Photoluminescence and magnetism integrated multifunctional black phosphorus probes through controllable P=O bonds orbital hybridization

2021 ◽  
Author(s):  
Shuyi Wu ◽  
R. L. Qi ◽  
Chunlan Ma ◽  
Yun Shan ◽  
Y.J. Wu ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Optical Imaging ◽  
Clinical Diagnosis ◽  
Critical Role ◽  
Black Phosphorus ◽  
Resonance Imaging ◽  
Fluorescence Optical Imaging ◽  
Orbital Hybridization ◽  
Magnetic Resonance Imaging Mri

Biological probes with integrating photoluminescence and magnetism characteristic play a critical role in modern clinical diagnosis and surgical protocols combining fluorescence optical imaging (FOI) with magnetic resonance imaging (MRI) technology....

Near-infrared Fluorescence Optical Imaging in Early Rheumatoid Arthritis: A Comparison to Magnetic Resonance Imaging and Ultrasonography

2015 ◽  
Vol 42 (7) ◽  
pp. 1112-1118 ◽  
Author(s):  
Michaela Krohn ◽  
Sarah Ohrndorf ◽  
Stephanie G. Werner ◽  
Bernd Schicke ◽  
Gerd-Rüdiger Burmester ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Optical Imaging ◽  
Early Rheumatoid Arthritis ◽  
Near Infrared ◽  
Resonance Imaging ◽  
Near Infrared Fluorescence ◽  
Fluorescence Optical Imaging ◽  
Early Ra

Objective.Near-infrared fluorescence optical imaging (FOI) is a novel imaging technology in the detection and evaluation of different arthritides. FOI was validated in comparison to magnetic resonance imaging (MRI), greyscale ultrasonography (GSUS), and power Doppler ultrasonography (PDUS) in patients with early rheumatoid arthritis (RA).Methods.Hands of 31 patients with early RA were examined by FOI, MRI, and US. In each modality, synovitis of the wrist, metacarpophalangeal joints (MCP) 2–5, and proximal interphalangeal joints (PIP) 2–5 were scored on a 4-point scale (0–3). Sensitivity and specificity of FOI were analyzed in comparison to MRI and US as reference methods, differentiating between 3 phases of FOI enhancement (P1–3). Intraclass correlation coefficients (ICC) were calculated to evaluate the agreement of FOI with MRI and US.Results.A total of 279 joints (31 wrists, 124 MCP and 124 PIP joints) were evaluated. With MRI as the reference method, overall sensitivity/specificity of FOI was 0.81/0.00, 0.49/0.84, and 0.86/0.38 for wrist, MCP, and PIP joints, respectively. Under application of PDUS as reference, sensitivity was even higher, while specificity turned out to be low, except for MCP joints (0.88/0.15, 0.81/0.76, and 1.00/0.27, respectively). P2 appears to be the most sensitive FOI phase, while P1 showed the highest specificity. The best agreement of FOI was shown for PDUS, especially with regard to MCP and PIP joints (ICC of 0.57 and 0.53, respectively), while correlation with MRI was slightly lower.Conclusion.FOI remains an interesting diagnostic tool for patients with early RA, although this study revealed limitations concerning the detection of synovitis. Further research is needed to evaluate its full diagnostic potential in rheumatic diseases.

ZnO coated CoFe2O4 nanoparticles for multimodal bio-imaging

RSC Advances ◽  
2016 ◽  
Vol 6 (23) ◽  
pp. 18843-18851 ◽  
Author(s):  
N. Venkatesha ◽  
Yasrib Qurishi ◽  
Hanudatta S. Atreya ◽  
Chandan Srivastava
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Core Shell ◽  
Resonance Imaging ◽  
Cofe2o4 Nanoparticles ◽  
Shell Nanoparticles ◽  
Fluorescence Optical Imaging ◽  
Bio Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Core Shell Nanoparticles

The potential of CoFe2O4–ZnO core–shell nanoparticles for fluorescence optical imaging and as a contrast agent for magnetic resonance imaging (MRI) is demonstrated.

PEG–MWCNT/Fe hybrids as multi-modal contrast agents for MRI and optical imaging

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49891-49902 ◽  
Author(s):  
Anna Baranowska-Korczyc ◽  
Małgorzata Jasiurkowska-Delaporte ◽  
Barbara M. Maciejewska ◽  
Alicja Warowicka ◽  
L. Emerson Coy ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Polyethylene Glycol ◽  
Carbon Nanotube ◽  
Magnetic Resonance ◽  
Fluorescence Microscopy ◽  
Contrast Agents ◽  
Optical Imaging ◽  
Resonance Imaging ◽  
Multi Walled Carbon Nanotube ◽  
Magnetic Resonance Imaging Mri

This study examines the use of oxidized multi-walled carbon nanotube/iron (O-MWCNT/Fe) nanohybrids modified with polyethylene glycol (PEG) as multifunctional cellular imaging agents for magnetic resonance imaging (MRI) and fluorescence microscopy.

Magnetic resonance imaging of tumor vasculature

2003 ◽  
Vol 89 (01) ◽  
pp. 25-33 ◽  
Author(s):  
Maya Chetrit-Dadiani ◽  
Liora Bogin ◽  
Edna Furman-Haran ◽  
Hadassa Degani
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Critical Role ◽  
Tumor Vasculature ◽  
Breast Cancer Diagnosis ◽  
Resonance Imaging ◽  
Tissue Water ◽  
Magnetic Resonance Imaging Mri ◽  
Tumor Growth And Metastasis

SummaryAngiogenic activity and formation of a vascular network facilitate tumor perfusion and play a critical role in tumor growth and metastasis. Tumor vasculature may be visualized by means of parametric imaging of specific morphological and physiological characteristics that collectively describe its properties. In this review, we describe advanced magnetic resonance imaging (MRI) techniques that have been developed in order to image and quantify the distribution of tumor vasculature throughout the tumor and characterize its function. These techniques have been used to monitor changes in the magnetic resonance signal intensity of tissue water hydrogens generated by intrinsic effects, as well as by exogenous contrast agents administered into the blood circulation. We further describe specific applications of magnetic resonance imaging using a contrast agent, gadolinium diethylene triamine penta-acetic acid (GdDTPA), which has long been approved for clinical use. Examples include studies of the vascular properties of breast cancer tumors and metastases in animal models, as well as of breast cancer vasculature in patients. We also discuss the use of MRI to improve breast cancer diagnosis in humans by quantifying the permeability of the tumor vasculature. By maximizing the spatial resolution of the images in both animal and human studies, the capacity of magnetic resonance imaging to enhance our understanding of the processes regulating tumor angio-genesis, and improve the diagnosis of cancer, could be clearly demonstrated.

Posterior Interosseous Nerve Compression Due to an Enlarged Bicipital Bursa Confirmed by MRI

1993 ◽  
Vol 18 (6) ◽  
pp. 753-756 ◽  
Author(s):  
R. J. SPINNER ◽  
R. E. LINS ◽  
A. J. COLLINS ◽  
M. SPINNER
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Diagnosis ◽  
Clinical Entity ◽  
Nerve Compression ◽  
Posterior Interosseous Nerve ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Proximal Forearm ◽  
Operative Assessment

Posterior interosseous nerve compression is a well-described clinical entity with many aetiologies. Fewer than 12 documented cases of the condition due to an enlarged bicipital bursa exist in the literature. We describe a case in which magnetic resonance imaging (MRI) was used in the pre-operative assessment of a mass in the proximal forearm with a clinical diagnosis of partial posterior interosseous nerve compression.

The Value of Magnetic Resonance Imaging and Clinical Examination in the Diagnosis of Nasopharyngeal Carcinoma Infiltration Along Cranial Nerve

2020 ◽  
Vol 10 (8) ◽  
pp. 1863-1868
Author(s):  
Manyi Li ◽  
Fuwei Cheng ◽  
Jisheng Liu ◽  
Temucin Mustafa
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Nasopharyngeal Carcinoma ◽  
Clinical Diagnosis ◽  
Clinical Examination ◽  
Cranial Nerve ◽  
Resonance Imaging ◽  
Positive Rate ◽  
Mri Diagnosis ◽  
Magnetic Resonance Imaging Mri

Objective: To study the value of magnetic resonance imaging (MRI) in the diagnosis of nasopharyngeal carcinoma with pericranial infiltration. Methods: 86 patients with nasopharyngeal carcinoma were selected as the research objected and examined by MRI and clinical examination, and the results of the two methods were compared. Results: In MRI examination, the positive rate of cranial nerve infiltration in nasopharyngeal carcinoma was 23.26%, which was significantly higher than 8.13% in clinical diagnosis. The coincidence rate between clinical diagnosis and MRI diagnosis was 35.00%. Conclusion: Nuclear MRI has important application value in the diagnosis of cranial nerve infiltration of nasopharyngeal carcinoma, which is worthy of clinical promotion.

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