Results 171 to 180 of about 7,765 (207)

In vivo biomicroscopy with ultrasound 2

Ultrasonics, 1990
In the first article of this series it was shown that the use of inverse scattering theory to analyse ultrasound reflections could provide high resolution images of the acoustic impedance profile of the retina. Unlike the retina, most tissue structures of interest, like small tumours and arterial plaque deposits, are shielded from view by intervening ...
K, Santosh, W, Tobocman, E M, Haacke, F, Boada   +3 more
openaire   +2 more sources

Clinical Use of Ultrasound Biomicroscopy

Ophthalmology, 1991
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 capable of producing images in the living human eye to a depth of approximately 4 mm at an axial and ...
C J, Pavlin, K, Harasiewicz, M D, Sherar, F S, Foster   +3 more
openaire   +2 more sources

Ultrasound Biomicroscopy and Histopathology of Sclerocornea

Cornea, 1998
We present a clinicopathologic case report of sclerocornea with the intent of showing the usefulness of ultrasound biomicroscopy (UBM) and the correlation of histopathologic findings.An infant with congenital bilateral sclerocornea was seen for an evaluation under anesthesia.
T, Kim, E J, Cohen, B M, Schnall, E L, Affel, R C, Eagle   +4 more
openaire   +2 more sources

Ultrasound biomicroscopy in refractive surgery

Journal of Cataract and Refractive Surgery, 1994
The need for improved methods of assessing corneal topography arose from the advent of refractive surgery. Ultrasound biomicroscopy (UBM) is a high-resolution technique that uses high-frequency transducers to evaluate the cornea. We conducted a pilot study to assess the cornea after refractive surgery using UBM.
J, McWhae, A, Willerscheidt, H, Gimbel, M, Freese   +3 more
openaire   +2 more sources

Ultrasound Biomicroscopy in Strabismus Reoperations

Journal of American Association for Pediatric Ophthalmology and Strabismus, 2006
To evaluate the accuracy of ultrasound biomicroscopy (UBM) for measuring the insertional distance from the limbus of horizontal extraocular muscles (EOM) that had previous surgery.This prospective, masked, observational study compared the distance of the horizontal EOM insertion from the limbus as measured by 50-MHz UBM, either preoperatively or at the
Dai, Shuan, Kraft, Stephen P., Smith, David R., Buncic, J. Raymond   +3 more
openaire   +4 more sources

In vivo ultrasound biomicroscopy

1993 Proceedings IEEE Ultrasonics Symposium, 1993
A very high frequency ultrasonic biomicroscopy system (30-130 MHz) using a B-scan combined with a new Z-scan technique for in vivo imaging of the skin has been developed. To get high lateral resolution and a good signal to noise ratio, we utilized a very narrow focused single element ceramic transducer as used in conventional acoustic microscopy ...
C. Passmann, H. Ermert, T. Auer, K. Kaspar, S. el-Gammal, P. Altmeyer   +5 more
openaire   +1 more source

ULTRASOUND BIOMICROSCOPY

Ophthalmology Clinics of North America, 1998
J LIEBMANN, R RITCH, K ESAKI
openaire   +2 more sources

Ultrasound Biomicroscopy in Glaucoma

2016
Ultrasound biomicroscopy (UBM) is a high-resolution ultrasound technique, which allows noninvasive in vivo imaging of the anterior ocular segment. It shows excellent images of the anterior chamber angle, and the ciliary body. In glaucoma, UBM can be used to image the changes of the ocular structures after glaucoma surgery, such us filtering blebs and ...
Julián García-Feijoo, Carmen Méndez-Hernández, José María Martínez de la Casa, Federico Sáenz-Francés, Rubén Sánchez-Jean, Julián García-Sánchez   +5 more
openaire   +1 more source

Biomicroscopy, Ultrasound

2012
Wolfgang Herrmann, Thomas Kohnen
openaire   +1 more source

Ultrasound Biomicroscopy

Tim Berger, Zaynab Khattabi, Ursula Löw, Berthold Seitz   +3 more
  +4 more sources