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21 mar 2023 · In this study, we focused on a common and expensive radiology service: magnetic resonance imaging (MRI) of brain before and after contrast (Current Procedural Terminology code 70553; hereafter, brain MRI).
Purpose: Detailed evaluation and cost analysis of a cranial contrast-enhanced MRI (c-ceMRI) in outpatients, inpatients, patients in an intensive care unit and children under anesthesia. Materials and methods: Based on a detailed process-oriented model, we calculated the cost of a cranial MRI for the four situations mentioned above.
28 sie 2021 · The aim was to investigate the cost-effectiveness of supplemental short-protocol brain MRI after negative non-contrast CT in neurological emergency patients with mild and unspecific clinical symptoms.
14 kwi 2020 · Identification and classification of brain tumor MRI images with feature extraction using DWT and probabilistic neural network.
21 lis 2015 · This study proposes a hierarchical correlation histogram analysis based on the grayscale distribution degree of pixel intensity by constructing a correlation histogram, that can improves the adaptive contrast enhancement for specific objects.
2 sty 2024 · An MRI without contrast, also known as a non-contrast MRI, is typically used to visualize the anatomy of the brain and detect any structural abnormalities. This type of scan is useful in identifying tumors, strokes, and other conditions that cause changes in the size or shape of brain tissue.
2 paź 2020 · In order to maintain the balance of contrast and illumination and the high perceptual quality of the images, we propose an MRI image enhancement framework based on visual-attention by contrast adjustment which is inspired by the theory of component attenuation and image fusion method.
