Engineering Principles of Ultrasound Technology

2017 ◽  
pp. 1-13 ◽  
Author(s):  
Sandra E. Kentish
Keyword(s):  
Ultrasound Technology

Photoacoustic and piezo-ultrasound hybrid-induced energy transfer for 3D twining wireless multifunctional implants

2021 ◽  
Author(s):  
Laiming Jiang ◽  
Gengxi Lu ◽  
Yang Yang ◽  
Yushun Zeng ◽  
Yizhe Sun ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Ultrasound Technology

A hybrid-induced energy transfer strategy using photoacoustic and piezo-ultrasound technology was proposed to achieve a 3D twining multifunctional implant.

scholarly journals Ultrasound and Doppler US in Evaluation of Superficial Soft-tissue Lesions

2014 ◽  
Vol 4 ◽  
pp. 12 ◽  
Author(s):  
Huseyin Toprak ◽  
Erkan Kiliç ◽  
Asli Serter ◽  
Ercan Kocakoç ◽  
Salih Ozgocmen
Keyword(s):  
Soft Tissue ◽  
Imaging Modality ◽  
Power Doppler ◽  
Soft Tissue Lesions ◽  
Doppler Us ◽  
Size Number ◽  
Ultrasound Technology ◽  
Superficial Tissue ◽  
Superficial Soft Tissue

Improved developments in digital ultrasound technology and the use of high-frequency broadband transducers make ultrasound (US) imaging the first screening tool in investigating superficial tissue lesions. US is a safe (no ionizing radiation), portable, easily repeatable, and cheap form of imaging compared to other imaging modalities. US is an excellent imaging modality to determine the nature of a mass lesion (cystic or solid) and its anatomic relation to adjoining structures. Masses can be characterized in terms of their size, number, component, and vascularity with US and Doppler US especially with power Doppler US. US, however, is operator dependent and has a number of artifacts that can result in misinterpretation. In this review, we emphasize the role of ultrasound, particularly power Doppler, in superficial soft-tissue lesions.

Laser-Excited Acoustics for Contact-Free Inspection of Aerospace Composites

2021 ◽  
Vol 79 (1) ◽  
pp. 28-37
Author(s):  
Matthias Brauns ◽  
Fabian Lucking ◽  
Balthasar Fischer ◽  
Clint Thomson ◽  
Igor Ivakhnenko
Keyword(s):  
Laser Excitation ◽  
Surface Condition ◽  
Ultrasonic Transducers ◽  
Fiber Reinforced Polymer ◽  
Coupling Agents ◽  
Laser Ultrasound ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
Ultrasound Technology ◽  
Contact Free

Ultrasonic testing (UT) is widely used for the nondestructive testing (NDT) of composite materials in the aerospace industry. Liquid-coupled piezoelectric ultrasonic transducers are the most common technology used in this field; however, liquid coupling agents are not always practical, economical, or compatible with materials that cannot get wet. Alternative couplant-free technologies such as air-coupled ultrasound or laser ultrasound (LUS) are available, but either lack the required sensitivity and resolution, or are very costly, large, and sensitive to surface condition and properties. In this paper, we introduce a new couplant-free approach using laser excitation and a commercially available optical micro-phone. This technique is termed laser-excited acoustics (LEA) NDT, which combines the advantages of a contact-free ultrasound technology with the potential for improved sensitivity and resolution required for NDT in industrial environments. We will demonstrate the capabilities of LEA on aerospace composite parts made of carbon and glass fiber–reinforced polymer (CFRP/GFRP) under realistic conditions.

PSIII-8 Sire breed differences for carcass attributes in feedlot steers using ultrasound technology

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 291-291
Author(s):  
Harley Buie ◽  
Noah P Jesko
Keyword(s):  
Pearson Correlation ◽  
Marbling Score ◽  
Live Animal ◽  
Feedlot Steers ◽  
Significant Difference ◽  
Ultrasound Measurements ◽  
Ribeye Area ◽  
Ultrasound Technology ◽  
Fat Thickness ◽  
Sire Breed

Abstract Live animal ultrasound measurements were taken on thirty-two feedlot steers and heifers for estimation of carcass endpoints including 12th rib fat thickness (FTU), ribeye area (REAU) and intramuscular fat (%FatU). Ultrasound measurements were collected by an inexperienced technician using an Aloka 500 ultrasound unit using Beef Image Analysis (BIA) software. The objective of the study was to evaluate carcass differences of four sire breed types including Angus (n = 11), Ultrablack (n = 6), Nelore (n = 6), Braunvieh (n = 1) and Angus X Nelore X Braunvieh hybrid (n = 8). Carcass data collected at harvest included 12th rib fat Thickness (FTC), Ribeye area (REAC), marbling score (MS), Yield Grade (YG), and Quality Grade (QG). The data were analyzed using SAS to determine breed effects. Means for FTU, FTC, REAU, REAC, %FatU and MS were 0.59 cm, 0.57 cm, 90.80 cm2, 83.53 cm2, 4.83%, and 483.75, respectively. There was no significant difference (P > 0.05) in YG and FT due to breed of sire. However, there was a trend for sire breed for ribeye area (P = 0.0728) for Angus X Nelore X Braunvieh cross and MS (P = 0.0786) for Ultrablack. Pearson correlation values between FTU and FTC, REAU and REAC, and %FatU and MS were 0.1217 (P = 0.05068), 0.3545 (P = .0465) and 0.5161 (P = 0.0025), respectively. These data suggest little differences existed in carcass attributes between various sire breeds out of a set of crossbred commercial cows.

Vascular Duplex Study: A Historical Perspective

2021 ◽  
Vol 14 (1) ◽  
pp. 55-60
Author(s):  
Abul Hasan Muhammad Bashar
Keyword(s):  
Present Article ◽  
Medical Practice ◽  
Historical Perspective ◽  
Medical Science ◽  
Diagnosis And Treatment ◽  
Recent History ◽  
Medical Ultrasound ◽  
Historical Aspects ◽  
Ultrasound Technology

Ultrasound is a key investigating tool aiding diagnosis and treatment in the day-to-day medical practice nowadays. Like any other invention, ultrasound technology also has a long history strewn with successes and setbacks. From its modest beginning, it has come a long way to be applied not only in medical science but also in many other areas including navigation and warfare. Scientistsengineers, physicists, mathematicians, biomedical engineers and physicians worked relentlessly over centuries to bring about developments in the field of ultrasound technology as a whole. Medical ultrasound has a relatively recent history that has seen great dedication and commitment from researchers to achieve the degree of finesse we see today. The present article looks back on the historical aspects of ultrasound technology with a focus on medical ultrasound. Cardiovasc j 2021; 14(1): 55-60

Predicting carcass composition of beef cattle using ultrasound technology.

1999 ◽  
Vol 77 (4) ◽  
pp. 889 ◽  
Author(s):  
D B Griffin ◽  
J W Savell ◽  
H A Recio ◽  
R P Garrett ◽  
H R Cross
Keyword(s):  
Beef Cattle ◽  
Carcass Composition ◽  
Ultrasound Technology

scholarly journals Application of KANET in Special Cases: Part I

2013 ◽  
Vol 7 (2) ◽  
pp. 200-207
Author(s):  
Aris Antsaklis ◽  
Panagiotis Antsaklis ◽  
Nicolaos Papantoniou
Keyword(s):  
Nervous System ◽  
Neurological Impairment ◽  
Detailed Examination ◽  
Fetal Outcome ◽  
Fetal Life ◽  
Perinatal Medicine ◽  
4D Ultrasound ◽  
Special Cases ◽  
Ultrasound Findings ◽  
Ultrasound Technology

ABSTRACT The detection of neurological impairment during fetal life has been a great challenge in perinatal medicine for many years. Evolution of ultrasound technology has allowed a more detailed examination of the fetal nervous system and earlier detection of central nervous system (CNS) abnormalities. However, overdiagnosis of CNS malformations or variations can be quite confusing from time to time, as we cannot always be sure how these may affect the fetus and as a result we cannot always advise adequately the parents of the affected fetuses about the prognosis. Defining normal and abnormal fetal neurological function in utero in order to better predict which fetuses are at risk for adverse neurological outcome could assist with the evaluation of the fetal outcome. Four-dimensional (4D) ultrasound has been used for the assessment of normal neurobehavioral development and has identified characteristics of the fetus that could predict neurological developmental dysfunction. Kurjak antenatal neurodevelopmental test (KANET) is a method that has been shown to offer great advantages for the assessment of fetal neurobehavior, and the findings of KANET have been verified in many studies with postnatal assessments. We present a series of cases where KANET could better improve the evaluation of the prognosis that was made based on ultrasound findings. How to cite this article Antsaklis P, Antsaklis A, Papantoniou N, Kurjak A. Application of KANET in Special Cases: Part I. Donald School J Ultrasound Obstet Gynecol 2013;7(2):200-207.

Sign in / Sign up

Export Citation Format

Share Document