What does Ipointensa mean?
What does Ipointensa mean?
The tissues that appear lighter will be hyperintense, while if the signal determines a darker image then we will speak of a hypointense signal, while an intermediate signal between the two extreme situations indicated above will be defined as isointense.
What does hypointensity mean?
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Thing means iperintense?
For example, fat appears white (hyperintense) on T1-weighted images and relatively dark (hypointense) on T2-weighted images; water and liquids appear relatively dark in T1-weighted images and light in T2-weighted images.
What is contrast in MRI used for?
Contrast MRI is a highly sensitive and specific diagnostic test, capable of providing, compared to conventional MRI, clearer and more detailed images of the internal structures of the human body (blood vessels, organs, tissues, etc.).
How do you get a T2-weighted image?
To obtain a T2-weighted SE sequence, a long TR associated with a long TE is used. The efficiency of T2 depends on various factors such as the size of the molecules: the smaller the molecule, the longer the desynchronization time; large molecules have shorter T2s. Water therefore has a long T2.
Who reads MRI?
The report is a document written by the radiologist that is read by the neurologist. The neurologist interprets the report and resonance images taking into consideration the person's history and specific condition.
What does gliotic mean?
What is gliosis? It is a reparative process that a category of cells of the central nervous system, the astrocytes, carries out, through the formation of a scar, following an insult or damage that affects the central nervous system itself.
What not to do after an MRI?
First, the patient must answer a questionnaire reminding the contraindications to MRI; subsequently, he must take off and store in a special locker room, until the end of the procedure, all objects and clothing containing metal parts, as these ...
What does hypointense mean in T1?
On T1-weighted images, liquids take on an "almost black" appearance (hypointense in technical jargon) while fat has a practically "white" appearance. On T2-weighted images, liquids look exactly opposite to T1 images, and are thus “white” (hyperintense) while fat is light gray.
What does fat suppression mean?
Imaging with fat suppression In practice, if the object to be examined contains both water hydrogens and fat hydrogens, the technique, for the purpose of image acquisition, is able to "zero" the NMR signals coming from the fat .
How long does it take to get the results of an MRI scan?
The results of an MRI scan are available to the patient only after the radiologist has analyzed the images acquired by the equipment during the examination. As a rule, the wait for the results of an MRI is 3-4 days.
What does Gliosis area mean?
Gliosis is a proliferation process of astrocytes in damaged areas of the central nervous system. It typically leads to the formation of a glial scar.
What does nonspecific mean in medicine?
-there). - Not specific; in medical language, inflammation a., any inflammation sustained by banal germs and which is therefore neither tuberculous nor luetic in nature, nor ascribable to microorganisms responsible for particular and well-defined diseases. / aspe'tʃifiko / adj.