Magnetic Particle Imaging: An Emerging Modality with Prospects in Diagnosis, Targeting and Therapy of Cancer

Background: Magnetic Particle Imaging (MPI) is an emerging imaging modality for quantitative direct imaging of superparamagnetic iron oxide nanoparticles (SPION or SPIO). With different physics from MRI, MPI benefits from ideal image contrast with zero background tissue signal. This enables clear vi...

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Autores principales: Zhi Wei Tay, Prashant Chandrasekharan, Benjamin D. Fellows, Irati Rodrigo Arrizabalaga, Elaine Yu, Malini Olivo, Steven M. Conolly
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/f567e5ebee1c496c8386b691cec211ff
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spelling oai:doaj.org-article:f567e5ebee1c496c8386b691cec211ff2021-11-11T15:27:08ZMagnetic Particle Imaging: An Emerging Modality with Prospects in Diagnosis, Targeting and Therapy of Cancer10.3390/cancers132152852072-6694https://doaj.org/article/f567e5ebee1c496c8386b691cec211ff2021-10-01T00:00:00Zhttps://www.mdpi.com/2072-6694/13/21/5285https://doaj.org/toc/2072-6694Background: Magnetic Particle Imaging (MPI) is an emerging imaging modality for quantitative direct imaging of superparamagnetic iron oxide nanoparticles (SPION or SPIO). With different physics from MRI, MPI benefits from ideal image contrast with zero background tissue signal. This enables clear visualization of cancer with image characteristics similar to PET or SPECT, but using radiation-free magnetic nanoparticles instead, with infinite-duration reporter persistence in vivo. MPI for cancer imaging: demonstrated months of quantitative imaging of the cancer-related immune response with in situ SPION-labelling of immune cells (e.g., neutrophils, CAR T-cells). Because MPI suffers absolutely no susceptibility artifacts in the lung, immuno-MPI could soon provide completely noninvasive early-stage diagnosis and treatment monitoring of lung cancers. MPI for magnetic steering: MPI gradients are ~150 × stronger than MRI, enabling remote magnetic steering of magneto-aerosol, nanoparticles, and catheter tips, enhancing therapeutic delivery by magnetic means. MPI for precision therapy: gradients enable focusing of magnetic hyperthermia and magnetic-actuated drug release with up to 2 mm precision. The extent of drug release from the magnetic nanocarrier can be quantitatively monitored by MPI of SPION’s MPS spectral changes within the nanocarrier. Conclusion: MPI is a promising new magnetic modality spanning cancer imaging to guided-therapy.Zhi Wei TayPrashant ChandrasekharanBenjamin D. FellowsIrati Rodrigo ArrizabalagaElaine YuMalini OlivoSteven M. ConollyMDPI AGarticlemagnetic particle imagingmagnetic nanoparticlesmagnetic hyperthermiamagnetic drug deliveryNeoplasms. Tumors. Oncology. Including cancer and carcinogensRC254-282ENCancers, Vol 13, Iss 5285, p 5285 (2021)
institution DOAJ
collection DOAJ
language EN
topic magnetic particle imaging
magnetic nanoparticles
magnetic hyperthermia
magnetic drug delivery
Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
spellingShingle magnetic particle imaging
magnetic nanoparticles
magnetic hyperthermia
magnetic drug delivery
Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
Zhi Wei Tay
Prashant Chandrasekharan
Benjamin D. Fellows
Irati Rodrigo Arrizabalaga
Elaine Yu
Malini Olivo
Steven M. Conolly
Magnetic Particle Imaging: An Emerging Modality with Prospects in Diagnosis, Targeting and Therapy of Cancer
description Background: Magnetic Particle Imaging (MPI) is an emerging imaging modality for quantitative direct imaging of superparamagnetic iron oxide nanoparticles (SPION or SPIO). With different physics from MRI, MPI benefits from ideal image contrast with zero background tissue signal. This enables clear visualization of cancer with image characteristics similar to PET or SPECT, but using radiation-free magnetic nanoparticles instead, with infinite-duration reporter persistence in vivo. MPI for cancer imaging: demonstrated months of quantitative imaging of the cancer-related immune response with in situ SPION-labelling of immune cells (e.g., neutrophils, CAR T-cells). Because MPI suffers absolutely no susceptibility artifacts in the lung, immuno-MPI could soon provide completely noninvasive early-stage diagnosis and treatment monitoring of lung cancers. MPI for magnetic steering: MPI gradients are ~150 × stronger than MRI, enabling remote magnetic steering of magneto-aerosol, nanoparticles, and catheter tips, enhancing therapeutic delivery by magnetic means. MPI for precision therapy: gradients enable focusing of magnetic hyperthermia and magnetic-actuated drug release with up to 2 mm precision. The extent of drug release from the magnetic nanocarrier can be quantitatively monitored by MPI of SPION’s MPS spectral changes within the nanocarrier. Conclusion: MPI is a promising new magnetic modality spanning cancer imaging to guided-therapy.
format article
author Zhi Wei Tay
Prashant Chandrasekharan
Benjamin D. Fellows
Irati Rodrigo Arrizabalaga
Elaine Yu
Malini Olivo
Steven M. Conolly
author_facet Zhi Wei Tay
Prashant Chandrasekharan
Benjamin D. Fellows
Irati Rodrigo Arrizabalaga
Elaine Yu
Malini Olivo
Steven M. Conolly
author_sort Zhi Wei Tay
title Magnetic Particle Imaging: An Emerging Modality with Prospects in Diagnosis, Targeting and Therapy of Cancer
title_short Magnetic Particle Imaging: An Emerging Modality with Prospects in Diagnosis, Targeting and Therapy of Cancer
title_full Magnetic Particle Imaging: An Emerging Modality with Prospects in Diagnosis, Targeting and Therapy of Cancer
title_fullStr Magnetic Particle Imaging: An Emerging Modality with Prospects in Diagnosis, Targeting and Therapy of Cancer
title_full_unstemmed Magnetic Particle Imaging: An Emerging Modality with Prospects in Diagnosis, Targeting and Therapy of Cancer
title_sort magnetic particle imaging: an emerging modality with prospects in diagnosis, targeting and therapy of cancer
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/f567e5ebee1c496c8386b691cec211ff
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