Nervous system tumors Imageology diagnostic tests to select the appropriate checks can be more accurate, more timely position to determine the nature of disease, and further treatment to provide the necessary information. Neural Imageology check is the diagnosis of nervous system tumors is an important part.
Diagnosis of neurological examination methods, including X-ray (skull, spine), air brain and ventricle angiography, angiography, myelography, CT scan and magnetic resonance imaging (MRI).
(1) gas impact of brain and ventricle appropriate
Brain imaging and ventriculography gas in CT, MRI came before the diagnosis of brain tumors has been one of the important ways. As are result with traumatic examination in CT, MRI of the extensive application of these two methods has now rarely used.
(2) The skull and spine X-ray
X-ray examination is the most basic neural Imageology check inspection methods, mainly used for cranial trauma injury and spinal positioning or diagnosis. On the terms of the central nervous system tumor diagnosis, x-ray of the bone is involved with a certain value, change of bone tissue is superior to other tests.
(3) nervous system tumor diagnostic tests, CT scan
CT scans can show the tumor images, the density of high resolution, very accurate positioning of the tumor, and can prompt a certain extent, the nature of the tumor, it is a cross-sectional scan, the positioning of the critical parts of the tumor are still some errors . Petrous bone artifacts caused by the impact of the diagnosis of posterior fossa tumors, the application of contrast agent in the Code, a certain risk, but because of equipment has been more popular, is still the most basic way to check the nervous system.
(4) that affect blood vessels
The main purpose of angiography to understand the blood supply of tumors, the tumor feeding arteries and draining veins, and tumor relations with neighboring large vessels. Central nervous system angiography include:
carotid angiography shows the main carotid artery, anterior cerebral, artery and its branches, cerebral venous jugular vein can also be displayed. Posterior cerebral artery shows the approximate 20% to 30%.
Main vertebral artery angiography showed the vertebral artery, basilar artery and posterior cerebral artery.
Cerebral angiography showed a contrast to both carotid arteries, but the basilar artery and its branches.
Adams Intravenous angiography using digital subtraction technique after intravenous injection of contrast agent for cerebral vascular screening.
mainly spinal cord angiography before and after the artery and its branches appear.
(5) MRI examination
Enhanced MRI of the spinal cord, spinal canal, cranial vertebral junction, posterior fossa and the understanding of white matter lesions.
(6) diagnostic nervous system tumors, spinal cord imaging
Myelography refers to the contrast agent into the spinal subarachnoid space, according to the abnormal change of contrast agent shows to diagnose spinal disease screening method. Commonly used contrast agents, including gas, iodine and specific for the benzyl ester of water-soluble contrast medium myelography.