Results 281 to 290 of about 807,037 (310)

Open-legs axial plane: A standardized methodology and reference values for fetal genital biometry in mid-trimester ultrasound.

European Journal of Obstetrics, Gynecology, and Reproductive Biology, 2021
BACKGROUND Evaluation of the external genitalia is an important part of prenatal ultrasound. However, there is no standardized methodology that includes biometric measurements and normative data to be able to carry out this evaluation.
Á. López-Soto, J. L. Meseguer-González, Javier Garví-Morcillo, Antonio Beltrán-Sánchez, Ángeles Jódar-Pérez, Inmaculada Martínez-Rivero, Olivia García-Izquierdo, M. Urbano-Reyes, Rocío López-Pérez, J. Martínez-Cendán   +9 more
semanticscholar   +1 more source

Assessment of Fetal Biometry Using Ultrasound Images

2020 IEEE International Conference on Advances and Developments in Electrical and Electronics Engineering (ICADEE), 2020
Assessment of the fetal biometry is one of the important tasks during every phase of pregnancy. The fetal biometry obtained from the fetal Ultrasound images demands well trained and skilled sonographers for the accurate measurements. The fetal biometry are obtained by drawing circles and lines using cursor on the images which may lead to inaccurate ...
Monica R, Nirmala K, VijayJeya Kumar, Divya B   +3 more
openaire   +1 more source

B-Scan Biometry and Color Doppler Ultrasound Imaging of the Eye in Clinically Normal Donkeys (Equus asinus): Effect of Laterality, Maturity and Gender.

Journal of Equine Veterinary Science, 2021
Despite the extensive research on ocular ultrasonography, there is paucity of information regarding ocular biometry and color Doppler imaging of the donkey's eye.
M. N. Wafy, E. Hassan, A. A. El-Maaty, A. Abu‐Seida   +3 more
semanticscholar   +1 more source

Reference Ranges for Vermis Biometry on Prenatal Ultrasound: Systematic Review and Meta-Analysis

Ultraschall in der Medizin - European Journal of Ultrasound, 2021
Purpose To conduct a systematic review and meta-analysis of published nomograms for fetal vermis biometry. Materials and Methods A structured literature search was conducted to identify studies that reported normal measurements of the fetal vermis.
J. Rosenbloom, Lauren H. Yaeger, S. Porat   +2 more
semanticscholar   +1 more source

Ultrasound biometry and deprivation myopia

1993
Lid-suture has been demonstrated as a myopia-inducing mechanism in young experimental animals, and deprivation myopia is now considered a keyword in myopia pathogenesis. As human counterparts we might expect the development of many cases of axial myopia in patients with obstacles to clear retinal image formation in early life, although there have been ...
H. C. Fledelius, E. Goldschmidt
openaire   +1 more source

[Ultrasound biometry in childhood].

Klinische Monatsblatter fur Augenheilkunde, 1988
Within the last 18 months the authors have measured, in cases of juvenile cataract seen by them, the axial length of the eye and other parameters. As a control group, children from the authors' squint clinic, with various refractive errors, were examined.
P, Niederreiter, U M, Klemen, J, Leitner
openaire   +1 more source

Ultrasound biometry and fetal growth restriction

Fetal and Maternal Medicine Review, 2002
With the ascendancy of biophysical assessment with Doppler velocimetry, and the establishment of routine scan dating in early pregnancy, there needs to be a radical re-think of the role of ultrasound biometry in the definition and assessment of fetal growth restriction (FGR).Doppler flow velocimetry of the umbilical artery has proven its value in ...
openaire   +1 more source

Ultrasound biometry in the diagnosis of amblyopia in keratoconus

Contact Lens and Anterior Eye, 2006
Here, we describe a case in which A-scan ultrasound biometry was used to differentially diagnose the cause of reduced vision in a patient with keratoconus. A patient with keratoconus presented with reduced visual acuity in one eye, not improvable above 6/18 with specialist keratoconus contact lens fitting.
Abdullah M, Assiri, Bakri I, Yousuf, J Margaret, Woodhouse, Andrew J, Quantock, Paul J, Murphy   +4 more
openaire   +2 more sources

Biometry/Axial Length in Ophthalmic Ultrasound

Journal of Diagnostic Medical Sonography, 1999
Biometry/axial length is an A-scan measurement from theeleading edge of cornea to the leading edge of the retina. This measurement is used to calculate the implant power of the intraocular lens (IOL). The biometry examination is a primary Wand essential part of cataract extraction and IOL surgery.
openaire   +1 more source

[The reliability of ultrasound biometry].

Klinische Monatsblatter fur Augenheilkunde, 1990
Preoperative ultrasonic biometry is indispensible in cataract surgery in order to calculate the power of the intraocular lens to be implanted. Various authors have suggested that the accuracy of the measurements could be improved by performing biometry several times and basing the calculation of the lens on the mean value.
U, Giers, C, Epple
openaire   +1 more source