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Meet the Cerebrovascular Team

Cerebrovascular team meeting

Cerebrovascular team meeting


Demetrius Lopes, MD
Demetrius Lopes, MD, director of neuroendovascular surgery at Rush University Medical Center, is highly skilled in neuroendovascular therapy, an innovative approach in treating brain and spinal cord diseases from inside the blood vessels.

Kiffon Keigher, RN, MSN, ACPN and Demetrius Lopes, MD

Kiffon Keigher, RN, MSN, ACPN
and Demetrius Lopes, MD

Lopes specializes in the revascularization of brain including the treatment of brain aneurysms, arteriovenous malformations, cerebral ischemia, stroke and the conditions leading to stroke. He has written many articles and chapters on various aspects of neuroendovasclar therapy, including carotid stenting.

Lopes began his medical education in 1987 at the Federal University of Rio Grande do Sul in Porto Alegre, Brazil. After completing his doctorate in medicine in 1993, he held a surgical internship at the University of Illinois and Cook County hospitals. In 1994, he accepted a residency in neurology at the Indiana University Medical Center, and in 1995 accepted a residency in neurological surgery at the State University of New York at Buffalo. He remained at SUNY-Buffalo, where he completed an endovascular fellowship. Lopes joined the medical staff of Rush University Medical Center in 2001.

webster-crowleyWebster Crowley, MD

Gender: Male

Neurological Surgery ( Primary Specialty )
Faculty Rank
Assistant Professor
Medical School:
George Washington University School of Medicine

Auckland City Hospital, New Zealand
University of Virginia Medical Center

Barrow Neurological Institute

Clinical Expertise
Angiogram, cerebral
Angioplasty and stenting, cervical carotid
Angioplasty and stenting, intracranial
Arteriovenous malformations
Brain aneurysm
Brain tumor
Carotid endarterectomy and stenting
Cerebrovascular disease
Coil embolization
Endovascular procedures
Endovascular/vascular neurosurgery
Intracerebral hemorrhage
Pseudotumor cerebri
Subarachnoid hemorrhage
Vascular malformations
Languages Spoken

No Foreign Language


Michael Chen, MD
Michael Chen, MD, is an experienced neurointerventionalist with an appointment as associate professor in neurology, neurosurgery and radiology. He received his medical degree in his home state at the University of Hawaii John A. Burns School of Medicine. His training includes a neurology residency at Yale-New Haven Hospital, a cerebrovascular disease fellowship at Harvard Medical School/Beth Israel Deaconess Medical Center, and an interventional neuroradiology fellowship at New York Presbyterian Hospital/Columbia College of Physicians and Surgeons. Chen’s practice focuses on minimally invasive treatments of brain and spinal cord vascular disease and he has personally treated hundreds of patients throughout the Midwest. He was awarded a 2012 Brain Aneurysm Foundation grant to study cerebral aneurysms in women. He has also led hospital initiatives that combine checklists and electronic medical records to further improve the quality of care for the patient with cerebrovascular disease. Chen was recently elected to serve on the Rush University Medical Staff Executive Committee.


Kiffon Keigher, RN, MSN, ACPN
Kiffon-KeigherKiffon Keigher is a nurse practitioner with many years experience in neurosurgery and neuroscience nursing.  She has been at Rush University Medical Center since 2003. She worked for seven years as a neuroscience ICU nurse before starting her career as an advanced practiced nurse. She completed both her BSN and MSN degree at Rush University. She has certification as an acute care nurse practitioner. She also holds certifications as a CNRN (certified neuroscience RN) and CCRN (certified critical care RN). She is BLS, ACLS, PALS and NIHSS certified.

She is published in the journals of Endovascular Today. She is a member of the American Association of Neuroscience Nurses, American Association of Critical Care Nurses, American Academy of Nurse Practitioners and Sigma Theta Tau.

Kiffon currently works primarily with Demetrius Lopes, MD.


Beth McLaughlin



Rory Breslin



Valerie Cooper


Magdalena (Lupe) Chavez-Sedlacek
Nora Aguirre


Bart Jacher
Carol Mcphaerson


George Patalinghug
Humberto Rodriguez
Matt Breeding
Jesika Palmer
Kari Anne Runtz
Pam Phipps
Nicole Barens


Ana Kisielente
Michele Strzelinski
Joel Delacruz
Kevin Deleon
Phil Slater
Joe Canino
Tiffany Kiefert

Cristine Arnold
Ronald Exford


Top and bottom images courtesy of Rush University Medical Center.