MRI sequence parameters
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Citation:
Skalski M, Kang O, Beviss-Challinor K, et al. MRI sequence parameters. Reference article, Radiopaedia.org (Accessed on 24 Mar 2025) https://doi.org/10.53347/rID-21540
rID:
21540
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Disclosures:
At the time the article was created Matt Skalski had no recorded disclosures.
View Matt Skalski's current disclosures
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At the time the article was last revised Andrew Murphy had no recorded disclosures.
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9 times, by
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Listed in the table below are the most common acquisition parameters for commonly used MRI pulse sequences (in msec).
For a general introduction to these sequences please refer to MRI sequences (basic).
The specific parameters for any given study varies from one manufacturer to another, and from one imaging center to another.
- TR: <800
- TE: <30
- flip angle: 90°
PD
- TR: >1000
- TE: <30
- flip angle: 90°
- TR: >2000
- TE: >80
- flip angle: 90°
FSE T2
- TR: >2000
- TE: >60
- flip angle: 90°
GRE T1
- TR: variable
- TE: <30
- flip angle: 70-110°
GRE T2*
- TR: variable
- TE: <30
- flip angle: 5-20°
STIR
- TR: >2000
- TE: >60
- flip angle: 180 -> 90°
- inversion time (TI): 120-170
FLAIR
- TR: >3000
- TE: >80
- flip angle: variable
- inversion time: 1700–2200
Quiz questions
References
- 1. Helms CA, Major NM, Anderson MW et-al. Musculoskeletal MRI. Saunders. (2009) ISBN:1416055347. Read it at Google Books - Find it at Amazon
- 2. MR Pulse Sequences: What Every Radiologist Wants to Know but Is Afraid to Ask1. Radiographics. 2006;26 (2): 513-537. Radiographics (full text) - doi:10.1148/rg.262055063
- 3. Tsuchiya K, Katase S, Yoshino A et-al. FLAIR MR imaging for diagnosing intracranial meningeal carcinomatosis. AJR Am J Roentgenol. 2001;176 (6): 1585-8. AJR Am J Roentgenol (full text) - Pubmed citation
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