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Keith St Lawrence

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Associate ProfessorDepartment of Medical BiophysicsWestern University

Keith St Lawrence

Associate Professor

Department of Medical Biophysics

Schulich School of Medicine & Dentistry

Western University

London, Ontario, Canada

Supervision signals

Professors usually supervise graduate students in their department's programs.
26 publications in the last five years, latest in 2026.
Senior (last) author on 13 recent papers, a sign of leading a research group.
Principal investigator on 15 research grants (10 CIHR, 5 NSERC), most recently in 2021.
Supervised 4 trainees who won CIHR awards, most recently in 2026.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

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Publications

Citations

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Collaborators

Grants

Publications by year

Counts cover the works listed on the university profile; citation counts come from Dimensions.

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Signals and details

Research

Read how they describe their research on their Western University profile.

Neuromonitoring Cerebral Blood Flow Positron Emission Tomography Cerebral Energy Metabolism Biomedical Optics Cerebral Ischemia Near-Infrared Spectroscopy Functional Magnetic Resonance Imaging

Latest papers

Cerebral Hemodynamic and Metabolic Responses to Anesthesia and Vasopressors in Adult Shoulder Surgery: A 2 × 2 Factorial Design Randomized Controlled Trial with Light-based Neuromonitoring (CHEM-FACT Study).
Anesthesiology · 2026
A reference-based PET/MRI method for quantifying activation-induced changes in cerebral oxygen metabolism.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026 · senior author
Reproducibility of a time-resolved NIRS, multidistance diffuse correlation spectroscopy system: towards noninvasive longitudinal neuromonitoring.
Neurophotonics · 2026 · senior author

All 82 publications

Latest funding

Toward Non-invasive Detection of Cortical Spreading Depolarizations for Early Identification of Secondary Brain Injury.
CIHR · 2026 · Supervisor
$9,000
Can a non-invasive optical technology detect early signs of cerebral ischemia in subarachnoid hemorrhage patients?
CIHR · 2024 · Supervisor
$120,000
Fetal growth restriction and preterm birth: placental, fetal and neonatal imaging and developmental outcomes
CIHR · 2023 · Co-investigator
$688,500

All 27 grants and awards

82 publications.

Cerebral Hemodynamic and Metabolic Responses to Anesthesia and Vasopressors in Adult Shoulder Surgery: A 2 × 2 Factorial Design Randomized Controlled Trial with Light-based Neuromonitoring (CHEM-FACT Study).

Samaei S, Shoemaker L, Kamar F, Milej D, Drosdowech D, Murkin JM, Diop M, St Lawrence K, Chui J

Anesthesiology2026

DOI: 10.1097/aln.0000000000006239 PMID: 42479502

A reference-based PET/MRI method for quantifying activation-induced changes in cerebral oxygen metabolism.

Deller G, Liu L, Hicks JW, Narciso L, Wehrli FW, Jaroszynski K, Langham MC, St Lawrence K

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2026Senior author

DOI: 10.1177/0271678x261431050 PMID: 41834446

Reproducibility of a time-resolved NIRS, multidistance diffuse correlation spectroscopy system: towards noninvasive longitudinal neuromonitoring.

Kamar F, Shoemaker LN, Samaei S, Milej D, Diop M, St Lawrence K

Neurophotonics2026Senior author

DOI: 10.1117/1.nph.13.1.015016 PMID: 41835194

Noninvasive estimation of superficial layer thickness using multi-channel diffuse correlation spectroscopy.

Samaei S, Milej D, St Lawrence K

Biomedical optics express2025Senior author

DOI: 10.1364/boe.571299 PMID: 41394498

The Effect of Hypotension on Cerebral Metabolism and Perfusion in Adults Undergoing Cardiopulmonary Bypass: A Prospective Cohort Study.

Suwalski M, Milej D, Mousseau JP, Rajaram A, Diop M, Murkin J, St Lawrence K, Chui J

Anesthesia and analgesia2025

DOI: 10.1213/ane.0000000000007607 PMID: 40549570

Disrupted Coupling Between Cerebral Glucose Metabolism and Intrinsic Functional Connectivity: A Hybrid PET/fMRI Study on Frontotemporal Dementia.

Joshy M, Liu L, Dassanayake P, Aiello M, Di Cecca A, Cavaliere C, Anazodo U, Finger E, St Lawrence K

Human brain mapping2025Senior author

DOI: 10.1002/hbm.70388 PMID: 41128402

Quantification of oxidized and reduced cytochrome-c-oxidase by combining discrete-wavelength time-resolved and broadband continuous-wave near-infrared spectroscopy.

Eskandari R, Li NC, Samaei S, Milej D, St Lawrence K, Diop M

Biomedical optics express2025

DOI: 10.1364/boe.567105 PMID: 41368101

Two paths to one destination: altered low-frequency oscillations of cerebral perfusion and oxygenation but not oxygen metabolism in mild cognitive impairment.

Shoemaker LN, Kamar F, Milej D, Fitzgibbon-Collins L, Eskandari R, Bhangu J, Shoemaker JK, St Lawrence K

Journal of applied physiology (Bethesda, Md. : 1985)2025Senior author

DOI: 10.1152/japplphysiol.00884.2024 PMID: 40234388

Blood pressure in human large cerebral arteries: a feasibility study.

Shoemaker LN, Matern T, Kamar F, St Lawrence K, Ortega-Gutierrez S, Zanaty M, Shoemaker JK

Journal of applied physiology (Bethesda, Md. : 1985)2025

DOI: 10.1152/japplphysiol.00825.2024 PMID: 39918464

Predicting cortical-thalamic functional connectivity using functional near-infrared spectroscopy and graph convolutional networks.

Tang L, Kebaya LMN, Vahidi H, Meyerink P, de Ribaupierre S, Bhattacharya S, St Lawrence K, Duerden EG

Scientific reports2024

DOI: 10.1038/s41598-024-79390-3 PMID: 39616218

Toward Non-invasive Detection of Cortical Spreading Depolarizations for Early Identification of Secondary Brain Injury.

SupervisorCIHR2026CRTAS - Research Travel Supplements

Principal investigators: Kamar, Farah A

Keywords: Brain In Jury; Cortical

$9,000

Can a non-invasive optical technology detect early signs of cerebral ischemia in subarachnoid hemorrhage patients?

SupervisorCIHR2024Doctoral Research Award: Canada Graduate Scholarships

Principal investigators: Kamar, Farah A

Keywords: Brain Injury; Cerebral Blood Flow; Computed Tomography; Critical Care; Diffuse Correlation Spectroscopy; Microcirculation; Near Infrared Spectroscopy; Noninvasive Monitoring; Oxygen Metabolism; Stroke

$120,000

Fetal growth restriction and preterm birth: placental, fetal and neonatal imaging and developmental outcomes

Co-investigatorCIHR2023Project Grant

Principal investigators: Duerden, Emma; De Ribaupierre, Sandrine

Keywords: Brain Development; Developmental Outcomes; Fetal Growth Restriction; Functional Connectivity; Magnetic Resonance Imaging; Near Infrared Spectroscopy; Neuroplacentology; Placental Dysfunction; Preterm Birth; T2* Relaxation

$688,500

Does Impaired Cerebral Metabolism Link Vascular Dysfunction to Cognitive Decline?

Nominated PICIHR2021Project Grant

Principal investigators: St. Lawrence, Keith S

Keywords: Cerebral Energy Metabolism; Functional Magnetic Resonance Imaging; Hybrid Imaging; Neurodegeneration; Positron Emission Tomography; Vascular Health

$612,000

Functional near infrared spectroscopy (fNIRS) and the developing brain

Co-investigatorNSERC2021Research Tools and Instruments

Principal investigators: Duerden, Emma

$79,071

Development of a non-invasive optical device to guide individualized neurointensive care

Nominated PICIHR2020Project Grant

Principal investigators: St. Lawrence, Keith S

Keywords: Acute Brain Injury; Biomedical Optics; Cerebral Energy Metabolism; Cerebral Ischemia; Cerebral Metabolic Dysfunction; Cerebral Perfusion; Near-Infrared Spectroscopy; Neurointensive Care; Neuromonitoring

$631,125

Developing BBB-ASL as non-invasive early biomarker of Alzheimer's disease (DEBBIE)

Co-investigatorCIHR2020Operating Grant: Joint Programme on Neurodegenerative Disease Research (JPND)

Principal investigators: Anazodo, Udunna C

Keywords: Alzheimer'S Disease; Arterial Spin Labeling; Biomarker; Blood Brain Barrier; Dementia; Pet; Physiological Mri; Vessel Integrity

$326,847

Optimizing preterm delivery time: brain health & neurodevelopmental outcomes

Co-investigatorCIHR2019Operating Grant: ECI grants in Maternal, Reproductive, Child & Youth Health

Principal investigators: Duerden, Emma

Keywords: Brain Injury; Cerebral Metabolism; Cognition; Development; Diffusion Tensor Imaging; Fetal Growth Restriction; Magnetic Resonance Imaging; Motor; Preterm; White Matter

$105,000

Studying Dynamic Blood Flow/Metabolism Regulation in the Brain

Principal investigatorNSERC2018Discovery Grants Program - Individual

Principal investigators: StLawrence, Keith

$300,000

Role of Perfusion MRI in Improving Diagnosis of Frontotemporal Dementia and Monitoring of Disease Progression

SupervisorCIHR2017Doctoral Award - Frederick Banting and Charles Best Canada Graduate Scholarships

Principal investigators: Ssali, Tracy

Keywords: Arterial Spin Labeling (Asl); Frontotemporal Dementia (Ftd); Hybrid Pet/Mr Imaging; Longitudinal Monitoring; Magnetic Resonance Imaging (Mri); Positron Emission Tomography (Pet)

$105,000

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2021

Subject: Prospective PhD student: Neuromonitoring Dear Professor St Lawrence, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Cerebral Hemodynamic and Metabolic Responses to Anesthesia and Vasopressors in Adult Shoulder Surgery: A 2 × 2 Factorial Design Randomized Controlled Trial with Light-based Neuromonitoring (CHEM-FACT Study)." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "Does Impaired Cerebral Metabolism Link Vascular Dysfunction to Cognitive Decline?" (2021), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]

Profile data last refreshed on November 9, 2025 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Keith St Lawrence

Research

Latest papers

Latest funding

Cerebral Hemodynamic and Metabolic Responses to Anesthesia and Vasopressors in Adult Shoulder Surgery: A 2&#x2009;&#xd7;&#x2009;2 Factorial Design Randomized Controlled Trial with Light-based Neuromonitoring (CHEM-FACT Study).

A reference-based PET/MRI method for quantifying activation-induced changes in cerebral oxygen metabolism.

Reproducibility of a time-resolved NIRS, multidistance diffuse correlation spectroscopy system: towards noninvasive longitudinal neuromonitoring.

Noninvasive estimation of superficial layer thickness using multi-channel diffuse correlation spectroscopy.

The Effect of Hypotension on Cerebral Metabolism and Perfusion in Adults Undergoing Cardiopulmonary Bypass: A Prospective Cohort Study.

Disrupted Coupling Between Cerebral Glucose Metabolism and Intrinsic Functional Connectivity: A Hybrid PET/fMRI Study on Frontotemporal Dementia.

Quantification of oxidized and reduced cytochrome-c-oxidase by combining discrete-wavelength time-resolved and broadband continuous-wave near-infrared spectroscopy.

Two paths to one destination: altered low-frequency oscillations of cerebral perfusion and oxygenation but not oxygen metabolism in mild cognitive impairment.

Blood pressure in human large cerebral arteries: a feasibility study.

Predicting cortical-thalamic functional connectivity using functional near-infrared spectroscopy and graph convolutional networks.

Functional near infrared spectroscopy (fNIRS) and the developing brain

Studying Dynamic Blood Flow/Metabolism Regulation in the Brain

Frequent collaborators

Mamadou Diop

Ting-Yim Lee

Farah Kamar

Sandrine De Ribaupierre

Elizabeth Finger

Udunna Anazodo

Frank Prato

Darren Drosdowech

Victor Han

Pablo Rusjan

Miguel Arango

Collin Clarke

Patricia Morley-Forster

John Murkin

Neil Gelman

Teneille Gofton

Jonathan Thiessen

Christoph Licht

Frank Beier

Cerebral Hemodynamic and Metabolic Responses to Anesthesia and Vasopressors in Adult Shoulder Surgery: A 2 × 2 Factorial Design Randomized Controlled Trial with Light-based Neuromonitoring (CHEM-FACT Study).