Axial resolution refers to the ability to discern two separate objects that are longitudinally adjacent to each other in the ultrasound image; lateral resolution refers to the ability to discern two separate objects that are adjacent to each other; the lateral resolution is usually lower than the ...
there are 6 fetal toes instead of the normal 5 digits. Fetal polydactyly may be pre-axial or post-axial. Post-axial polydactyly is usually an isloated finding with no associated chromosomal anomalies in the fetus. However, pre-axial polydactyly may usually be associated with syndromes such as...
The composite image was formed by taking the maximum of each BURST image plane along the axial dimension and concatenating the resulting rows of pixels to form 2D composite image. Prior to dB scaling, a 3×3 median filter was applied to the composite image, followed by a Gaussian filter ...
(b) Sunflower distribution of the 256 elements projected in the XY plane; color-coding indicates depth (z direction). (c) A complete aquisition resulted from the repeated acquisition of N sequences. Each sequence (indexed with subscript k=1...N) consisted in the formation of M multispectral...
The best way to detect it with US is when the long axis of foot is in same plane as the long axis of the tibia and fibula [33]. Club foot may occur in isolation or in association with numerous other conditions, such as general musculoskeletal disorders, arthrogryposis, genetic syndromes,...
plane320. The axial direction AX is defined by the scan lines310, and the transducer (not shown) is located far back along the AX axis. Out at the voxels being imaged, the azimuthal direction AZ is perpendicular to the AX axis within the image plane320, and the elevation axis EL is ...
We ras- ter scanned the laser fiber sensor in the x-y plane over an area of 6.5 × 2.7 mm2 and keep others stationary. At each distance d, PA amplitudes over the scanned area are recorded to form an image. The sensitivity profile along the fiber direction remains ~2 mm...
Rezende-Filho ClÂõnica de Ultra-Sonografia Botafogo and Departamento de Ginecologia e ObstetrÂõcia da UFRJ, Rio de Janeiro, Brazil Uterine evaluation by means of 3D US is useful in classifying the main malformations, as it allows the visualisation of the frontal plane, impossible to ...
it was oriented to take pressure measurements in a direction normal to the active surface of the ImPULS device. We then manually advanced the device away from the hydrophone in the plane, measured distance with magnified images taken by a microscope camera mounted above the device and hydrophone,...
Abstract Germinal matrix-intraventricular haemorrhage (GMH-IVH), periventricular haemorrhagic infarction (PHI) and its complication, post-haemorrhagic ventricular dilatation (PHVD), are still common neonatal morbidities in preterm infants that are highly associated with adverse neurodevelopmental outcome. Typical...