basic physical principles of nuclear magnetic resonance imaging (n.m.r.i), a nonionizing medical imaging technique, are described. principles of nmri with other conventional imaging methods, ie, isotope scanning, ultrasonography and radiography have been compared. t1 and t2 and spin density (s.d.) factors and different image construction techniques based on their different combinations is discu...

Magnetic resonance imaging (MRI) has been shown to be far more sensitive than computed tomography (CT) in the detection of multiple sclerosis plaques within the brain. Unlike CT, MRI is also able to detect multiple sclerosis in the brainstem and cerebellum. This report is the first description of MRI of multiple sclerosis plaques within the cervical spinal cord. Twenty-one patients with clinica...

cerebral palsy is the most common chronic motor disorder of childhood, that affecting approximately 3 infants per 1000 live-births. the risk of brain injuries that potentially cause cerebral palsy has amplified with increasing in survival rates for preterm infants. in addition cerebral palsy has a huge economic impact, to immeasurable health, social, and psychological problems that affected chi...

[no abstract available]

Background: Magnetic resonance imaging (MRI) is a non-invasive imaging technology that shows detailed anatomical and pathological images. It is often used for disease detection, diagnosis, and treatment monitoring, in particular with neurodegenerative diseases, such as Multiple sclerosis (MS), Alzheimer's and amyotrophic lateral sclerosis. However, conventional MRI provides only qualitative inf...

1 Ali R, Nicholas RS, Muraro PA. Drugs in development for relapsing multiple sclerosis. Drugs 2013; published online April 23. DOI:10.1007/s40265-0130030-6. 2 Barkhof F, Simon JH, Fazekas F, et al. MRI monitoring of immunomodulation in relapse-onset multiple sclerosis trials. Nat Rev Neurol 2011; 8: 13–21. 3 Sormani MP, Bonzano L, Roccatagliata L, et al. Magnetic resonance imaging as a potentia...

BACKGROUND Human T-cell lymphotropic virus type I (HTLV-I)-associated myelopathy/tropical spastic paraparesis (HAM/TSP) in British Columbian Coastal Natives has, to date, been a clinical and laboratory diagnosis. However, magnetic resonance imaging (MRI) abnormalities have been well-described in other populations in which HAM/TSP is endemic. METHODS In order to assess the usefulness of MRI as...

Background: The current case report aimed at describing the clinical, radiological, and immunological findings of a case of ischemic stroke due to acute thrombosis of the left internal carotid artery and multiple watershed infarctions mimicking Multiple Sclerosis (MS). Clinical Presentation and Intervention: A 24-year-old right-handed Iranian female was initially diagnosed with Multiple Sclero...

OBJECTIVE Conventional magnetic resonance imaging (MRI) of the multiple sclerosis spinal cord is limited by low specificity regarding the underlying pathological processes, and new MRI metrics assessing microscopic damage are required. We aim to show for the first time that neurite orientation dispersion (i.e., variability in axon/dendrite orientations) is a new biomarker that uncovers previous...

Background: Multiple Sclerosis (MS) is the most frequent non-traumatic neurological disease capable of causing disability in young adults. Detection of MS lesions with magnetic resonance imaging (MRI) is the most common technique. However, manual interpretation of vast amounts of data is often tedious and error-prone. Furthermore, changes in lesions are often subtle and extremely unrepresentati...