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Lab Team

  • Principal Investigator

    Associate Professor Term; Staff Neurointensivist, Neuroscience Intensive Care Unit

    Nils Petersen obtained his medical degree and doctorate in neuroscience from Christian-Albrechts University in Kiel, Germany. He completed his residency in Neurology at Mount Sinai Hospital in New York, NY, where he also served as chief resident in his final year. He then went on to pursue fellowship training in Vascular Neurology at Columbia University and simultaneously completed a Masters degree in Patient-Oriented Research at the Mailman School of Public Health. He next completed fellowship in Neurocritical Care at Massachusetts General Hospital and also obtained certification in Neurovascular Ultrasound from the American Society of Neuroimaging.

    He has been recruited to Yale to design and implement a state-of-the-art Neurovascular Ultrasound Lab, which will be available for both patient services and research endeavors. His clinical and research interests are in using ultrasound and novel neuromonitoring modalities to better understand brain blood flow regulation. His ongoing clinical care of patients in the Neurologic Intensive Care Unit and Stroke Service continues to inspire his research pursuits, with the goal of improving patient outcomes and preventing neurologic worsening after acute ischemic stroke.

  • Postgraduate Associate

    Jessica graduated from Dartmouth where she majored in psychology and was a Senior Fellow researching adolescents’ attention to peripheral food cues using eye-tracking. In Dr. Petersen’s lab, she neuromonitors stroke patients at the bedside in the Neurosurgery ICU and works on the lab’s many research projects. She is excited to study the relationship between pre-hospital blood pressure and neurologic outcomes in patients who have suffered acute ischemic stroke. Hopefully, this research will help us find ways to reduce neurologic worsening in stroke patients.

  • Post-Graduate Research Associate

    After graduating from Yale with a degree in biochemistry, Sreeja began enrolling and monitoring patients in the Neuroscience ICU for several projects in the YCVL. Her work at the bedside was readily analyzed using custom MATLAB scripts and SPSS statistics. In particular, Sreeja was able to employ generalized estimating equations to approximate distinct blood pressure trajectories for patients undergoing endovascular thrombectomy for large-vessel occlusion ischemic stroke. She shared her findings at two large conferences and introduced the YCVL to new collaborators from across the country. During her year as a research associate, Sreeja was accepted to several medical schools and is extremely excited to attend Yale School of Medicine beginning August 2019.

  • Postgraduate Associate

    Cindy is a post-baccalaureate clinical research assistant under the mentorship of Dr. Petersen. She recently graduated from Yale College with a BS in Molecular, Cellular, & Developmental Biology ('19). During her undergraduate years, she conducted neuroscience research at the Vaccarino lab, using organoids to study the pathophysiology of autism spectrum disorder during early fetal development. Cindy also volunteered at Yale-New Haven Hospital in the pediatric neuroscience wing and at Benhaven School for students with developmental disorders. Outside of her academic pursuits, she was involved at the Asian American Cultural Center, where she was a member of the Asian American Students Alliance and served as a Peer Liaison to Asian and Asian American first-year students. Cindy is excited to be a part of Dr. Petersen's team and would love to talk to others who might share any interests!

  • Postgraduate Associate

    Ayush graduated from Johns Hopkins and is working as a post-graduate research associate for Dr. Petersen during his gap year. His role involves neuromonitoring stroke patients in the Neuroscience ICU and analyzing data using ICM+, MATLAB, and SPSS. He is currently studying the relationship between blood pressure variability and neurologic outcomes after endovascular thrombectomy for ischemic stroke.

  • Postgraduate Associate

    After graduating from Johns Hopkins University, Alex began working with Yale's Neurocritical Care and Emergency Neurology CORE research team where she manages clinical trials aimed at improving outcomes after acute brain injuries. Her interests in ischemic stroke and cerebral autoregulation led her to work on multiple projects within Dr. Nils Petersen in the YCVL. Currently, she is investigating predictors of prolonged recanalization during endovascular thrombectomy (EVT) and evaluating the relationship between pre-admission blood pressure, in-hospital blood pressure variability, and patient outcomes after EVT. Additionally, she is a member of the Kim Lab. In collaboration with Dr. Jennifer Kim, her work has focused on developing a predictive model for post-ischemic stroke epilepsy that includes patient demographics, stroke characteristics, and multimodal monitoring.