Flutemetamol (18F): Difference between revisions

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'''Flutemetamol (18F)''' is a [[radiopharmaceutical]] compound used in [[positron emission tomography]] (PET) imaging. It is specifically designed to bind to [[beta-amyloid]] plaques in the brain, which are a hallmark of [[Alzheimer's disease]].
{{Short description|A radiopharmaceutical used in PET imaging of the brain}}


==Chemistry==
[[File:Flutemetamol_(18F).svg|thumb|right|Chemical structure of Flutemetamol (18F)]]
Flutemetamol (18F) is a fluorine-18 labeled derivative of [[Pittsburgh compound B]] (PiB), a thioflavin derivative that binds to beta-amyloid plaques. The fluorine-18 isotope acts as a positron emitter, allowing the compound to be visualized using PET imaging.


==Clinical Use==
'''Flutemetamol (18F)''' is a [[radiopharmaceutical]] used in [[positron emission tomography]] (PET) imaging to visualize [[beta-amyloid]] plaques in the [[brain]]. These plaques are associated with [[Alzheimer's disease]] and other [[neurodegenerative disorders]].
Flutemetamol (18F) is used in PET imaging to detect beta-amyloid plaques in the brain. This can aid in the diagnosis of Alzheimer's disease and other forms of [[dementia]]. The presence of beta-amyloid plaques is not definitive proof of Alzheimer's disease, as they can also be found in other conditions and in older people with normal cognition. However, their absence can help rule out Alzheimer's disease.


==Regulation==
==Chemical composition==
Flutemetamol (18F) was approved by the [[Food and Drug Administration]] (FDA) in 2013 for use in the United States. It is marketed under the brand name Vizamyl by [[GE Healthcare]].
Flutemetamol (18F) is a [[fluorine-18]] labeled [[stilbene]] derivative. The [[fluorine-18]] isotope is a [[radioactive]] [[fluorine]] atom that emits [[positrons]], which are detected by PET scanners to create detailed images of the brain.


==See Also==
==Mechanism of action==
Flutemetamol (18F) binds to [[beta-amyloid]] plaques in the brain. When administered to a patient, it crosses the [[blood-brain barrier]] and attaches to these plaques. The [[radioactive decay]] of fluorine-18 emits positrons, which interact with electrons in the brain tissue, producing [[gamma rays]] that are detected by the PET scanner. This allows for the visualization of amyloid plaque distribution and density.
 
==Clinical use==
Flutemetamol (18F) is primarily used in the diagnosis of [[Alzheimer's disease]]. It helps in the assessment of patients with cognitive impairment by providing images that show the presence or absence of amyloid plaques. This information can aid in distinguishing Alzheimer's disease from other types of [[dementia]].
 
==Safety and precautions==
As with any radiopharmaceutical, there are safety considerations when using Flutemetamol (18F). The radiation dose is relatively low, but it is important to minimize exposure to both the patient and healthcare providers. Proper protocols should be followed to ensure safe handling and administration.
 
==Related pages==
* [[Alzheimer's disease]]
* [[Alzheimer's disease]]
* [[Beta-amyloid]]
* [[Positron emission tomography]]
* [[Positron emission tomography]]
* [[Radiopharmaceutical]]
* [[Radiopharmaceutical]]
* [[Pittsburgh compound B]]
* [[Beta-amyloid]]


[[Category:Radiopharmaceuticals]]
[[Category:Radiopharmaceuticals]]
[[Category:Medical imaging]]
[[Category:Alzheimer's disease]]
[[Category:Alzheimer's disease]]
[[Category:Positron emission tomography]]
{{medicine-stub}}

Latest revision as of 11:38, 15 February 2025

A radiopharmaceutical used in PET imaging of the brain


Chemical structure of Flutemetamol (18F)

Flutemetamol (18F) is a radiopharmaceutical used in positron emission tomography (PET) imaging to visualize beta-amyloid plaques in the brain. These plaques are associated with Alzheimer's disease and other neurodegenerative disorders.

Chemical composition[edit]

Flutemetamol (18F) is a fluorine-18 labeled stilbene derivative. The fluorine-18 isotope is a radioactive fluorine atom that emits positrons, which are detected by PET scanners to create detailed images of the brain.

Mechanism of action[edit]

Flutemetamol (18F) binds to beta-amyloid plaques in the brain. When administered to a patient, it crosses the blood-brain barrier and attaches to these plaques. The radioactive decay of fluorine-18 emits positrons, which interact with electrons in the brain tissue, producing gamma rays that are detected by the PET scanner. This allows for the visualization of amyloid plaque distribution and density.

Clinical use[edit]

Flutemetamol (18F) is primarily used in the diagnosis of Alzheimer's disease. It helps in the assessment of patients with cognitive impairment by providing images that show the presence or absence of amyloid plaques. This information can aid in distinguishing Alzheimer's disease from other types of dementia.

Safety and precautions[edit]

As with any radiopharmaceutical, there are safety considerations when using Flutemetamol (18F). The radiation dose is relatively low, but it is important to minimize exposure to both the patient and healthcare providers. Proper protocols should be followed to ensure safe handling and administration.

Related pages[edit]