Multimodal imaging of vascular network and blood microcirculation by optical diagnostic techniques

2011 ◽  
Vol 41 (4) ◽  
pp. 308-313 ◽  
Author(s):  
Yu L Kuznetsov ◽  
V V Kalchenko ◽  
I V Meglinski
1983 ◽  
Author(s):  
D. MURPHREE ◽  
R. COOK ◽  
W. SHEPARD ◽  
L. BAUMAN ◽  
J. GASSAWAY ◽  
...  

2020 ◽  
pp. 112067212093618
Author(s):  
Luisa Pierro ◽  
Alessandro Arrigo ◽  
Emanuela Aragona ◽  
Francesco Bandello

Amelanotic choroidal melanoma (ACM) is an extremely rare malignant tumor affecting the uvea. Because of the complex structure characterizing this kind of lesions, its morphologic features are partially understood, especially if looking to its vascular network. In this paper, we described in details the multimodal imaging features of ACM. Moreover, we disclosed new insights about different orders of blood vessels characterizing this tumor. Despite the entire vascular network is partially detectable by conventional dye-based angiography, it was reconstructed in its entirety by means of optical coherence tomography angiography. In conclusion, multimodal imaging represents a feasible and useful set of tools, able to describe in deep ACM features and its vascular network organization, and to provide clinically relevant information for ACM management.


Fuel ◽  
2020 ◽  
Vol 282 ◽  
pp. 118845
Author(s):  
Jiangbo Peng ◽  
Zhen Cao ◽  
Xin Yu ◽  
Hongliang Qi ◽  
Rui Sun ◽  
...  

Author(s):  
N A Halliwell ◽  
G K Hargrave

Optical engineering uses research and development of laser technology, modern photonic detection/imaging systems and optical metrology for engineering applications. It has produced a wide range of processes and techniques from high-power laser material processing to high-sensitivity metrology and has applications in every industrial sector. Modern optical diagnostic techniques are providing new experimental and in situ data, which hitherto were considered to be unobtainable. Engineers are analysing these data in order to provide immediate design improvements in the performance of components. In addition, they use the data to refine theoretical/computer models of engineering processes, which in turn provide more accurate performance prediction. This paper introduces technology now available to the optical engineer and describes how it is being used to provide optical diagnostic techniques for both solid and fluid mechanics applications in industry. The gas industry has to deal with gas provision safely and efficiently from ‘drill bit to burner tip’ and has benefited significantly from optical engineering. Examples of optical diagnostic techniques and applications, which are used to improve this process, are described.


2009 ◽  
Vol 1 (S1) ◽  
Author(s):  
Waseem Jerjes ◽  
Tahwinder Upile ◽  
Zaid Hamdoon ◽  
Christian S Betz ◽  
Colin Hopper

2004 ◽  
Vol 808 ◽  
Author(s):  
J.P.M. Hoefnagels ◽  
E. Langereis ◽  
M.C.M. van de Sanden ◽  
W.M.M. Kessels

ABSTRACTA new ultrahigh vacuum setup is presented which is designed for studying the surface science aspects of a-Si:H film growth using various advanced optical diagnostic techniques. The setup is equipped with plasma and radical sources which produce well-defined radicals beams such that the a-Si:H deposition process can be mimicked. In this paper the initial experiments with respect to deposition of a-Si:H using a hot wire source and etching of a-Si:H by atomic hydrogen are presented. These processes are monitored by real time spectroscopic ellipsometry and the etch yield of Si by atomic hydrogen is quantified to be 0.005±0.002 Si atoms per incoming H atom.


2019 ◽  
Vol 13 (1) ◽  
pp. 163-172 ◽  
Author(s):  
Maria Lepore ◽  
Ines Delfino

Intralipid is a material widely employed for the preparation of phantoms for optical imaging and biophotonics applications in medical field. The development of new optical diagnostic equipment in these fields requires the use of well-designed phantoms with optical properties (including scattering and absorption) mimicking those of biological tissues in all the pre-clinical stages of investigations. For this reason, great research effort has been devoted to optically characterize Intralipid and at preparing optimal phantoms. In this short review, we summarize the principal physico-chemical characteristics of Intralipid and the main contributions in the assessment of its scattering and absorption properties. In addition, the most largely used Intralipid-based homogeneous and non-homogeneous phantoms are discussed. Even though other materials are available for the preparation of phantoms, the use of Intralipid still offers an inexpensive and easy-to-use method for preparing phantoms with finely tuned optical properties.


Author(s):  
Nyansafo Aye-Addo ◽  
Valeria Andreoli ◽  
Nicholas Long ◽  
Guillermo Paniagua

Sign in / Sign up

Export Citation Format

Share Document