faculty photo

Felix Werner Wehrli, PhD

Professor of Radiologic Science in Radiology
Department: Radiology

Contact information
University of Pennsylvania
Perelman School of Medicine
Department of Radiology
MRI Education Center
First Floor Founders Building
3400 Spruce Street
Philadelphia, PA 19104-4283
Office: (215) 662-7951
Fax: (215) 662-7263
Lab: (215) 349-8519
Education:
MS (Chemistry)
Swiss Federal Institute of Technology , 1967.
PhD (Chemistry)
Swiss Federal Institute of Technology, 1970.
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Description of Research Expertise

Research of the Laboratory for Structural, Physiologic and Functional Imaging (LSPFI) is aimed at quantitatively characterizing tissue properties and their relationship to physiology and function by means of spatially resolved magnetic resonance in humans.

Current research is focused on development of novel image-based quantitative methods for the study of tissue oxygen metabolism at enhanced temporal and spatial resolution, and their application to the study of degenerative and acquired vascular disease of the brain and other organ systems. A related area of concentration is development of technology for the evaluation of preclinical vascular disease allowing quantification of markers of endothelial dysfunction in the systemic circulation. Applications of these methods currently in progress target the peripheral, central and neurovascular system in subjects exposed to e-cigarette aerosol inhalation, subjects affected by various lifestyle related conditions, and in patients with sleep disorders. Other ongoing projects target development of new techniques for the study of bone matrix and mineral properties applied to the evaluation and treatment of degenerative bone disease, the conception of methods for constructing cranial models as surgical aids, and assessment of metabolic and degenerative skeletal disorders by means of image-based computational biomechanics with the longer-term goal of creating orthopedic applications, including patient-specific hip fracture prediction involving generation of high-resolution 3D anatomical models.

Selected Publications

Jaroszynski KM, Lee H, Langham MC, Wehrli FW.: Comparison of brain oxygen metabolic parameters between constrained qBOLD and whole-brain oximetric methods at baseline and in response to a physiologic stimulus. NMR Biomed 38(9), Sept 2025.

Kamona N, Langham MC, Deshpande RS, Vu BD, Hosseini M, Dennison J, Jaroszynski KM, Wehrli FW.: MRI-based quantification of whole-organ renal metabolic rate of oxygen during free-breathing. Magn Reson Med May 2025.

Dennison JB, Langham MC, Wiemken AS, Xu J, Schwab RJ, Detre JA, Wehrli FW.: Concurrent evaluation of cerebral oxygen metabolism and upper airway architecture via temporally resolved MRI. J Cereb Blood Flow Metab May 2025.

Kamona N, Ng JJ, Kim Y, D Vu BT, Vossough A, Wagner CS, Cordray H, Lee H, Villavisanis DF, Rajapakse CS, Bartlett SP, Wehrli FW. : Craniofacial imaging of pediatric patients by ultrashort echo-time bone-selective MRI in comparison to CT. Acad Radiol. Page: S1076-6332, Sep 2024.

Vu BD, Kamona N, Kim Y, Ng JJ, Jones BC, Wehrli FW, Song HK, Bartlett SP, Lee H, Rajapakse CS. : Three contrasts in 3 min: rapid, high-resolution, and bone-selective UTE MRI for craniofacial imaging with automated deep-learning skull segmentation. Magn Reson Med. Sep 2024.

Lee H, Xu J, Fernandez-Seara MA, Wehrli FW.: Validation of a new 3D quantitative BOLD based cerebral oxygen extraction mapping. J Cereb Blood Flow Metab 44(7): 1184-1198, Jul 2024.

Schwab RJ, Lin TC, Wiemken A, Dedhia RC, Wehrli FW, Keenan BT.: State-dependent biomechanical behavior of oropharyngeal structures in apneics and controls: a proof-of-concept study. Ann Am Thorac Soc. 21(6): 949-960, Jun 2024.

Deshpande RS, Langham MC, Lee H, Kamona N, Wehrli FW. : Quantification of whole-organ individual and bilateral renal metabolic rate of oxygen. Magn Reson Med. 91(5): 2057-2073, May 2024.

Nabbout M, Langham MC, Cottrell C, Wehrli FW. : Quantification of neurovascular compliance with retrospectively gated phase-contrast MRI. MAGMA 37(2): 307-314, Apr 2024.

Xu J, Wiemken A, Langham MC, Rao H, Nabbout M, Caporale AS, Schwab RJ, Detre JA, Wehrli FW. : Sleep‐stage‐dependent alterations in cerebral oxygen metabolism quantified by magnetic resonance. J Neurosci Res. 102(3): e25313, Mar 2024.

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Last updated: 08/27/2025
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