In vivo rat brain measurements of changes in signal intensity depth profiles as a function of temperature using wide-field optical coherence tomography

2010 ◽  
Vol 49 (30) ◽  
pp. 5686 ◽  
Author(s):  
Manabu Sato ◽  
Daisuke Nomura ◽  
Takashi Tsunenari ◽  
Izumi Nishidate
2012 ◽  
Vol 51 (10) ◽  
pp. 1436 ◽  
Author(s):  
Manabu Sato ◽  
Daisuke Nomura ◽  
Tetsushi Kitano ◽  
Takashi Tsunenari ◽  
Izumi Nishidate

2017 ◽  
Vol 51 (4) ◽  
pp. 410-418 ◽  
Author(s):  
Rupert S. Austin ◽  
Maisalamah Haji Taha ◽  
Frederic Festy ◽  
Richard Cook ◽  
Manoharan Andiappan ◽  
...  

Swept-source optical coherence tomography (SS-OCT) shows potential for the in vivo quantitative evaluation of micro-structural enamel surface phenomena occurring during early erosive demineralization. This randomized controlled single-blind cross-over clinical study aimed to evaluate the use of SS-OCT for detecting optical changes in the enamel of 30 healthy volunteers subjected to orange juice rinsing (erosive challenge) in comparison to mineral water rinsing (control), according to wiped and non-wiped enamel surface states. Participants were randomly allocated to 60 min of orange juice rinsing (pH 3.8) followed by 60 min of water rinsing (pH 6.7) and vice versa, with a 2-week wash-out period. In addition, the labial surfaces of the right or left maxillary incisors were wiped prior to SS-OCT imaging. An automated ImageJ algorithm was designed to analyse the back-scattered OCT signal intensity (D) after orange juice rinsing compared to after water rinsing. D was quantified as the OCT signal scattering from the 33 µm sub-surface enamel, normalised by the total OCT signal intensity entering the enamel. The back-scattered OCT signal intensity increased by 3.1% (95% CI 1.1-5.1%) in the wiped incisors and by 3.5% (95% CI 1.5-5.5%) in the unwiped incisors (p < 0.0001). Wiping reduced the back-scattered OCT signal intensity by 1.7% (95% CI -3.2 to -0.3%; p = 0.02) in comparison to the unwiped enamel surfaces for both rinsing solutions (p = 0.2). SS-OCT detected OCT signal changes in the superficial sub-surface enamel of maxillary central incisor teeth of healthy volunteers after orange juice rinsing.


Optica ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 36 ◽  
Author(s):  
Kaicheng Liang ◽  
Zhao Wang ◽  
Osman O. Ahsen ◽  
Hsiang-Chieh Lee ◽  
Benjamin M. Potsaid ◽  
...  

2008 ◽  
Vol 50 (4) ◽  
pp. 1856-1863 ◽  
Author(s):  
B. Povazay ◽  
B. Hermann ◽  
B. Hofer ◽  
V. Kajic ◽  
E. Simpson ◽  
...  

2016 ◽  
Vol 7 (5) ◽  
pp. 1905 ◽  
Author(s):  
Jingjiang Xu ◽  
Wei Wei ◽  
Shaozhen Song ◽  
Xiaoli Qi ◽  
Ruikang K. Wang

2021 ◽  
Vol 10 (21) ◽  
pp. 4880
Author(s):  
Sandrine Anne Zweifel ◽  
Nastasia Foa ◽  
Maximilian Robert Justus Wiest ◽  
Adriano Carnevali ◽  
Katarzyna Zaluska-Ogryzek ◽  
...  

Due to their non-specific diagnostic patterns of ocular infection, differential diagnosis between Mycobacterium (M.) chimaera and tuberculosis can be challenging. In both disorders, ocular manifestation can be the first sign of a systemic infection, and a delayed diagnosis might reduce the response to treatment leading to negative outcomes. Thus, it becomes imperative to distinguish chorioretinal lesions associated with M. chimaera, from lesions due to M. tuberculosis and other infectious disorders. To date, multimodal non-invasive imaging modalities that include ultra-wide field fundus photography, fluorescein and indocyanine green angiography, optical coherence tomography and optical coherence tomography angiography, facilitate in vivo examination of retinal and choroidal tissues, enabling early diagnosis, monitoring treatment response, and relapse detection. This approach is crucial to differentiate between active and inactive ocular disease, and guides clinicians in their decisional-tree during the patients’ follow-up. In this review, we summarized and compared the available literature on multimodal imaging data of M. chimaera infection and tuberculosis, emphasizing similarities and differences in imaging patterns between these two entities and highlighting the relevance of multimodal imaging in the management of the infections.


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