Journal of neuroimaging : official journal of the American Society of Neuroimaging
-
Review Case Reports
Drug-Eluting Balloon Angioplasty for In-Stent Restenosis Following Carotid Artery Stent Placement.
Drug-eluting balloons (DEBs) have been proposed as an option for the treatment of in-stent restenosis (ISR) following carotid artery stent placement. We report our experience and review of literature to provide additional data. ⋯ The use of DEBs is a promising development and a viable alternative for management of severe and recurrent carotid ISR.
-
To investigate the preferred location of intracranial hemangiopericytomas (IHPCs) with voxel-based mapping and 3-dimensional reconstruction from MRI data. ⋯ This is the first voxel-based study to explore the predilection site of IHPCs. Our study suggests that these tumors commonly affect the posterior cranial cavity, adjoining the tentorium and venous sinus. Further research is needed to investigate the possible factors underlying these topographic preferences.
-
Clinicians involved with different aspects of the care of persons with multiple sclerosis (MS) and scientists with expertise on clinical and imaging techniques convened in Dallas, TX, USA on February 27, 2019 at a North American Imaging in Multiple Sclerosis Cooperative workshop meeting. The aim of the workshop was to discuss cardinal pathobiological mechanisms implicated in the progression of MS and novel imaging techniques, beyond brain atrophy, to unravel these pathologies. Indeed, although brain volume assessment demonstrates changes linked to disease progression, identifying the biological mechanisms leading up to that volume loss are key for understanding disease mechanisms. ⋯ Regarding PET, the panel agreed upon its utility to identify ongoing pathological processes. However, due to costs, required expertise, and the use of ionizing radiation, PET was not considered to be a viable option for ongoing care of persons with MS. Collaborative efforts fostering robust study designs and imaging technique standardization across scanners and centers are needed to unravel disease mechanisms leading to progression and discovering medications halting neurodegeneration and/or promoting repair.
-
Parasitic neuroinfections in humans have etiological agents spanning a broad spectrum from unicellular (protozoan) to multicellular helminthic (metazoan) organisms. Cerebral coenurosis is a rare cestodal helminthic infection caused by Taenia multiceps. The neuroimaging features of this entity were reviewed to discern an imaging phenotype. ⋯ In an appropriate clinical setting, a cystic lesion with clustered eccentric internal nodular foci ought to raise the suspicion of this rare infection. Magnetic resonance spectroscopic signature of succinate and alanine, if present, further strengthens the likelihood of coenurosis. Signal characteristics, wall enhancement, and perilesional edema may vary, possibly determined by the stage in the evolution of the parasite.