Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Kasia Harasiewicz"'
Publikováno v:
Ultrasonic Imaging. 27:54-64
Making fine scale (50 MHz) ultrasound transducers remains challenging. Interdigital phase bonding (IPhB), described in this paper, presents a new technique developed to make piezoelectric composites at the ultrafine scale using a conventional dicing
Autor:
Shum Dt, Kasia Harasiewicz, Daniel H. Turnbull, G N Watteel, Ronald Prussick, Daniel N. Sauder, F.S. Foster, Hurst Ln, Aditya K. Gupta
Publikováno v:
Dermatologic Surgery. 22:131-136
BACKGROUND Ultrasound imaging systems operating close to 20 MHz in frequency have been used to image skin tumors. Ultrasound imaging at 20 MHz has been used to determine the boundaries of basal cell carcinomas (BCCs). An inherent shortcoming of imagi
Autor:
Kasia Harasiewicz, Lynn From, John W. Semple, Daniel H. Turnbull, F.S. Foster, Aditya K. Gupta, Daniel N. Sauder
Publikováno v:
Annals of Plastic Surgery. 34:599-606
The assessment of cutaneous melanoma in the clinical setting is often difficult, and important features such as depth and width remain unknown until the pathology report is received. Access to prognostic features such as vertical height before excisi
Autor:
John L. Semple, F. Stuart Foster, Brian Starkoski, Daniel H. Turnbull, Kasia Harasiewicz, Lynn From, Daniel N. Sauder, Aditya K. Gupta
Publikováno v:
Ultrasound in Medicine & Biology. 21:79-88
There is a growing interest in high resolution, subsurface imaging of cutaneous tissues using higher frequency ultrasound, and several commercial systems have been developed recently which operate at 20 MHz. Some of the possible applications of highe
Publikováno v:
Journal of Cataract and Refractive Surgery. 19:573-577
Transscleral fixation of posterior chamber intraocular lenses has become an increasingly popular procedure in eyes lacking adequate posterior capsular support. The assumption is generally made that these lenses are fixated in the ciliary sulcus. To t
Publikováno v:
Ophthalmology. 98:287-295
The authors have developed a method of obtaining images of cross-sections of the intact anterior globe at microscopic resolution. High-frequency ultrasound transducers (50-100 MHz) have been developed and incorporated into a clinical B-scan device ca
Publikováno v:
IEEE Ultrasonics Symposium, 2004.
This paper presents a new technique called interdigital phase bonding (IPhB) that has been developed to make 2-2 PZT composites of ultra-fine pitch for use as transducers and arrays operating at frequencies >30 MHz. By using the IPhB method, a compos
Autor:
Stuart Foster, Christiane Girard, David W. Holdsworth, Sheila Laverty, Mathieu Spriet, Kasia Harasiewicz
Publikováno v:
Osteoarthritis and cartilage. 13(2)
Summary Objective To evaluate high frequency (40MHz) B-mode ultrasound for the detection of osteoarthritis (OA) lesions of varying severity in an animal model of OA. Design Ultrasound biomicroscopy (UBM) was performed on the femoral articular surface
Autor:
F.S. Foster, Kasia Harasiewicz, J.G. Flanagan, R. Liu, Charles J. Pavlin, G.E. Trope, D. Knapik
Publikováno v:
1999 IEEE Ultrasonics Symposium. Proceedings. International Symposium (Cat. No.99CH37027).
This paper presents a method called Interdigital Pair Bonding (IPB) for the fabrication of 2-2 and 1-3 piezoelectric composites used in ultrasound transducers, especially for transducers for high frequency medical imaging. The principle of the IPB pr
Publikováno v:
IEEE 1992 Ultrasonics Symposium Proceedings.
The ultrasonic properties of ocular tissues including sclera, cornea, ciliary body and iris are studied over the frequency range from 50 to 100 MHz using the ultrasound backscatter microscopic technique. The scleral tissue shows the highest speed, th