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Updates in Brain Imaging
Neuroradiology has seen many advances in the past few years, placing the radiologist in a crucial role. Large trials have demonstrated the efficacy of thrombectomy for large vessel occlusions in stroke, emphasizing the importance of triaging patients for intervention. Genomics has become central to the classification of brain neoplasms, culminating in the 2016 World Health Organization classification of brain tumors. Advanced imaging techniques, such as functional MR imaging, diffusion tensor imaging, perfusion, and MR spectroscopy, have added value in tumor diagnosis, surgical planning, and surveillance.
Source: Radiologic Clinics of North America - August 25, 2019 Category: Radiology Authors: Jacqueline A. Bello, Shira E. Slasky Tags: Preface Source Type: research

Image-based screening.
Abstract Screening is a special issue in medical questions concerning disease prevention. Preconditions for screening are clearly defined by the World Health Organization. High prevalence, effectiveness of therapy, availability of accepted test procedure and consensus concerning the economic concerns are necessary for successful implementation of a screening program. Preventive diagnostic studies can only be understood if one is familiar with the statistical terms sensitivity, specificity, prevalence, incidence and bias (especially overdiagnosis and lead time bias). Aspects of radiation protection are especially...
Source: Der Radiologe - December 14, 2018 Category: Radiology Authors: Layer G Tags: Radiologe Source Type: research

Worldwide Analysis of Radiology Access and Education for Stroke Care: View From Abroad From 14 Countries
The World Health Organization reports that stroke is among the leading causes of death in noncommunicable diseases worldwide despite advances in acute stroke care [1]. Early interventions in cerebrovascular accidents can prevent mortality and minimize debilitating effects of stroke. There have been major recent advancements in stroke care to intervene more quickly and effectively. We are entering a new era of stroke imaging-based treatment for late acute ischemic stroke. Recent neurointerventional trials, such as DAWN and DEFUSE 3, have transformed the way clinicians provide acute stroke care in the United States and provi...
Source: Journal of the American College of Radiology : JACR - September 6, 2018 Category: Radiology Authors: Jesus Uribe, Simon Ammanuel, Bhavya Rehani Tags: A View From Abroad Source Type: research

Posterior Fossa Tumors in  Adult Patients
This article reviews tumors of the cerebellum, brainstem, and fourth ventricle that are seen in adult patients, following categories from the 2007 World Health Organization classification of central nervous system tumors.
Source: Neuroimaging Clinics of North America - September 1, 2016 Category: Radiology Source Type: research

Brain early infarct detection using gamma correction extreme ‐level eliminating with weighting distribution
SUMMARY According to the statistic from World Health Organization (WHO), stroke is one of the major causes of death globally. Computed tomography (CT) scan is one of the main medical diagnosis system used for diagnosis of ischemic stroke. CT scan provides brain images in Digital Imaging and Communication in Medicine (DICOM) format. The presentation of CT brain images is mainly relied on the window setting (window center and window width), which converts an image from DICOM format into normal grayscale format. Nevertheless, the ordinary window parameter could not deliver a proper contrast on CT brain images for ischemic str...
Source: Scanning - June 14, 2016 Category: Radiology Authors: V. Teh, K. S. Sim, E. K. Wong Tags: Original Article Source Type: research

Brain early infarct detection using gamma correction extreme‐level eliminating with weighting distribution
SUMMARY According to the statistic from World Health Organization (WHO), stroke is one of the major causes of death globally. Computed tomography (CT) scan is one of the main medical diagnosis system used for diagnosis of ischemic stroke. CT scan provides brain images in Digital Imaging and Communication in Medicine (DICOM) format. The presentation of CT brain images is mainly relied on the window setting (window center and window width), which converts an image from DICOM format into normal grayscale format. Nevertheless, the ordinary window parameter could not deliver a proper contrast on CT brain images for ischemic str...
Source: Scanning - April 30, 2016 Category: Radiology Authors: V. Teh, K. S. Sim, E. K. Wong Tags: Original Article Source Type: research