scholarly journals Three-dimensional optoacoustic tomography using a conventional ultrasound linear detector array: Whole-body tomographic system for small animals

2012 ◽  
Vol 40 (1) ◽  
pp. 013302 ◽  
Author(s):  
Jérôme Gateau ◽  
Miguel Ángel Araque Caballero ◽  
Alexander Dima ◽  
Vasilis Ntziachristos
Keyword(s):  
Three Dimensional ◽  
Detector Array ◽  
Whole Body ◽  
Small Animals ◽  
Linear Detector ◽  
Optoacoustic Tomography ◽  
Conventional Ultrasound

scholarly journals Whole-body three-dimensional optoacoustic tomography system for small animals

2009 ◽  
Vol 14 (6) ◽  
pp. 064007 ◽  
Author(s):  
Hans-Peter Brecht ◽  
Richard Su ◽  
Matthew Fronheiser ◽  
Sergey A. Ermilov ◽  
Andre Conjusteau ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Whole Body ◽  
Small Animals ◽  
Optoacoustic Tomography ◽  
Tomography System

scholarly journals Self-Gated Respiratory Motion Rejection for Optoacoustic Tomography

2019 ◽  
Vol 9 (13) ◽  
pp. 2737 ◽  
Author(s):  
Avihai Ron ◽  
Neda Davoudi ◽  
Xosé Luís Deán-Ben ◽  
Daniel Razansky
Keyword(s):  
Data Acquisition ◽  
Respiratory Motion ◽  
Image Acquisition ◽  
Three Dimensional ◽  
Image Data ◽  
Motion Artifacts ◽  
Whole Body ◽  
Cross Sectional ◽  
Optoacoustic Tomography

Respiratory motion in living organisms is known to result in image blurring and loss of resolution, chiefly due to the lengthy acquisition times of the corresponding image acquisition methods. Optoacoustic tomography can effectively eliminate in vivo motion artifacts due to its inherent capacity for collecting image data from the entire imaged region following a single nanoseconds-duration laser pulse. However, multi-frame image analysis is often essential in applications relying on spectroscopic data acquisition or for scanning-based systems. Thereby, efficient methods to correct for image distortions due to motion are imperative. Herein, we demonstrate that efficient motion rejection in optoacoustic tomography can readily be accomplished by frame clustering during image acquisition, thus averting excessive data acquisition and post-processing. The algorithm’s efficiency for two- and three-dimensional imaging was validated with experimental whole-body mouse data acquired by spiral volumetric optoacoustic tomography (SVOT) and full-ring cross-sectional imaging scanners.

Three-dimensional optical tomographic brain imaging in small animals, part 1: hypercapnia

2004 ◽  
Vol 9 (5) ◽  
pp. 1046 ◽  
Author(s):  
A. Y. Bluestone ◽  
M. Stewart ◽  
J. Lasker ◽  
G. S. Abdoulaev ◽  
A. H. Hielscher
Keyword(s):  
Brain Imaging ◽  
Three Dimensional ◽  
Small Animals

scholarly journals Biodynamics of supine humans and interaction with transport systems during vibration and shocks

2017 ◽  
Vol 38 (2) ◽  
pp. 808-816 ◽  
Author(s):  
Salam Rahmatalla ◽  
Jonathan DeShaw ◽  
Khalid Barazanji
Keyword(s):  
Relative Motion ◽  
Random Vibration ◽  
Whole Body Vibration ◽  
Three Dimensional ◽  
Whole Body ◽  
Transport Systems ◽  
Biomechanical Response ◽  
Contact Surfaces ◽  
Vertical Accelerations ◽  
Human Transport

This work investigates the effect of the contact surfaces on the biomechanical response of supine humans during whole-body vibration and shocks. Twelve participants were exposed to three-dimensional random vibration and shocks and were tested with two types of contact surfaces: (i) litter only, and (ii) litter with spinal board. The two configurations were tested with and without body straps to secure the supine human. The addition of the spinal board reduced the involuntary motion of the supine humans in most directions. There were significant reductions in the relative vertical accelerations at the neck and torso areas, especially during shocks ( p < 0.01). The inclusion of body straps with the spinal board was more effective in reducing the relative motion in most directions when shocks were presented. This study shows that the ergonomic design of the human transport system and the underlying contacting surfaces should be studied during dynamic transport environments.

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