Role of Dynamic Contrast Enhanced MRI in Characterization of Breast Lesions
نویسندگان
چکیده
منابع مشابه
Dynamic NMR effects in breast cancer dynamic-contrast-enhanced MRI.
The passage of a vascular-injected paramagnetic contrast reagent (CR) bolus through a region-of-interest affects tissue (1)H(2)O relaxation and thus MR image intensity. For longitudinal relaxation [R(1) identical with (T(1))(-1)], the CR must have transient molecular interactions with water. Because the CR and water molecules are never uniformly distributed in the histological-scale tissue comp...
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CID map (similar results obtained for CIR and inclination maps) obtainable in as little as one minute following CA injection, compared to (b) T2w and (c) SSFP imaging that visualize a more homogeneous lesion. (d) Delayed enhancement imaging acquired many minutes post-contrast injection demonstrate similar lesion core and border regions after subtraction with pre-contrast data. a b c d VISUALIZA...
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OBJECTIVE To investigate the added diagnostic value of 3.0 Tesla breast MRI over conventional breast imaging in the diagnosis of in situ and invasive breast cancer and to explore the role of routine versus expert reading. MATERIALS AND METHODS We evaluated MRI scans of patients with nonpalpable BI-RADS 3-5 lesions who underwent dynamic contrast-enhanced 3.0 Tesla breast MRI. Initially, MRI sc...
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Introduction Dynamic contrast enhanced (DCE) MRI is being increasingly used to characterize abnormalities of the breast. Features of the contrast uptake and washout demonstrate high negative predictive value for identifying and characterizing breast lesions. We performed compartment modeling using the Tofts’ model [1]. Mean vascular permeability over tumor volume has been generally used to char...
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the present study sought to investigate the role of dynamic assessment (da) in improvement of iranian efl writing performance at different language proficiency levels. to this end, after conducting the quick placement test, 60 iranian efl learners were assigned to two groups with different language proficiency levels. in both groups each participant wrote two compositions, one before and one af...
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ژورنال
عنوان ژورنال: Nepalese Journal of Radiology
سال: 2014
ISSN: 2091-1378,2091-136X
DOI: 10.3126/njr.v4i1.11366