Blooming artifact (MRI)
Last revised by Tariq Walizai
on 5 Dec 2024
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Walizai T, Sharma R, et al. Blooming artifact (MRI). Reference article, Radiopaedia.org (Accessed on 10 Dec 2024) https://doi.org/10.53347/rID-46216
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rID:
46216
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Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
Last revised:
5 Dec 2024,
Tariq Walizai
Disclosures:
At the time the article was last revised Tariq Walizai had no financial relationships to ineligible companies to disclose.
View Tariq Walizai's current disclosures
Revisions:
12 times, by
10 contributors -
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Synonyms:
- Blooming artefact
- Blooming artifact
Blooming artifact is a susceptibility artifact encountered on some MRI sequences in the presence of paramagnetic substances that affect the local magnetic milieux. Although it is an artifact, it may be deliberately exploited to improve detection of certain small lesions, much as the T1 shortening effects of low concentration gadolinium are used to detect contrast enhancement.
One of the most powerful and widely available sequences which maximizes blooming artifact to great effect is susceptibility-weighted imaging (SWI). Gradient echo and low B-value diffusion weighted imaging may also be useful in the absence of a dedicated susceptibility weighted sequence.
Blooming is seen surrounding a number of compounds:
-
hemosiderin from prior hemorrhage, e.g.
-
calcification, particularly dystrophic, e.g.
neurocysticercosis (granulomatous stage)
-
metal, e.g.
surgical or traumatic fragments
-
gas, e.g.
-
other, e.g.
recent (<3 months) parenteral administration of a superparamagnetic iron oxide (e.g. ferumoxytol for iron deficiency anemia) 3
History and etymology
The term "blooming" refers to the fact that lesions appear larger than they actually are.
References
- 1. Ojeda-Fournier H, Choe KA, Mahoney MC. Recognizing and interpreting artifacts and pitfalls in MR imaging of the breast. Radiographics. 2007;27 Suppl 1 (suppl_1): S147-64. doi:10.1148/rg.27si075516 - Pubmed citation
- 2. Mittal P, Kalia V, Dua S. Pictorial essay: Susceptibility-weighted imaging in cerebral ischemia. Indian J Radiol Imaging. 2010;20 (4): 250-3. doi:10.4103/0971-3026.73530 - Free text at pubmed - Pubmed citation
- 3. Bowser B, Campeau N, Carr C et al. Incidental Ferumoxytol Artifacts in Clinical Brain MR Imaging. Neuroradiology. 2016;58(11):1087-91. doi:10.1007/s00234-016-1747-1 - Pubmed
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