Dynamic contrast enhanced MRI
Value of dynamic contrast-enhanced MRI for evaluating the cell proliferation, angiogenesis and lymphangiogenesis in lung cancer
... underwent dynamic contrast-enhanced MRI examination before operation, the trocarvia was indwelt via the right cubital vein puncture, Siemens nuclear magnetic resonance spectrometer was adopted ...
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Comparison of linear and nonlinear implementation of the compartmental tissue uptake model for dynamic contrast-enhanced MRI.
... Dynamic contrast-enhanced MRI (DCE-MRI) is a power- ful tool to evaluate tissue perfusion, permeability, and ...gadolinium-based contrast agent is intro- duced into the patient’s ...
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Comparison between Dynamic Contrast-Enhanced MRI and Dynamic Susceptibility Contrast MRI in Glioma Grading
... 70 dynamic time points for each slice with temporal spacing of approximately ...70 dynamic measurements from DCE-MRI technique were ...30 dynamic acquisitions in 12 patients and 70 ...
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The value of dynamic contrast-enhanced MRI in differentiating triple-negative breast cancer from other subtypes
... 15]. MRI shows malignant characteristics that might not be recognized using mammography or ultrasound; conse- quently, it is considered of higher precision in detecting the local extent of disease in recently ...
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Differentiating Atypical Hemangiomas and Metastatic Vertebral Lesions: The Role of T1 Weighted Dynamic Contrast Enhanced MRI
... rise (slope) and higher peak signal intensity, followed by a faster washout phase. Most atypical hemangiomas have a minimal and delayed enhancement and fall within a narrow range, except for the 4 curves highlighted in ...
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Measurement of pharmacokinetic parameters in histologically graded invasive breast tumours using dynamic contrast enhanced MRI
... Whilst it is not possible to trace all possible sources of discrepancy between the results presented in this study and other clinical studies where the relationship between tumour grade and black-box quantifiers of ...
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The Utility of Diffusion Weighted Imaging and Dynamic Contrast Enhanced MRI Techniques in Differentiation Between Benign and Malignant Uterine Masses
... functional MRI technique, depends on Brownian motion of water molecules, with the signal intensity influenced by factors like number of cells, viscosity of intracellular and extracellular spaces, and tortuosity of ...
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Convolutional neural networks for direct inference of pharmacokinetic parameters: Application to stroke dynamic contrast-enhanced MRI
... One of the key limitations of TK modeling methods is that they are simply based on the fitting of voxelwise PK parameters to contrast agent concentration-time curves (9). The fitting is usually performed using a ...
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Time-resolved angiography with stochastic trajectories for dynamic contrast-enhanced MRI in head and neck cancer: Are pharmacokinetic parameters affected?
... for dynamic contrast- enhanced (DCE) MRI, where a high temporal resolution is required to appropriately characterize a progressive signal intensity change after injecting gadolinium-based ...
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Preoperative Prognostic Value of Dynamic Contrast Enhanced MRI–Derived Contrast Transfer Coefficient and Plasma Volume in Patients with Cerebral Gliomas
... While dynamic susceptibility contrast-derived rCBV has been shown to predict survival in patients with gliomas in single-center studies, the need for normalization of semiquantitative values with a manually ...
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The added diagnostic value of dynamic contrast-enhanced MRI at 3.0 T in nonpalpable breast lesions
... This study was conducted using data from the MONET study (MR mammography Of Nonpalpable BrEast Tumors), a multi- center randomized controlled trial (NCT00302120) designed to assess the impact of dynamic ...
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Dynamic contrast-enhanced MRI coupled with a subtraction technique is useful for treatment response evaluation of malignant melanoma hepatic metastasis
... characteristic MRI features, such as precontrast T1 hyperintensity, are highly specific features that justify the imaging ...our MRI-based approach could have caused selection bias by unintentionally ...
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Automated Processing of Dynamic Contrast Enhanced MRI: Correlation of Advanced Pharmacokinetic Metrics with Tumor Grade in Pediatric Brain Tumors
... MATERIALS AND METHODS: Dynamic contrast-enhanced MR imaging data from 38 patients were analyzed by using commercially available software. Subjects were categorized into 2 groups based on pathologic ...
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Evaluation of Microvascular Permeability with Dynamic Contrast Enhanced MRI for the Differentiation of Primary CNS Lymphoma and Glioblastoma: Radiologic Pathologic Correlation
... Images were acquired in the routine clinical work-up by using a 3T MR imaging system (Magnetom Verio/Trio Tim; Siemens, Erlangen, Germany) with a 12-channel head-matrix coil. Axial DCE-MR imaging was performed with a 3D ...
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Diagnostic Accuracy of T1 Weighted Dynamic Contrast Enhanced–MRI and DWI ADC for Differentiation of Glioblastoma and Primary CNS Lymphoma
... Two experienced operators (1 radiology fellow with 3 years and 1 medical student with 1 year of experience) manually outlined a VOI around the enhancing lesion on contrast-enhanced T1WI and the peritumoral ...
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Comparison of semi quantitative and quantitative dynamic contrast enhanced MRI evaluations of vertebral marrow perfusion in a rat osteoporosis model
... The rats were sacrificed with an overdose of 4% chloral hydrate (20 ml/kg) via an intraperitoneal injection after MRI examination. The L5 vertebrae were dissected, stored in 4% paraformaldehyde, and preserved at 4 ...
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Quantifying Intracranial Aneurysm Wall Permeability for Risk Assessment Using Dynamic Contrast Enhanced MRI: A Pilot Study
... a contrast-enhanced MR imaging examina- tion, including DCE–MR imaging for kinetic modeling of IA wall permeability to contrast ...pregnancy, contrast allergy, renal insufficiency, presence of ...
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T1 Weighted Dynamic Contrast Enhanced MRI as a Noninvasive Biomarker of Epidermal Growth Factor Receptor vIII Status
... had dynamic contrast-enhanced MR imaging before surgery were ...on contrast T1-weighted images and then were transferred onto coregistered dynamic contrast-enhanced MR ...
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Diffusion weighted and dynamic contrast enhanced MRI of pancreatic adenocarcinoma xenografts: associations with tumor differentiation and collagen content
... The study reported here has significant clinical impli- cations. The potential of DW-MRI and DCE-MRI as methods for distinguishing between well and poorly dif- ferentiated PDACs has been addressed in ...
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