Intracranial T1 Weighted Hyperintense Lesions
نویسندگان
چکیده
منابع مشابه
Characterization of T1 hyperintense renal lesions with diffusion-weighted imaging: preliminary experience
Introduction T1 hyperintense renal lesions may represent hemorrhagic/proteinaceous cysts or neoplasms. The visual assessment of enhancement of these lesions can be difficult, and signal intensity measurements before/after contrast injection and qualitative analysis of enhancement with image subtraction can be used in that purpose. We wanted to determine the accuracy of apparent diffusion coeffi...
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PURPOSE To compare the performance of apparent diffusion coefficient (ADC) measurement obtained with diffusion-weighted (DW) magnetic resonance (MR) imaging in the characterization of non-fat-containing T1 hyperintense renal lesions with that of contrast material-enhanced MR imaging, with histopathologic analysis and follow-up imaging as the reference standards. MATERIALS AND METHODS Institut...
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Various substances, including methemoglobin, melanin, lipid, protein, calcium, iron, copper, and manganese, are responsible for the intrinsically high signal intensity observed in intracranial lesions at T1-weighted magnetic resonance (MR) imaging. Many of these substances have physical properties that lead to other specific imaging features as well. For example, lipid-containing lesions freque...
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In the article we present pathological intracranial substances and lesions, which produce high signal intensity on T1-weighted MR images. Six groups of substances are discussed: 1. Gadolinium - based contrast agents, 2.hemoglobin degradation products (intra- and extra-cellular methemoglobin), 3. lipid-containing lesions (lipoma, dermoid cyst, implanted fatty materials, laminar cortical necrosis...
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ژورنال
عنوان ژورنال: MAMC Journal of Medical Sciences
سال: 2017
ISSN: 2394-7438
DOI: 10.4103/mamcjms.mamcjms_34_17