TY - JOUR
T1 - Molecular Imaging of Pulmonary Tuberculosis in an Ex-Vivo Mouse Model Using Spectral Photon-Counting Computed Tomography and Micro-CT
AU - Lowe, Chiara
AU - Ortega-Gil, Ana
AU - Moghiseh, Mahdieh
AU - Anderson, Nigel G.
AU - Munoz-Barrutia, Arrate
AU - Vaquero, Juan Jose
AU - Raja, Aamir Y.
AU - Matanaghi, Aysouda
AU - Chernoglazov, Alexander I.
AU - Dapamede, Theodorus
AU - Adebileje, Sikiru A.
AU - Alexander, Steven
AU - Amma, Maya R.
AU - Anjomrouz, Marzieh
AU - Asghariomabad, Fatemeh
AU - Atharifard, Ali
AU - Atlas, James
AU - Baer, Kenzie
AU - Bell, Stephen T.
AU - Bheesette, Srinidhi
AU - Butler, Philip H.
AU - Carbonez, Pierre
AU - Chambers, Claire
AU - Chapagain, Krishna M.
AU - Clark, Jennifer A.
AU - Colgan, Frances
AU - Crighton, Jonathan S.
AU - Dahal, Shishir
AU - Damet, Jerome
AU - De Ruiter, Niels J.A.
AU - Doesburg, Robert M.N.
AU - Duncan, Neryda
AU - Ghodsian, Nooshin
AU - Gieseg, Steven P.
AU - Goulter, Brian P.
AU - Gurney, Sam
AU - Healy, Joseph L.
AU - Kanithi, Praveen Kumar
AU - Kirkbride, Tracy
AU - Lansley, Stuart P.
AU - Mandalika, V. B.H.
AU - Marfo, Emmanuel
AU - Palmer, David
AU - Panta, Raj K.
AU - Prebble, Hannah M.
AU - Renaud, Peter
AU - Sayous, Yann
AU - Schleich, Nanette
AU - Searle, Emily
AU - Sheeja, Jereena S.
AU - Broeke, Lieza Vanden
AU - Vivek, V. S.
AU - Walker, E. Peter
AU - Walsh, Michael F.
AU - Wijesooriya, Manoj
AU - Younger, W. Ross
AU - Butler, Anthony P.H.
N1 - Funding Information:
This work was supported in part by the Ministry of Business, Innovation and Employment (MBIE), New Zealand, under Contract UOCX1404, in part by MARS Bioimaging Ltd., in part by the Ministry of Education through the MedTech CoRE, in part by the University of Otago, in part by the Instituto de Salud Carlos III (Plan Estatal de I+D+i 2013–2016), in part by the European Social Fund (ESF) (ESF investing in your future), in part by the Innovative Medicines Initiative Joint Undertaking through the European Union Seventh Framework Program (FP7/2007–2013) under Grant 115337 and Grant 853989, in part by the European Federation of Pharmaceutical Industries and Associations (EFPIA) Companies, in part by the Spanish Ministry of Economy under Project TEC2016-78052-R, and in part by the Spanish Ministry of Science and Innovation under Grant PID2019-109820RB-I00.
Publisher Copyright:
© 2013 IEEE.
PY - 2021
Y1 - 2021
N2 - Assessment of disease burden and drug efficacy is achieved preclinically using high resolution micro computed tomography (CT). However, micro-CT is not applicable to clinical human imaging due to operating at high dose. In addition, the technology differences between micro-CT and standard clinical CT prevent direct translation of preclinical applications. The current proof-of-concept study presents spectral photon-counting CT as a clinically translatable, molecular imaging tool by assessing contrast uptake in an ex-vivo mouse model of pulmonary tuberculosis (TB). Iodine, a common contrast used in clinical CT imaging, was introduced into a murine model of TB. The excised mouse lungs were imaged using a standard micro-CT subsystem (SuperArgus) and the contrast enhanced TB lesions quantified. The same lungs were imaged using a spectral photoncounting CT system (MARS small-bore scanner). Iodine and soft tissues (water and lipid) were materially separated, and iodine uptake quantified. The volume of the TB infection quantified by spectral CT and micro-CT was found to be 2.96 mm3 and 2.83 mm3, respectively. This proof-of-concept study showed that spectral photon-counting CT could be used as a predictive preclinical imaging tool for the purpose of facilitating drug discovery and development. Also, as this imaging modality is available for human trials, all applications are translatable to human imaging. In conclusion, spectral photon-counting CT could accelerate a deeper understanding of infectious lung diseases using targeted pharmaceuticals and intrinsic markers, and ultimately improve the efficacy of therapies by measuring drug delivery and response to treatment in animal models and later in humans.
AB - Assessment of disease burden and drug efficacy is achieved preclinically using high resolution micro computed tomography (CT). However, micro-CT is not applicable to clinical human imaging due to operating at high dose. In addition, the technology differences between micro-CT and standard clinical CT prevent direct translation of preclinical applications. The current proof-of-concept study presents spectral photon-counting CT as a clinically translatable, molecular imaging tool by assessing contrast uptake in an ex-vivo mouse model of pulmonary tuberculosis (TB). Iodine, a common contrast used in clinical CT imaging, was introduced into a murine model of TB. The excised mouse lungs were imaged using a standard micro-CT subsystem (SuperArgus) and the contrast enhanced TB lesions quantified. The same lungs were imaged using a spectral photoncounting CT system (MARS small-bore scanner). Iodine and soft tissues (water and lipid) were materially separated, and iodine uptake quantified. The volume of the TB infection quantified by spectral CT and micro-CT was found to be 2.96 mm3 and 2.83 mm3, respectively. This proof-of-concept study showed that spectral photon-counting CT could be used as a predictive preclinical imaging tool for the purpose of facilitating drug discovery and development. Also, as this imaging modality is available for human trials, all applications are translatable to human imaging. In conclusion, spectral photon-counting CT could accelerate a deeper understanding of infectious lung diseases using targeted pharmaceuticals and intrinsic markers, and ultimately improve the efficacy of therapies by measuring drug delivery and response to treatment in animal models and later in humans.
KW - High resolution
KW - micro-CT
KW - photon-counting spectral CT
KW - pulmonary tuberculosis
KW - translatable molecular imaging
UR - http://www.scopus.com/inward/record.url?scp=85105113980&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2021.3076432
DO - 10.1109/ACCESS.2021.3076432
M3 - Article
AN - SCOPUS:85105113980
SN - 2169-3536
VL - 9
SP - 67201
EP - 67208
JO - IEEE Access
JF - IEEE Access
M1 - 9419038
ER -