RT Journal Article
SR Electronic
T1 Myelographic Techniques for the Localization of CSF-Venous Fistulas: Updates in 2024
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1403
OP 1412
DO 10.3174/ajnr.A8299
VO 45
IS 10
A1 Madhavan, Ajay A.
A1 Brinjikji, Waleed
A1 Cutsforth-Gregory, Jeremy K.
A1 Amrhein, Timothy J.
A1 Kranz, Peter G.
A1 Benson, John C.
A1 Diehn, Felix E.
A1 Johnson-Tesch, Ben A.
A1 Liebo, Greta B.
A1 Lehman, Vance T.
A1 Mark, Ian T.
A1 Morris, Pearse P.
A1 Oien, Michael P.
A1 Shlapak, Darya P.
A1 Verdoorn, Jared T.
YR 2024
UL http://www.ajnr.org/content/45/10/1403.abstract
AB SUMMARY: CSF-venous fistulas (CVFs) are a common cause of spontaneous intracranial hypotension. Despite their relatively frequent occurrence, they can be exceedingly difficult to detect on imaging. Since the initial description of CVFs in 2014, the recognition and diagnosis of this type of CSF leak has continually increased. As a result of multi-institutional efforts, a wide spectrum of imaging modalities and specialized techniques for CVF detection is now available. It is important for radiologists to be familiar with the multitude of available techniques, because each has unique advantages and drawbacks. In this article, we review the spectrum of imaging modalities available for the detection of CVFs, explain the advantages and disadvantages of each, provide typical imaging examples, and discuss provocative maneuvers that may improve the conspicuity of CVFs. Discussed modalities include conventional CT myelography, dynamic myelography, digital subtraction myelography, conebeam CT myelography, decubitus CT myelography by using conventional energy-integrating detector scanners, decubitus photon counting CT myelography, and intrathecal gadolinium MR myelography. Additional topics to be discussed include optimal patient positioning, respiratory techniques, and intrathecal pressure augmentation.APanteroposteriorCBCTconebeam CTCB-CTMconebeam CT myelographyCTMCT myelographyCVFCSF-venous fistulaDSMdigital subtraction myelographyEIDenergy-integrating detectorGdMintrathecal gadolinium MR myelographyIVVPinternal vertebral venous plexusPCCTphoton-counting detector CTPC-CTMphoton-counting CT myelographySIHspontaneous intracranial hypotensionSRstandard resolutionUHRultra-high resolutionVMIvirtual monoenergetic image