of them are usually nonspecific and misinterpreted as common benign childhood disorders. Consequently, a significant delay arises betw...
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ژورنال
عنوان ژورنال: Ain Shams Medical Journal
سال: 2019
ISSN: 2735-3540
DOI: 10.21608/asmj.2019.111141