Three-dimensional pulsation of rat carotid artery bifurcation observed using a high-resolution ultrasound imaging system

2015 ◽  
Vol 137 (4) ◽  
pp. 2425-2425 ◽  
Author(s):  
Changzhu Jin ◽  
Kweon-Ho Nam ◽  
Dong-Guk Paeng
Keyword(s):  
High Resolution ◽  
Carotid Artery ◽  
Ultrasound Imaging ◽  
Imaging System ◽  
Three Dimensional ◽  
Carotid Artery Bifurcation

Asymmetric radial expansion and contraction of rat carotid artery observed using a high-resolution ultrasound imaging system

Ultrasonics ◽  
2014 ◽  
Vol 54 (1) ◽  
pp. 233-240 ◽  
Author(s):  
Kweon-Ho Nam ◽  
Tae-Hoon Bok ◽  
Changzhu Jin ◽  
Dong-Guk Paeng
Keyword(s):  
High Resolution ◽  
Carotid Artery ◽  
Ultrasound Imaging ◽  
Imaging System ◽  
Radial Expansion

scholarly journals Validation of Scolioscan Air-Portable Radiation-Free Three-Dimensional Ultrasound Imaging Assessment System for Scoliosis

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2858
Author(s):  
Kelly Ka-Lee Lai ◽  
Timothy Tin-Yan Lee ◽  
Michael Ka-Shing Lee ◽  
Joseph Chi-Ho Hui ◽  
Yong-Ping Zheng
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System ◽  
Outcome Measurement ◽  
Three Dimensional ◽  
3D Ultrasound ◽  
Mean Difference ◽  
Assessment System ◽  
Absolute Difference ◽  
Data Sets ◽  
Low Profile

To diagnose scoliosis, the standing radiograph with Cobb’s method is the gold standard for clinical practice. Recently, three-dimensional (3D) ultrasound imaging, which is radiation-free and inexpensive, has been demonstrated to be reliable for the assessment of scoliosis and validated by several groups. A portable 3D ultrasound system for scoliosis assessment is very much demanded, as it can further extend its potential applications for scoliosis screening, diagnosis, monitoring, treatment outcome measurement, and progress prediction. The aim of this study was to investigate the reliability of a newly developed portable 3D ultrasound imaging system, Scolioscan Air, for scoliosis assessment using coronal images it generated. The system was comprised of a handheld probe and tablet PC linking with a USB cable, and the probe further included a palm-sized ultrasound module together with a low-profile optical spatial sensor. A plastic phantom with three different angle structures built-in was used to evaluate the accuracy of measurement by positioning in 10 different orientations. Then, 19 volunteers with scoliosis (13F and 6M; Age: 13.6 ± 3.2 years) with different severity of scoliosis were assessed. Each subject underwent scanning by a commercially available 3D ultrasound imaging system, Scolioscan, and the portable 3D ultrasound imaging system, with the same posture on the same date. The spinal process angles (SPA) were measured in the coronal images formed by both systems and compared with each other. The angle phantom measurement showed the measured angles well agreed with the designed values, 59.7 ± 2.9 vs. 60 degrees, 40.8 ± 1.9 vs. 40 degrees, and 20.9 ± 2.1 vs. 20 degrees. For the subject tests, results demonstrated that there was a very good agreement between the angles obtained by the two systems, with a strong correlation (R2 = 0.78) for the 29 curves measured. The absolute difference between the two data sets was 2.9 ± 1.8 degrees. In addition, there was a small mean difference of 1.2 degrees, and the differences were symmetrically distributed around the mean difference according to the Bland–Altman test. Scolioscan Air was sufficiently comparable to Scolioscan in scoliosis assessment, overcoming the space limitation of Scolioscan and thus providing wider applications. Further studies involving a larger number of subjects are worthwhile to demonstrate its potential clinical values for the management of scoliosis.

High-Resolution Ultrasound Imaging of Human Skin In Vivo by Using Three-Dimensional Ultrasound Microscopy

2012 ◽  
Vol 38 (10) ◽  
pp. 1833-1838 ◽  
Author(s):  
Kazutoshi Kumagai ◽  
Hideyuki Koike ◽  
Ryo Nagaoka ◽  
Shingo Sakai ◽  
Kazuto Kobayashi ◽  
...  
Keyword(s):  
High Resolution ◽  
Human Skin ◽  
Ultrasound Imaging ◽  
Three Dimensional ◽  
Ultrasound Microscopy

A System for Computer-based Reconstruction of 3-Dimensional Structures from Serial Tissue Sections: an Application to the Study of Normal and Neoplastic Mammary Gland Biology

2001 ◽  
Vol 7 (S2) ◽  
pp. 964-965
Author(s):  
Rodrigo Fernandez-Gonzalez ◽  
Arthur Jones ◽  
Enrique Garcia-Rodriguez ◽  
Davis Knowles ◽  
Damir Sudar ◽  
...  
Keyword(s):  
Mammary Gland ◽  
High Resolution ◽  
Imaging System ◽  
Contextual Information ◽  
Three Dimensional ◽  
Tissue Level ◽  
Disease Heterogeneity ◽  
Tissue Sections ◽  
Virtual Reconstruction ◽  
Analytical Microscopy

Tissue heterogeneity and three-dimensionality are generally neglected by most traditional analytical microscopy methods in Biology. These often disregard contextual information important for understanding most biological systems. in breast cancer, which is a tissue level disease, heterogeneity and three dimensionality are at the very base of cancer initiation and clonal progression. Thus, a three dimensional quantitative system that allows low resolution virtual reconstruction of the mammary gland from serial sections, followed by high resolution cell-level reconstruction and quantitative analysis of the ductal epithelium emerges as an essential tool in studying the disease. We present here a distributed microscopic imaging system which allows acquiring and registering low magnification (1 pixel = 5 μm) conventional (bright field or fluorescence) images of entire tissue sections; then it allows tracing (in 3D) the ducts of the mammary gland from adjacent sections, to create a 3D virtual reconstruction of the gland; finally it allows revisiting areas of interest for high resolution (1 pixel = 0.5 μm) imaging and automatic analysis. We illustrate the use of the system for the reconstruction of a small volume of breast tissue.

Sign in / Sign up

Export Citation Format

Share Document