World Neurosurg
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To explore predictors of epilepsy presentation in unruptured brain arteriovenous malformations (bAVMs) with quantitative evaluation of location and radiomics features on T2-weighted imaging. ⋯ Epilepsy-susceptible bAVMs had distinct locations and radiomics features on T2-weighted imaging.
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Comparative Study
Comparative evaluation of angioscopy and intravascular ultrasound for assessing plaque protrusion during carotid artery stenting procedures.
Evaluation of plaque protrusion after carotid artery stenting (CAS) is important for predicting periprocedural ischemic complications. In contrast to intravascular ultrasound (IVUS), angioscopy allows direct visualization of the plaque. The aim of this study was to evaluate utility and safety of angioscopy during CAS and compare it with IVUS. ⋯ Angioscopy provided direct visualization of stent lumens after CAS. Angioscopy detected more plaque protrusion than IVUS and allowed clearer observation of plaque characteristics. Angioscopy may be more useful than IVUS for examination of plaque protrusion and plaque evaluation after CAS, especially for plaque identified as potentially vulnerable by preprocedural examination.
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The purpose of this study was to identify predictors for postacute care facility discharge for patients undergoing posterior cervical decompression and fusion (PCDF) and to determine if discharge placement impacts postdischarge outcomes. ⋯ Results of this cross-sectional study suggest that patients with PCDF discharged to a postacute care facility have a higher likelihood of having a severe AE after discharge as well as a higher likelihood of being readmitted.
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Computer-assisted three-dimensional navigation often guides spinal instrumentation. Optical topographic imaging (OTI) offers comparable accuracy and significantly faster registration relative to current navigation systems in open posterior thoracolumbar exposures. We validate the usefulness and accuracy of OTI in minimally invasive spinal approaches. ⋯ OTI is a novel navigation technique previously validated for open posterior exposures and in this study has comparable accuracy for mini-open minimally invasive surgery exposures. The likelihood of successful registration is affected more by the geometry of the exposure than by its size.
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Comparative Study
Dissociation between 11C-methionine-PET and Gd-MRI in the longitudinal features of Glioblastoma after postoperative radiotherapy.
The aims of the present study were to compare the longitudinal changes of glioblastoma multiforme after radiotherapy (RT) between 11C-methionine positron emission tomography (MET-PET) and gadolinium (Gd)-enhanced magnetic resonance imaging (MRI) and to clarify whether these changes were predictive of survival. We included 30 patients, who had undergone MET-PET and Gd-MRI before and every 3 months after RT. The lesion/normal brain uptake (L/N) ratio and contrast-enhancing lesion volume were examined. ⋯ The variation rates of the L/N ratio between pre-RT and 3 months differentiated survival of >23 months from ≤23 months. A dissociation could exist in the longitudinal changes of GBM after RT between MET-PET and Gd-MRI. The variation rate of the L/N ratio could be related to survival.