From the Division of Neuroradiology (A.A.M., W.B., J.C.B., B.A.J.-T., G.B.L., I.T.M., M.P.O., D.P.S., L.Y., J.T.V.), Department of Radiology, Mayo Clinic, Rochester, Minnesota
Department of Neurology (J.K.C.-G.), Mayo Clinic, Rochester, Minnesota.
AJNR Am J Neuroradiol. 2024 May 9;45(5):668-671. doi: 10.3174/ajnr.A8179.
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.
光子计数 CT 是一种越来越常用的技术，与传统的能量积分探测器 CT 相比具有许多优势。这些优势包括更高的空间分辨率、更高的时间分辨率和固有的光谱成像能力。最近，光子计数 CT 脊髓造影被描述为检测 CSF-静脉瘘的有效技术，CSF-静脉瘘是自发性颅内低血压的常见原因。光子计数 CT 脊髓造影很可能也有利于硬脑膜撕裂的定位，硬脑膜撕裂是另一种类型的自发性脊髓 CSF 漏，需要不同的脊髓造影技术来进行准确的定位。据我们所知，以前关于光子计数 CT 脊髓造影的研究仅限于检测 CSF-静脉瘘的技术。在本技术报告中，我们描述了我们用于定位硬脑膜撕裂的光子计数 CT 脊髓造影技术及其早期经验。
