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Found 4 clinical trials
Rapid Ventricular Pacing During Cerebral Aneurysm Surgery: a Study Concerning the Safety for Heart and Brain

Rapid ventricular pacing (RVP) is a technique to obtain flow arrest for short periods of time during dissection or rupture of the aneurysm. RVP results in an adequate fall in blood pressure which presents as an on-off phenomenon. However it is not clear whether repetitive periods of pacing are harmless …

aneurysm clipping
  • 27 Jan, 2021
  • 1 location
Study of New Magnetic Resonance Imaging Methods of the Brain

The purpose of this investigation is to develop improved magnetic resonance imaging (MRI) techniques and hardware for studying brain function. MRI is a diagnostic tool that provides information about brain chemistry and physiology. This study will evaluate new MRI methods for monitoring blood flow to regions of the brain in …

  • 11 Sep, 2021
  • 1 location
A Longitudinal Investigation of the Endocrine and Neurobiologic Events Accompanying Puberty

Despite the clear importance of adolescence in the emergence of a number of disease states and processes, there is surprisingly little known about how the endocrine and metabolic events accompanying puberty in humans impact normal developmental neurobiology. Epidemiologic studies have identified sexual dimorphisms in the prevalence of several neuropsychiatric disorders, …

  • 12 Sep, 2021
  • 1 location
Estimating Brain Biomechanics Using MRI

Objective: In this study we will develop and apply imaging techniques to perform the first three-dimensional (3-D) measurements of brain biomechanics during mild head movement in healthy human subjects. Biomechanics is the application of mechanics, or the physical principles in action when force is applied to an object, to the …

head up
imaging techniques
  • 15 Jun, 2021
  • 1 location