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![John Karis, MD](https://www.barrowneuro.org/wp-content/uploads/Karis_John-150624-1-600x600.jpg)
John P. Karis, MD, is director of MRI and brain imaging for the Department of Neuroradiology at Barrow Neurological Institute, Dignity Health St. Joseph’s Hospital and MedicalCenter. Dr. Karis is board certified by the American Board of Radiology.
Dr. Karis is a member of the Radiology Society of North America, the American Society of Neuroradiology, the American College of Radiology, and the International Society of Magnetic Resonance in Medicine.
Dr. Karis received his medical degree from Duke University in Durham, N.C. and completed his internship from North Carolina Memorial Hospital. He completed his residency at Duke University where he became Chief Resident and completed his fellowship at Barrow Neurological Institute.
- Fellowship, Barrow Neurological Institute, Neuroradiology, 1992-1994
- Residency, Duke University, Diagnostic Radiology, 1988-1992
- Internship, North Carolina Memorial Hospital, 1987-1988
- MD, Duke University, 1987
- BSE, Princeton University, Electrical Engineering, Computer Science, 1983
- American College of Radiology
- American Society of Neuroradiology
- International Society of Magnetic Resonance in Medicine
- Radiology Society of North America
- Western Neuroradiology Society
- National Science and Humanities Scholarship Winner
- Westinghouse Science Talent Search Scholarship Winner
- Princeton University John Ogden Bigelow Prize Winner in Electrical Engineering
- American Society of Neuroradiology Research Berlex Fellowship Grant Winner
A 3D dual-echo spiral sequence for simultaneous dynamic susceptibility contrast and dynamic contrast-enhanced MRI with single bolus injection.
Date: 08/2024
Authors: Zhiqiang Li, Dinghui Wang, Melvyn B Ooi, Poonam Choudhary, Sudarshan Ragunathan, John P Karis, James G Pipe, C Chad Quarles, Ashley M. Stokes
GTP signaling links metabolism, DNA repair, and responses to genotoxic stress
Date: 04/2023
Authors: Weihua Zhou, Zitong Zhao, Angelica Lin, John Yang, Jie Xu, Wilder-Romans Kari, Annabel Yang, Jing Li, Sumeet Solanki, Jennifer Speth, Natalie Walker, Andrew J. Scott, Ayesha U. Kothari, Yangyang Yao, Erik R. Peterson, Navyateja Korimerla, Christian K. Werner, Jessica Liang, Janna Jacobson, Sravya Palavalasa, Alexandra M. Obrien, Ameer L. Elaimy, Sean P. Ferris, Shuang G. Zhao, Jann N. Sarkaria, Balázs Győrffy, Shuqun Zhang, Wajd N. Al-Holou, Yoshie Umemura, Meredith A. Morgan, Theodore S. Lawrence, Costas A. Lyssiotis
Low-Dose Whole Brain Radiation Therapy for Alzheimer's Dementia: Results From a Pilot Trial in Humans
Date: 03/2023
Authors: C Leland Rogers, Sarah K. Lageman, James Fontanesi, George D. Wilson, Peter A. Boling, Surbhi Bansal, John P. Karis, J. P. Karis, John P Karis, Marwan Sabbagh, Minesh P. Mehta, Timothy J. Harris
Rapid whole-brain myelin imaging with selective inversion recovery and compressed SENSE
Date: 03/2023
Authors: Ping Wang, Nicholas Sisco, Wonsuk Yoo, Aimee Borazanci, John Karis, J. P. Karis, John P Karis, Richard Dortch
Identification of single-dose, dual-echo based CBV threshold for fractional tumor burden mapping in recurrent glioblastoma
Date: 01/2023
Authors: Aliya Anil, Ashley M. Stokes, Renee Chao, Leland S. Hu, Lea Alhilali, Lea M Alhilali, John P. Karis, J. P. Karis, John P Karis, Laura C. Bell, C Chad Quarles
- English
![](https://www.barrowneuro.org/wp-content/uploads/main-hospital-entrance-1120x600.png)
![John Karis, MD](https://www.barrowneuro.org/wp-content/uploads/Karis_John-150624-1-600x600.jpg)
John P. Karis, MD, is director of MRI and brain imaging for the Department of Neuroradiology at Barrow Neurological Institute, Dignity Health St. Joseph’s Hospital and MedicalCenter. Dr. Karis is board certified by the American Board of Radiology.
Dr. Karis is a member of the Radiology Society of North America, the American Society of Neuroradiology, the American College of Radiology, and the International Society of Magnetic Resonance in Medicine.
Dr. Karis received his medical degree from Duke University in Durham, N.C. and completed his internship from North Carolina Memorial Hospital. He completed his residency at Duke University where he became Chief Resident and completed his fellowship at Barrow Neurological Institute.
![](https://www.barrowneuro.org/wp-content/uploads/main-hospital-entrance-1120x600.png)
- Fellowship, Barrow Neurological Institute, Neuroradiology, 1992-1994
- Residency, Duke University, Diagnostic Radiology, 1988-1992
- Internship, North Carolina Memorial Hospital, 1987-1988
- MD, Duke University, 1987
- BSE, Princeton University, Electrical Engineering, Computer Science, 1983
- American College of Radiology
- American Society of Neuroradiology
- International Society of Magnetic Resonance in Medicine
- Radiology Society of North America
- Western Neuroradiology Society
- National Science and Humanities Scholarship Winner
- Westinghouse Science Talent Search Scholarship Winner
- Princeton University John Ogden Bigelow Prize Winner in Electrical Engineering
- American Society of Neuroradiology Research Berlex Fellowship Grant Winner
A 3D dual-echo spiral sequence for simultaneous dynamic susceptibility contrast and dynamic contrast-enhanced MRI with single bolus injection.
Date: 08/2024
Authors: Zhiqiang Li, Dinghui Wang, Melvyn B Ooi, Poonam Choudhary, Sudarshan Ragunathan, John P Karis, James G Pipe, C Chad Quarles, Ashley M. Stokes
GTP signaling links metabolism, DNA repair, and responses to genotoxic stress
Date: 04/2023
Authors: Weihua Zhou, Zitong Zhao, Angelica Lin, John Yang, Jie Xu, Wilder-Romans Kari, Annabel Yang, Jing Li, Sumeet Solanki, Jennifer Speth, Natalie Walker, Andrew J. Scott, Ayesha U. Kothari, Yangyang Yao, Erik R. Peterson, Navyateja Korimerla, Christian K. Werner, Jessica Liang, Janna Jacobson, Sravya Palavalasa, Alexandra M. Obrien, Ameer L. Elaimy, Sean P. Ferris, Shuang G. Zhao, Jann N. Sarkaria, Balázs Győrffy, Shuqun Zhang, Wajd N. Al-Holou, Yoshie Umemura, Meredith A. Morgan, Theodore S. Lawrence, Costas A. Lyssiotis
Low-Dose Whole Brain Radiation Therapy for Alzheimer's Dementia: Results From a Pilot Trial in Humans
Date: 03/2023
Authors: C Leland Rogers, Sarah K. Lageman, James Fontanesi, George D. Wilson, Peter A. Boling, Surbhi Bansal, John P. Karis, J. P. Karis, John P Karis, Marwan Sabbagh, Minesh P. Mehta, Timothy J. Harris
Rapid whole-brain myelin imaging with selective inversion recovery and compressed SENSE
Date: 03/2023
Authors: Ping Wang, Nicholas Sisco, Wonsuk Yoo, Aimee Borazanci, John Karis, J. P. Karis, John P Karis, Richard Dortch
Identification of single-dose, dual-echo based CBV threshold for fractional tumor burden mapping in recurrent glioblastoma
Date: 01/2023
Authors: Aliya Anil, Ashley M. Stokes, Renee Chao, Leland S. Hu, Lea Alhilali, Lea M Alhilali, John P. Karis, J. P. Karis, John P Karis, Laura C. Bell, C Chad Quarles
- English