scholarly journals Synthesis, characterization, and evaluation of PEGylated first-row transition metal ferrite nanoparticles as T2contrast agents for high-field MRI

RSC Advances ◽  
2017 ◽  
Vol 7 (61) ◽  
pp. 38125-38134 ◽  
Author(s):  
Abhinandan Banerjee ◽  
Barbara Blasiak ◽  
Eva Pasquier ◽  
Boguslaw Tomanek ◽  
Simon Trudel
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Transition Metal ◽  
High Field ◽  
Spinel Ferrite ◽  
Ferrite Nanoparticles ◽  
Resonance Imaging ◽  
High Field Mri ◽  
One Pot ◽  
One Pot Synthesis

PEGylated MFe2O4(M = Mn through Zn) spinel ferrite preparedviaa novel one-pot synthesis were evaluated for high-field (B0= 9.4 T) magnetic resonance imaging.

Nanotexaphyrin: One-Pot Synthesis of a Manganese Texaphyrin-Phospholipid Nanoparticle for Magnetic Resonance Imaging

2016 ◽  
Vol 55 (21) ◽  
pp. 6187-6191 ◽  
Author(s):  
Joseph M. Keca ◽  
Juan Chen ◽  
Marta Overchuk ◽  
Nidal Muhanna ◽  
Christina M. MacLaughlin ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
One Pot ◽  
One Pot Synthesis

Nanotexaphyrin: One-Pot Synthesis of a Manganese Texaphyrin-Phospholipid Nanoparticle for Magnetic Resonance Imaging

2016 ◽  
Vol 128 (21) ◽  
pp. 6295-6299 ◽  
Author(s):  
Joseph M. Keca ◽  
Juan Chen ◽  
Marta Overchuk ◽  
Nidal Muhanna ◽  
Christina M. MacLaughlin ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
One Pot ◽  
One Pot Synthesis

scholarly journals Transsphenoidal surgery in acromegaly investigated by intraoperative high-field magnetic resonance imaging

2005 ◽  
Vol 153 (2) ◽  
pp. 239-248 ◽  
Author(s):  
Rudolf Fahlbusch ◽  
Boris v Keller ◽  
Oliver Ganslandt ◽  
Jürgen Kreutzer ◽  
Christopher Nimsky
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Tumor Size ◽  
Transsphenoidal Surgery ◽  
High Field ◽  
Intraoperative Mri ◽  
Resonance Imaging ◽  
Tumor Removal ◽  
High Field Mri ◽  
Igf I

Objective: The aim of the study was to evaluate the effect of intraoperative high-field (1.5 Tesla) magnetic resonance imaging (MRI) on the results of transsphenoidal surgery of GH-secreting pituitary macroadenomas. Methods: Twenty-three acromegalic patients (mean tumor size, 25 ± 12 mm; untreated preoperative GH, 4.2–159 μg/l; IGF-I, 349–1111 μg/l) were investigated by intraoperative high-field MRI. If intraoperative imaging depicted an accessible tumor remnant, resection was continued. Results: In five patients intraoperative MRI led to further tumor removal, two of these met the consensus criteria for endocrine remission after 3 months. In two patients basal GH and oral glucose tolerance test (OGTT) were <2 μg/l, only IGF-I was slightly elevated, and in one patient GH was <5 μg/l and OGTT was 2 μg/l, with elevated IGF-I. Final intraoperative MRI showed no tumor remnants in 14 patients; eight of them met the consensus criteria for remission of acromegaly. In the patients with MRI showing incomplete removal (four suspect findings and five patients with intended partial removal) none was normalized. Conclusion: With regard to the patients with a tumor configuration in whom complete tumor removal was considered (n = 18), intraoperative MRI increased the rate of endocrine normalization from 33 to 44% applying the consensus criteria, and improved endocrine outcome to ‘nearly normalization’ in another 17%. With regard to preoperative GH levels and tumor size, intraoperative MRI can help to achieve endocrine remission in patients who are normally considered not to be curable. However, taking GH as the tumor marker, even intraoperative high-field MRI was not able to detect tumor remnants in every case.

One-pot synthesis of Gd3+-functionalized gold nanoclusters for dual model (fluorescence/magnetic resonance) imaging

2013 ◽  
Vol 1 (29) ◽  
pp. 3545 ◽  
Author(s):  
Guohai Liang ◽  
Daixin Ye ◽  
Xianxia Zhang ◽  
Fang Dong ◽  
Hui Chen ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Gold Nanoclusters ◽  
Dual Model ◽  
Resonance Imaging ◽  
One Pot ◽  
One Pot Synthesis

One-pot synthesis of water-soluble and biocompatible superparamagnetic gadolinium-doped iron oxide nanoclusters

2020 ◽  
Vol 8 (7) ◽  
pp. 1432-1444 ◽  
Author(s):  
Huijing Xiang ◽  
Pingli Dong ◽  
Lei Pi ◽  
Zhijie Wang ◽  
Tingting Zhang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Iron Oxide ◽  
Magnetic Resonance ◽  
Water Soluble ◽  
Resonance Imaging ◽  
One Pot ◽  
One Pot Synthesis ◽  
Magnetic Resonance Imaging Mri

The synthesis of superparamagnetic nanoclusters is critical for ultra-sensitive magnetic resonance imaging (MRI).

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