نتایج جستجو برای: mri index
تعداد نتایج: 498003 فیلتر نتایج به سال:
BACKGROUND Cardiac dysfunction is associated with neuroanatomic and neuropsychological changes in aging adults with prevalent cardiovascular disease, theoretically because systemic hypoperfusion disrupts cerebral perfusion, contributing to subclinical brain injury. We hypothesized that cardiac function, as measured by cardiac index, would be associated with preclinical brain magnetic resonance ...
OBJECTIVE To evaluate the sensitivity of multiparametric magnetic resonance imaging (mp-MRI) for detecting prostate cancer foci, including the largest (index) lesions. PATIENTS AND METHODS In all, 115 patients with biopsy confirmed prostate cancer underwent mp-MRI before radical prostatectomy. A single expert radiologist recorded all prostate cancer foci including the index lesion 'blinded' t...
BACKGROUND Standard imaging methods in evaluating chest wall deformities, such as Pectus Excavatum (PE) in paediatric and adolescent patients, include baseline 2-view chest radiography and chest CT scan. Only few studies to date investigated the value of fast MRIin the pre operative assessment of patient affected by PE. OBJECTIVE To evaluate the efficacy of chest fast MRI in pre-operative man...
OBJECTIVES (1) To determine the prevalence of central nervous system (CNS) pathology identified on head magnetic resonance imaging (MRI) scans in children with central sleep apnea (CSA); (2) to assess the yield of MRI in evaluation of CSA; and (3) to identify factors that predict CNS pathology in children with CSA. STUDY DESIGN Case series with chart review. SETTING Tertiary children's hosp...
BACKGROUND With the advent of numerous new-generation disease-modifying drugs for multiple sclerosis (MS), the discrimination between relapsing-remitting MS (RRMS) and secondary progressive MS (SPMS) has become a problem of high importance. The aim of our study was to find a simple way to accurately discriminate between RRMS and SPMS that is applicable in clinical practice as a composite marker...
The human brain is a highly complex structure, which can be only partially described by conventional metrics derived from magnetic resonance imaging (MRI), such as volume, cortical thickness, and gyrification index. In the last years, fractal dimension (FD) - useful quantitative index of geometry has proven to well express morphological complexity cerebral cortex. However, this likely higher th...
OBJECTIVE The purpose of this article is to assess the interobserver variability for scoring MRI features of Crohn disease activity and to correlate two MRI scoring systems to the Crohn disease endoscopic index of severity (CDEIS). MATERIALS AND METHODS Thirty-three consecutive patients with Crohn disease undergoing 3-T MRI examinations (T1-weighted with IV contrast medium administration and ...
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