Department of Neurology
Patient Care
Department Facts
Dr. Nerissa U. KoNerissa U. Ko, MD, MAS

Associate Professor of Clinical Neurology
Assistant Director, UCSF Neurovascular Service


Phone: 415-353-8897
Fax: 415-353-8705
Box #: 0114

Dr. Nerissa Ko is neurointensivist, a neurologist with specialized training in the care of patients in the intensive care unit with neurological diseases. She also has specialty training to care for patients with cerebrovascular diseases. Dr. Ko earned her medical degree at John A. Burns School of Medicine at the University of Hawaii, and completed a residency in neurology, followed by fellowships in neurocritical care and vascular neurology at UCSF. She is board certified in both vascular neurology and neurocritical care. In 2002, she joined the UCSF Neurovascular Service, where she is now assistant director and a principle attending at Moffitt-Long hospitals.

Dr. Ko sees patients for consultation on an outpatient basis as well for stroke and complex vascular diseases such as brain aneurysms and arteriovenous malformations.

Dr. Ko's research interests include:

KO NU, Achrol AS, Martin AJ. Chopra M, Saloner DA, Higashida RT, Young WL. Magnetic resonance perfusion tracks 133-xenon cerebral blood flow changes after carotid stenting. Stroke 2005; 36:676-678.

KO NU, Achrol AS, Chopra M, Saha M, Gupta D, Smith WS, Higashida RT, Young WL. Cerebral blood flow changes after endovascular treatment of cerebrovascular stenoses. AJNR Am J Neuroradiol 2005; 26: 538-542.

Wintermark M, KO NU, Smith WS, Liu S, Higashida RT, Dillon WP. Vasospasm after subarachnoid hemorrhage: utility of perfusion CT and CT angiography on diagnosis and management. AJNR Am J Neuroradiol 2006; 1:26-34.

Chaudhary SR, KO NU, Dillon W, Yu M, Liu S, Criqui GI, Higashida RT, Smith WS, Wintermark M. Prospective Evaluation of Multidetector-Row CT-Angiography for the Diagnosis of Vasospasm Following Subarachnoid Hemorrhage: a Comparison with Digital Subtraction Angiography. Cerebrovascular Dis 2008;25:144-50.

KO NU, Rajendren P, Rutkowski M, Pawlikowska L, Zaroff JG, Kwok PY, Young WL. Endothelial nitric oxide synthase polymorphisms and risk of cerebral vasospasm after aneurysmal subarachnoid hemorrhage. Stroke 2008; 39:1103-8.

Link to publications on PubMed


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