Imperial College London
Alternate

ProfessorMarkThursz

Faculty of Medicine, Department of Metabolism, Digestion and Reproduction

Professor of Hepatology. Head of Department
 
 
 
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Contact

 

+44 (0)20 3312 1903m.thursz

 
 
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Assistant

 

Ms Dawn Campbell +44 (0)20 3312 6454

 
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Location

 

Norfolk PlaceSt Mary's Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lett:2021:10.1364/boe.424252,
author = {Lett, A and Lim, A and Skinner, C and Maurice, J and Vergis, N and Darzi, A and Goldin, R and Thursz, M and Thompson, A},
doi = {10.1364/boe.424252},
journal = {Biomedical Optics Express},
pages = {4249--4264},
title = {Rapid, non-invasive measurement of gastric emptying rate using transcutaneous fluorescence spectroscopy},
url = {http://dx.doi.org/10.1364/boe.424252},
volume = {12},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Gastric emptying rate (GER) signifies the rate at which the stomach empties following ingestion of a meal and is relevant to a wide range of clinical conditions. GER also represents a rate limiting step in small intestinal absorption and so is widely assessed for research purposes. Despite the clinical and physiological importance of gastric emptying, methods used to measure GER possess a series of limitations (including being invasive, slow or unsuitable for certain patient populations). Here, we present a new technique based on transcutaneous (through-the-skin) fluorescence spectroscopy that is fast, non-invasive, and does not require the collection of samples or laboratory-based analysis. Thus, this approach has the potential to allow immediate reporting of clinical results. Using this new method, participants receive an oral dose of a fluorescent contrast agent and a wearable probe detects the uptake of the agent from the gut into the blood stream. Analysis of the resulting data then permits the calculation of GER. We compared our spectroscopic technique to the paracetamol absorption test (a clinically approved GER test) in a clinical study of 20 participants. Results demonstrated good agreement between the two approaches and, hence, the clear potential of transcutaneous fluorescence spectroscopy for clinical assessment of GER.
AU  - Lett,A
AU  - Lim,A
AU  - Skinner,C
AU  - Maurice,J
AU  - Vergis,N
AU  - Darzi,A
AU  - Goldin,R
AU  - Thursz,M
AU  - Thompson,A
DO  - 10.1364/boe.424252
EP  - 4264
PY  - 2021///
SN  - 2156-7085
SP  - 4249
TI  - Rapid, non-invasive measurement of gastric emptying rate using transcutaneous fluorescence spectroscopy
T2  - Biomedical Optics Express
UR  - http://dx.doi.org/10.1364/boe.424252
UR  - https://www.osapublishing.org/boe/fulltext.cfm?uri=boe-12-7-4249&id=452609
UR  - http://hdl.handle.net/10044/1/90366
VL  - 12
ER  -
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