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SUMMARY:
Photon-counting CT is an increasingly used technology with numerous advantages over conventional energy-integrating detector CT. These include superior spatial resolution, high temporal resolution, and inherent spectral imaging capabilities. Recently, photon-counting CT myelography was described as an effective technique for the detection of CSF-venous fistulas, a common cause of spontaneous intracranial hypotension. It is likely that photon-counting CT myelography will also have advantages for the localization of dural tears, a separate type of spontaneous spinal CSF leak that requires different myelographic techniques for accurate localization. To our knowledge, prior studies on photon-counting CT myelography have been limited to techniques for detecting CSF-venous fistulas. In this technical report, we describe our technique and early experience with photon-counting CT myelography for the localization of dural tears.
ABBREVIATIONS:
- CTM
- CT myelography
- DSM
- digital subtraction myelography
- EID
- energy-integrating detector
- PCCT
- photon-counting CT
- PC-CTM
- photon-counting CT myelography
- SIH
- spontaneous intracranial hypotension
- SR
- standard resolution
- UHR
- ultra-high-resolution
- VMI
- virtual monoenergetic image
Footnotes
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- © 2024 by American Journal of Neuroradiology