Sialolithiasis MRI: Difference between revisions
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{{Sialolithiasis}} | {{Sialolithiasis}} | ||
{{CMG}}; {{AE}} | {{CMG}}; {{AE}} {{MA}} | ||
==Overview== | ==Overview== | ||
Magnetic resonance sialography may be helpful in the diagnosis of sialolithiasis Findings on Magnetic resonance sialography suggestive of sialolithiasis include low signal regions outlined by [[saliva]] ( high signal regions) on T2 weighted images. MRI can distinguished acute from chronic obstruction. | |||
==MRI== | ==MRI== | ||
*Magnetic resonance sialography may be helpful in the diagnosis of sialolithiasis. Findings on magnetic resonance sialography suggestive of sialolithiasis include:<ref name="pmid10543651">{{cite journal |vauthors=Sumi M, Izumi M, Yonetsu K, Nakamura T |title=The MR imaging assessment of submandibular gland sialoadenitis secondary to sialolithiasis: correlation with CT and histopathologic findings |journal=AJNR Am J Neuroradiol |volume=20 |issue=9 |pages=1737–43 |year=1999 |pmid=10543651 |doi= |url=}}</ref><ref name="pmid11058627">{{cite journal |vauthors=Becker M, Marchal F, Becker CD, Dulguerov P, Georgakopoulos G, Lehmann W, Terrier F |title=Sialolithiasis and salivary ductal stenosis: diagnostic accuracy of MR sialography with a three-dimensional extended-phase conjugate-symmetry rapid spin-echo sequence |journal=Radiology |volume=217 |issue=2 |pages=347–58 |year=2000 |pmid=11058627 |doi=10.1148/radiology.217.2.r00oc02347 |url=}}</ref><ref name="pmid10966693">{{cite journal |vauthors=Jäger L, Menauer F, Holzknecht N, Scholz V, Grevers G, Reiser M |title=Sialolithiasis: MR sialography of the submandibular duct--an alternative to conventional sialography and US? |journal=Radiology |volume=216 |issue=3 |pages=665–71 |year=2000 |pmid=10966693 |doi=10.1148/radiology.216.3.r00se12665 |url=}}</ref> | |||
**Stones are visible as low signal regions outlined by saliva (high signal regions) on T2 weighted images. | |||
* | * Acute from chronic obstruction can be distinguished by magnetic resonance sialography on T1 signals: | ||
** In acute obstruction, enlargement of the gland and [[inflammatory]] changes may be seen as reduced signal compared to other side. | |||
** In chronic cases, size of the gland is decreased and fatty atrophy may be seen as an increased signal compared to the other side. | |||
** | |||
** | |||
==References== | ==References== | ||
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{{WH}} | {{WH}} | ||
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[[Category:Medicine]] | [[Category:Medicine]] | ||
[[Category:Gastroenterology]] | [[Category:Gastroenterology]] | ||
[[Category:Up-To-Date]] | [[Category:Up-To-Date]] | ||
[[Category:Radiology]] | [[Category:Radiology]] | ||
Latest revision as of 00:10, 30 July 2020
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Sialolithiasis MRI On the Web |
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American Roentgen Ray Society Images of Sialolithiasis MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mahda Alihashemi M.D. [2]
Overview
Magnetic resonance sialography may be helpful in the diagnosis of sialolithiasis Findings on Magnetic resonance sialography suggestive of sialolithiasis include low signal regions outlined by saliva ( high signal regions) on T2 weighted images. MRI can distinguished acute from chronic obstruction.
MRI
- Magnetic resonance sialography may be helpful in the diagnosis of sialolithiasis. Findings on magnetic resonance sialography suggestive of sialolithiasis include:[1][2][3]
- Stones are visible as low signal regions outlined by saliva (high signal regions) on T2 weighted images.
- Acute from chronic obstruction can be distinguished by magnetic resonance sialography on T1 signals:
- In acute obstruction, enlargement of the gland and inflammatory changes may be seen as reduced signal compared to other side.
- In chronic cases, size of the gland is decreased and fatty atrophy may be seen as an increased signal compared to the other side.
References
- ↑ Sumi M, Izumi M, Yonetsu K, Nakamura T (1999). "The MR imaging assessment of submandibular gland sialoadenitis secondary to sialolithiasis: correlation with CT and histopathologic findings". AJNR Am J Neuroradiol. 20 (9): 1737–43. PMID 10543651.
- ↑ Becker M, Marchal F, Becker CD, Dulguerov P, Georgakopoulos G, Lehmann W, Terrier F (2000). "Sialolithiasis and salivary ductal stenosis: diagnostic accuracy of MR sialography with a three-dimensional extended-phase conjugate-symmetry rapid spin-echo sequence". Radiology. 217 (2): 347–58. doi:10.1148/radiology.217.2.r00oc02347. PMID 11058627.
- ↑ Jäger L, Menauer F, Holzknecht N, Scholz V, Grevers G, Reiser M (2000). "Sialolithiasis: MR sialography of the submandibular duct--an alternative to conventional sialography and US?". Radiology. 216 (3): 665–71. doi:10.1148/radiology.216.3.r00se12665. PMID 10966693.