Flip angle
Citation, DOI, disclosures and article data
Citation:
prabhakar G, Murphy A, Bell D, et al. Flip angle. Reference article, Radiopaedia.org (Accessed on 08 Mar 2025) https://doi.org/10.53347/rID-45465
Permalink:
rID:
45465
Article created:
27 May 2016,
Gautam prabhakar
Disclosures:
At the time the article was created Gautam prabhakar had no recorded disclosures.
View Gautam prabhakar's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Andrew Murphy had no recorded disclosures.
View Andrew Murphy's current disclosures
Revisions:
7 times, by
5 contributors -
see full revision history and disclosures
Sections:
Synonyms:
- Flip angles
The flip angle is an MRI phenomenon by which the axis of the hydrogen proton shifts from its longitudinal plane (static magnetic field B0) Z axis to its transverse plane XY axis by excitation with the help of radiofrequency (RF) pulses. A RF pulse is sent in at the precise Larmor frequency in relation to the gyromagnetic ratio and magnetic field strength.
Quiz questions
Incoming Links
Related articles: Imaging physics
- imaging physics
- imaging in practice
- imaging technology
-
x-ray physics
- ionizing radiation
- interaction with matter
- x-ray spectrum
- radiation units
- effective dose
- entrance skin dose
- radiation safety
- radiation damage (biomolecular)
- radiation damage (skin injury)
- stochastic effect
- CT physics
-
MRI physics
- B0
- chemical shift
- dependence of magnetization (proton density, field strength and temperature)
- echo time
- eddy currents
- electromagnetic induction
- Ernst angle
- flip angle
- Larmor frequency
- magnetic dipole
- magnetic field gradient
- magnetic susceptibility
- magnetism
- molecular tumbling rate effects on T1 and T2
- net magnetization vector (NMV)
- relaxation
- repetition time
- resonance and radiofrequency (RF)
- units of magnetism
- ultrasound physics
- nuclear medicine physics
Unable to process the form. Check for errors and try again.