- Photon-Counting CT in the Head and Neck: Current Applications and Future Prospects
This article reviews the current clinical application of PCD-CT in head and neck imaging, specifically the temporal bones, facial bones, and paranasal sinuses. PCD-CT offers improved spatial resolution, better iodine contrast-to-noise ratio, reduced artifact, and lower radiation dose.
- MR Imaging Features of Critical Spinal Demyelinating Lesions Associated with Progressive Motor Impairment
This retrospective, observational MRI study compared spinal cord critical demyelinating lesions anatomically associated with progressive motor impairment with any additional “noncritical” spinal cord demyelinating lesions. MRI characteristics that favored critical spinal cord demyelinating lesions included moderate-to-severe, focal, lesion-associated spinal cord atrophy; lateral column axial location; central region; ventral column; and larger lesion size. In particular, the presence of focal, lesion-associated atrophy, lateral column axial location, and larger lesion size may be associated with the development of progressive motor impairment in MS.
- Comparison of a Whole-Brain Contrast-Enhanced 3D TSE T1WI versus Orbits Contrast-Enhanced 2D Coronal T1WI at 3T MRI for the Detection of Optic Nerve Enhancement in Patients with Acute Loss of Visual Acuity
This retrospective, single-center study of 1023 patients presenting with acute loss of vision compared orbits contrast-enhanced 2D coronal T1WI with a whole-brain contrast-enhanced 3D TSE T1WI at 3T for the detection of optic nerve enhancement. The latter (WBCE-3D T1WI) demonstrated higher sensitivity and specificity in diagnosing optic neuritis, particularly in cases involving the canalicular segments.
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