Non-invasive carotid artery elastography using multi-element synthetic aperture and plane wave imaging: Phantom and in vivo evaluation

2017 ◽  
Vol 141 (5) ◽  
pp. 3612-3612
Author(s):  
Rohit Nayak ◽  
Giovanni Schifitto ◽  
Marvin M. Doyley
Keyword(s):  
Carotid Artery ◽  
Plane Wave ◽  
Synthetic Aperture ◽  
In Vivo Evaluation ◽  
Non Invasive ◽  
Wave Imaging

scholarly journals In Vivo Evaluation of Plane Wave Imaging for Abdominal Ultrasonography

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5675
Author(s):  
Sua Bae ◽  
Jintae Jang ◽  
Moon Hyung Choi ◽  
Tai-Kyong Song
Keyword(s):  
Plane Wave ◽  
Focal Depth ◽  
Artifact Reduction ◽  
Promising Technique ◽  
In Vivo Evaluation ◽  
Abdominal Ultrasonography ◽  
Acquisition Rate ◽  
Array Transducer ◽  
Wave Imaging

Although plane wave imaging (PWI) has been extensively employed for ultrafast ultrasound imaging, its potential for sectorial B-mode imaging with a convex array transducer has not yet been widely recognized. Recently, we reported an optimized PWI approach for sector scanning that exploits the dynamic transmit focusing capability. In this paper, we first report the clinical applicability of the optimized PWI for abdominal ultrasonography by in vivo image and video evaluations and compare it with conventional focusing (CF) and diverging wave imaging (DWI), which is another dynamic transmit focusing technique generally used for sectorial imaging. In vivo images and videos of the liver, kidney, and gallbladder were obtained from 30 healthy volunteers using PWI, DWI, and CF. Three radiologists assessed the phantom images, 156 in vivo images, and 66 in vivo videos. PWI showed significantly enhanced (p < 0.05) spatial resolution, contrast, and noise and artifact reduction, and a 4-fold higher acquisition rate compared to CF and provided similar performances compared to DWI. Because the computations required for PWI are considerably lower than that for DWI, PWI may represent a promising technique for sectorial imaging in abdominal ultrasonography that provides better image quality and eliminates the need for focal depth adjustment.

A Comparison Between Compounding Techniques Using Large Beam-Steered Plane Wave Imaging for Blood Vector Velocity Imaging in a Carotid Artery Model

2016 ◽  
Vol 63 (11) ◽  
pp. 1758-1771 ◽  
Author(s):  
Anne E. C. M. Saris ◽  
Hendrik H. G. Hansen ◽  
Stein Fekkes ◽  
Maartje M. Nillesen ◽  
Marcel C. M. Rutten ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Plane Wave ◽  
Velocity Imaging ◽  
Vector Velocity ◽  
Wave Imaging

scholarly journals In vivo evaluation of biomimetic fluorosurfactant polymer-coated expanded polytetrafluoroethylene vascular grafts in a porcine carotid artery bypass model

2016 ◽  
Vol 63 (6) ◽  
pp. 1620-1630.e4 ◽  
Author(s):  
Jennifer M. Bastijanic ◽  
Roger E. Marchant ◽  
Faina Kligman ◽  
Matthew T. Allemang ◽  
Ryan O. Lakin ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Artery Bypass ◽  
Vascular Grafts ◽  
In Vivo Evaluation ◽  
Expanded Polytetrafluoroethylene ◽  
Porcine Carotid Artery

scholarly journals Development of non-invasive Raman spectroscopy for in vivo evaluation of bone graft osseointegration in a rat model

The Analyst ◽  
2010 ◽  
Vol 135 (12) ◽  
pp. 3142 ◽  
Author(s):  
Paul I. Okagbare ◽  
Francis W. L. Esmonde-White ◽  
Steven A. Goldstein ◽  
Michael D. Morris
Keyword(s):  
Raman Spectroscopy ◽  
Bone Graft ◽  
Rat Model ◽  
In Vivo Evaluation ◽  
Non Invasive

scholarly journals In Vivo Evaluation of Quantitative MR Angiography in a Canine Carotid Artery Stenosis Model

2011 ◽  
Vol 32 (8) ◽  
pp. 1552-1559 ◽  
Author(s):  
M. Calderon-Arnulphi ◽  
S. Amin-Hanjani ◽  
A. Alaraj ◽  
M. Zhao ◽  
X. Du ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Mr Angiography ◽  
Artery Stenosis ◽  
In Vivo Evaluation ◽  
Quantitative Mr

scholarly journals Imaging of microglial activation in MS using PET: Research use and potential future clinical application

2016 ◽  
Vol 23 (4) ◽  
pp. 496-504 ◽  
Author(s):  
Laura Airas ◽  
Eero Rissanen ◽  
Juha Rinne
Keyword(s):  
Complex Disease ◽  
Treatment Options ◽  
Quantitative Information ◽  
Imaging Biomarkers ◽  
In Vivo Evaluation ◽  
Non Invasive ◽  
Positron Emission ◽  
Magnetic Resonance Imaging Mri

Multiple sclerosis (MS) is a complex disease, where several processes can be selected as a target for positron emission topography (PET) imaging. Unlike magnetic resonance imaging (MRI), PET provides specific and quantitative information, and unlike neuropathology, it can be non-invasively applied to living patients, which enables longitudinal follow-up of the MS pathology. In the study of MS, PET can be useful for in vivo evaluation of specific pathological characteristics at various stages of the disease. Increased understanding of the progressive MS pathology will enhance the treatment options of this undertreated condition. The ultimate goal of developing and expanding PET in the study of MS is to have clinical non-invasive in vivo imaging biomarkers of neuroinflammation that will help to establish prognosis and accurately measure response to therapeutics. This topical review provides an overview of the promises and challenges of the use of PET in MS.

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