J Neuroradiology
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To assess technical feasibility of cryoneurolysis of the greater occipital nerve in the management of occipital neuralgia. ⋯ Cryoneurolysis of the GON in the management of refractory GON neuralgia is feasible. Initial results are promising as 5/7 cases benefited from a 3-month pain alleviation period.
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The WEB is an innovative flow disruption device for cerebral aneurysm embolization with rapidly expanding indications. Our purpose was to evaluate the diagnostic performance of computed tomography angiography (CTA) at 1-year follow-up of aneurysms treated with the WEB. ⋯ CTA is a reproducible and reliable technique for the follow-up of aneurysms treated with the WEB device.
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Hemodynamic impairments are considered risk factors of cerebral hyperperfusion after carotid artery stenting (CAS); measurement by Single-photon emission computed tomography (SPECT) using a subjective region of interest (ROI) method lacks consistency and reproducibility. ⋯ Objective SEE method had better a predictive capability than ROI method to identify risk of hyperperfusion after CAS.
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To assess the diagnostic utility of different perfusion algorithms for the detection of angiographical terial spasm. ⋯ DC yields significantly higher diagnostic accuracy for the detection of angiographic arterial spasm and higher correlation with angiographic findings compared to MS.
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Segmented brain tissue and myelin volumes can now be automatically calculated using dedicated software (SyMRI), which is based on quantification of R1 and R2 relaxation rates and proton density. The aim of this study was to determine the validity of SyMRI brain tissue and myelin volumetry using various in-plane resolutions. ⋯ SyMRI brain tissue and myelin volumetry with low in-plane resolution and short acquisition times is robust and has a good repeatability so could be useful for follow-up studies.