MRI c Spine Definition

miklJuly 23, 2016
8 images
An MRI scan uses a powerful magnetic field and radio waves to take detailed, 3-D pictures of the body. The human body is 80 percent water, so it contains millions of hydrogen atoms. When these atoms come into contact with the MRI’s magnetic field, they all line up in the same direction. The radio waves […]

MRI c Spine Axial

miklJuly 23, 2016
6 images
On this page, you will learn the basics of how to read your MRI for some of the more common causes of lumbar spine pain (low back pain or lumbago) and radicular pain (sciatica or lower extremity pain). First, I will go over the pertinent lumbar anatomical structures as visualized on both sagittal (view from […]

MRI Bright Spots on the Brain

miklJuly 23, 2016
9 images
People are often alarmed to hear a physician say there are “spots” on the magnetic resonance image (MRI) of their brain. These spots may be referred to as “unidentified bright objects” (UBO), “high signal intensity areas” (HSIA), “white matter hyperintensities,” and “nonspecific white matter changes.” White matter hyperintensities are often located next to the ventricles, […]

MRI Brainstem Anatomy

miklJuly 23, 2016
9 images
The brainstem provides the main motor and sensory innervation to the face and neck via the cranial nerves. It also provides the connection of the cerebrum, basal ganglia, diencephalon, cerebellum and spinal cord. Additionally, there are other other brainstem nuclei. The brainstem also plays an important role in the regulation of cardiac and respiratory function. […]

MRI Brain Vascular Anatomy

miklJuly 23, 2016
6 images
An understanding of cerebral vascular territories is important in understanding stroke and complications from surgery and endovascular procedures. Although one could be excused for thinking that within the brain, such a carefully organised organ, blood supply would be constant, the truth is that a great deal of variety exists. Two main factors contribute to vascular […]

MRI Brain Tumor Contrast

miklJuly 23, 2016
6 images
Brain tumor is an abnormal and often uncontrolled growth of cells, and takes up space within the cranial cavity (skull). It can compress, shift and/or invade and damage healthy brain tissue and nerves and usually interferes with normal brain function. Tumors can be benign (non-cancerous) or malignant (cancerous), can occur in different parts of the […]

MRI Brain Tumor Classification

miklJuly 23, 2016
7 images
The WHO classification of CNS tumours is the most widely accepted system for classifying CNS tumours and was based on the histological characteristics of the tumour. Although the most recent version of the ‘blue book’ is the 4th edition from 2007, an update has been released in 2016 3, which should be considered a replacement […]

MRI Brain Tumor Child

miklJuly 23, 2016
9 images
Brain tumors are the most common solid tumors in children. Approximately 4,000 children and adolescents in the U.S. are diagnosed with primary brain tumors each year. Primary brain tumors start in the brain and generally do not spread outside the brain tissue. Most central nervous system cancers are brain tumors. Brain tumors, either malignant or […]

MRI Brain Tuberculosis

miklJuly 23, 2016
9 images
Tuberculosis of the central nervous system can result from either haematogenous spread from distant systemic infection (e.g. pulmonary tuberculosis) or direct extension from local infection (e.g. tuberculous otomastoiditis). Intracranial manifestations of tuberculosis are protean and can affect all compartments and are discussed individually in separate articles.

MRI Brain Tissue

miklJuly 20, 2016
9 images
This article addresses the problem of the tissue type parameter estimation in brain MRI in the presence of partial volume effects. Automatic MRI brain tissue classification is hampered by partial volume effects that are caused by the finite resolution of the acquisition process. Due to this effect intensity distributions in brain MRI cannot be well […]