Multicomponent nanocrystals with anti-Stokes luminescence as contrast agents for modern imaging techniques

2017 ◽  
Vol 245 ◽  
pp. 1-19 ◽  
Author(s):  
A.N. Generalova ◽  
B.N. Chichkov ◽  
E.V. Khaydukov
Keyword(s):  
Contrast Agents ◽  
Imaging Techniques ◽  
Modern Imaging ◽  
Anti Stokes

Non-radioactive imaging strategies for in vivo immune cell tracking

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Łukasz Kiraga ◽  
Paulina Kucharzewska ◽  
Damian Strzemecki ◽  
Tomasz P. Rygiel ◽  
Magdalena Król
Keyword(s):  
Diagnostic Imaging ◽  
Contrast Agents ◽  
Cell Tracking ◽  
Immune Cell ◽  
Imaging Techniques ◽  
Diagnostic Technique ◽  
Cell Labeling ◽  
X Ray Imaging ◽  
Disease Study

Abstract In vivo tracking of administered cells chosen for specific disease treatment may be conducted by diagnostic imaging techniques preceded by cell labeling with special contrast agents. The most commonly used agents are those with radioactive properties, however their use in research is often impossible. This review paper focuses on the essential aspect of cell tracking with the exclusion of radioisotope tracers, therefore we compare application of different types of non-radioactive contrast agents (cell tracers), methods of cell labeling and application of various techniques for cell tracking, which are commonly used in preclinical or clinical studies. We discuss diagnostic imaging methods belonging to three groups: (1) Contrast-enhanced X-ray imaging, (2) Magnetic resonance imaging, and (3) Optical imaging. In addition, we present some interesting data from our own research on tracking immune cell with the use of discussed methods. Finally, we introduce an algorithm which may be useful for researchers planning leukocyte targeting studies, which may help to choose the appropriate cell type, contrast agent and diagnostic technique for particular disease study.

scholarly journals Iron Oxide Nanoparticles as Theranostic Agents in Cancer Immunotherapy

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1950
Author(s):  
Rossella Canese ◽  
Federica Vurro ◽  
Pasquina Marzola
Keyword(s):  
Iron Oxide ◽  
Contrast Agents ◽  
Cancer Immunotherapy ◽  
Iron Oxide Nanoparticles ◽  
Imaging Techniques ◽  
Macrophage Polarization ◽  
Mri Contrast Agents ◽  
Oxide Nanoparticles ◽  
Diagnostic Potential ◽  
Theranostic Agents

Starting from the mid-1990s, several iron oxide nanoparticles (NPs) were developed as MRI contrast agents. Since their sizes fall in the tenths of a nanometer range, after i.v. injection these NPs are preferentially captured by the reticuloendothelial system of the liver. They have therefore been proposed as liver-specific contrast agents. Even though their unfavorable cost/benefit ratio has led to their withdrawal from the market, innovative applications have recently prompted a renewal of interest in these NPs. One important and innovative application is as diagnostic agents in cancer immunotherapy, thanks to their ability to track tumor-associated macrophages (TAMs) in vivo. It is worth noting that iron oxide NPs may also have a therapeutic role, given their ability to alter macrophage polarization. This review is devoted to the most recent advances in applications of iron oxide NPs in tumor diagnosis and therapy. The intrinsic therapeutic effect of these NPs on tumor growth, their capability to alter macrophage polarization and their diagnostic potential are examined. Innovative strategies for NP-based drug delivery in tumors (e.g., magnetic resonance targeting) will also be described. Finally, the review looks at their role as tracers for innovative, and very promising, imaging techniques (magnetic particle imaging-MPI).

The value of modern imaging techniques in the diagnosis of foot swellings

The Foot ◽  
1996 ◽  
Vol 6 (3) ◽  
pp. 152-157
Author(s):  
M. Douek ◽  
J.L. Kitson ◽  
D.V. Parums ◽  
R.R.H. Coombs
Keyword(s):  
Imaging Techniques ◽  
Modern Imaging

Modern imaging techniques and ultrasound-guided aspiration cytology for the assessment of neck node metastases: a prospective comparative study

1993 ◽  
Vol 250 (1) ◽  
pp. 11-17 ◽  
Author(s):  
M. W. M. van den Brekel ◽  
J. A. Castelijns ◽  
H. V. Stel ◽  
R. P. Golding ◽  
C. J. L. Meyer ◽  
...  
Keyword(s):  
Comparative Study ◽  
Imaging Techniques ◽  
Ultrasound Guided ◽  
Aspiration Cytology ◽  
Neck Node ◽  
Modern Imaging ◽  
Prospective Comparative Study ◽  
Node Metastases

scholarly journals Multiphoton Microscopy for Ophthalmic Imaging

2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Emily A. Gibson ◽  
Omid Masihzadeh ◽  
Tim C. Lei ◽  
David A. Ammar ◽  
Malik Y. Kahook
Keyword(s):  
Harmonic Generation ◽  
Second Harmonic ◽  
Imaging Techniques ◽  
Multiphoton Microscopy ◽  
Tissue Imaging ◽  
Third Harmonic ◽  
Two Photon ◽  
Disease Mechanisms ◽  
Ophthalmic Imaging ◽  
Anti Stokes

We review multiphoton microscopy (MPM) including two-photon autofluorescence (2PAF), second harmonic generation (SHG), third harmonic generation (THG), fluorescence lifetime (FLIM), and coherent anti-Stokes Raman Scattering (CARS) with relevance to clinical applications in ophthalmology. The different imaging modalities are discussed highlighting the particular strength that each has for functional tissue imaging. MPM is compared with current clinical ophthalmological imaging techniques such as reflectance confocal microscopy, optical coherence tomography, and fluorescence imaging. In addition, we discuss the future prospects for MPM in disease detection and clinical monitoring of disease progression, understanding fundamental disease mechanisms, and real-time monitoring of drug delivery.

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