- 2-D magnetic resonance spectroscopic imaging of the pediatric brain using compressed sensingAbstract Background Magnetic resonance spectroscopic imaging helps to determine abnormal brain tissue conditions by evaluating metabolite concentrations. Although a powerful technique, it is underutilized in routine clinical studies because of its long scan times. Objective In this study, we evaluated the
- Frontal cortex differentiates between free and imposed target selection in multiple-target searchPublication date: Available online 28 August 2019Source: NeuroImageAuthor(s): Eduard Ort, Johannes J. Fahrenfort, Reshanne Reeder, Stefan Pollmann, Christian N.L. OliversAbstractCognitive control can involve proactive (preparatory) and reactive (corrective) mechanisms. Using a gaze-contingent eye tracking paradigm combined with fMRI, we investigated the involvement of these different modes of control and their underlying neural networks, when sw
- Differential tractography as a track-based biomarker for neuronal injuryPublication date: Available online 28 August 2019Source: NeuroImageAuthor(s): Fang-Cheng Yeh, Islam M. Zaydan, Valerie R. Suski, David Lacomis, R. Mark Richardson, Joseph C. Maroon, Jessica Barrios-MartinezAbstractDiffusion MRI tractography has been used to map the axonal structure of the human brain, but its ability to detect neuronal injury is yet to be explored. Here we report differential tractography, a new type of tractography that utilize
- Tractography delineation of the vertical occipital fasciculus using quantitative T1 mappingPublication date: Available online 28 August 2019Source: NeuroImageAuthor(s): Roey Schurr, Shir Filo, Aviv A. MezerAbstractThe vertical occipital fasciculus (VOF) is a white-matter tract that connects the ventral and dorsal visual streams. The precise borders of the VOF have been a matter of dispute since its discovery in the 19th century. The presence of an adjacent vertical pathway, the posterior arcuate fasciculus, makes it especially hard to
- The hippocampal-to-ventricle ratio (HVR): Presentation of a manual segmentation protocol and preliminary evidencePublication date: Available online 28 August 2019Source: NeuroImageAuthor(s): Dorothee Schoemaker, Claudia Buss, Sandra Pietrantonio, Larah Maunder, Silka Dawn Freiesleben, Johanna Hartmann, D. Louis Collins, Sonia Lupien, Jens C. PruessnerAbstractDisentangling age-related changes from developmental variations in hippocampal volume has proven challenging. This article presents a manual segmentation protocol for the hippocampal-to-ventricle ratio
- SpinDoctor: A MATLAB toolbox for diffusion MRI simulationPublication date: Available online 27 August 2019Source: NeuroImageAuthor(s): Jing-Rebecca Li, Van-Dang Nguyen, Try Nguyen Tran, Jan Valdman, Bang Cong Trang, Khieu Van Nguyen, Vu Duc Thach Son, Hoang An Tran, Hoang Trong An Tran, Thi Minh Phuong NguyenAbstractThe complex transverse water proton magnetization subject to diffusion-encoding magnetic field gradient pulses in a heterogeneous medium can be modeled by the multiple compartment Bloch-To
- Chest X-ray Dose Equivalent Low-dose CT with Tin Filtration: Potential Role for the Assessment of Pectus ExcavatumPublication date: Available online 28 August 2019Source: Academic RadiologyAuthor(s): Olivia Messerli-Odermatt, Bettina Serrallach, Manuel Gubser, Sebastian Leschka, Ralf W. Bauer, Josée Dubois, Hatem Alkadhi, Simon Wildermuth, Stephan L. WaeltiRationale and ObjectivesTo determine the value of chest CT with tin filtration applying a dose equivalent to chest x-ray for the assessment of the Haller index for evaluation of pectus excavatum.Ma
- Confronting the US's Highly Uneven State-by-State Distribution of Diagnostic Radiology Residency PositionsPublication date: Available online 27 August 2019Source: Academic RadiologyAuthor(s): Mohsin Mukhtar, Korbin Davis, Aaron P. Kamer, Richard B. Gunderman
- Ventilation Heterogeneity and Its Association with Nodule Formation Among Participants in the National Lung Screening Trial—A Preliminary InvestigationPublication date: Available online 27 August 2019Source: Academic RadiologyAuthor(s): David A. Kaminsky, Nirav Daphtary, Raul S.J. Estepar, Taka Ashikaga, Lukas Mikulic, Jeffrey Klein, C. Matthew KinseyRationale and ObjectivesWe have developed a technique to measure ventilation heterogeneity (VH) on low dose chest CT scan that we hypothesize may be associated with the development of lung nodules, and perhaps cancer. If true, such an analysis may
- Quantitative Improvement in Brain Tumor MRI Through Structured Reporting (BT-RADS)Publication date: Available online 27 August 2019Source: Academic RadiologyAuthor(s): James Y. Zhang, Brent D. Weinberg, Ranliang Hu, Amit Saindane, Mark Mullins, Jason Allen, Michael J. HochRationale and ObjectivesDetermine the objective benefits of structured reporting of brain tumors through Brain tumor-RADS (BT-RADS) by analyzing discrete quantifiable metrics of the reports themselves.Materials and MethodsFollowing Institutional Review Board
- Magnetic Resonance Imaging and Freehand 3-D Ultrasound Provide Similar Estimates of Free Achilles Tendon Shape and 3-D GeometryPublication date: Available online 27 August 2019Source: Ultrasound in Medicine & BiologyAuthor(s): Daniel Devaprakash, David G. Lloyd, Rod S. Barrett, Steven J. Obst, Ben Kennedy, Kahlee L. Adams, Adam Hunter, Nicole Vlahovich, David L. Pease, Claudio PizzolatoAbstractThe purpose of this study was to assess the similarity of free Achilles tendon shape and 3-D geometry between magnetic resonance imaging (MRI) and freehand 3-D ultrasound (3-D
- Endovascular treatment in patients with large vessel occlusion: reduced mortality despite minimal penumbraAbstract Purpose In patients with acute ischemic stroke (AIS) caused by large vessel occlusion (LVO), endovascular treatment (EVT) is highly effective for emergency revascularization. However, data on functional outcome are lacking for patients, which show no or minimal mismatch between ischemic core and penumbra. Methods
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