axial resolution

axial resolution

the ability of an ultrasound system to separate two objects lying along the axis of an ultrasound beam.

axial resolution

The spatial resolution of an image in the direction of ultrasound propagation in pulse-echo ultrasonography, which is determined primarily by the duration of the ultrasonic pulse.

The ultrasonic pulse is the period of time of mechanical reverberation of the transducer after electric stimulation; ≥ 2 objects or organs aligned in the axial direction cannot be distinguished if they are separated by ≤ half a pulse length; autosomal recessive is believed to have reached its maximum with the introduction of modern ferroelectric ceramic transducers, which have improved backing and matching layers.
References in periodicals archive ?
They demonstrated that the axial resolution was higher in AS-OCT compared to USB and that AS-OCT was superior in visualizing lesions involving the lateral and anterior aspects of the iris.
The functionality and potential of time-domain (TD-OCT) machines was limited due to slow scanning speeds of 400 A-Scans per second and an axial resolution of 10[micro]m.
The new method of OCT, termed as Master/Slave (MS), is characterised by several advantages: direct production of an en-face OCT image, tolerance to dispersion that allows MS-OCT to achieve the theoretical limit of axial resolution and sensitivity that can be tailored for no hardware and time cost, with the axial resolution.
The axial resolution is best when groups of waves emitted have a short wave length.
In 2005, Leica introduced the first super-resolution microscope, the 4Pi, which, for the first time, offered a major improvement in axial resolution and set the stage for STED.
5 Axial resolution, [micro]m 7 15 Image rate, images/s 0.
High axial resolution is also available for measuring complex structures and Hexagon says the sensor is suitable for complex applications such as measuring glass or plastic lenses, surfaces and profiles.
The development of confocal technique associated with classical Raman spectrometer has considerably improved spatial resolutions in particular axial resolution.
The N-STORM instrumentation will be capable of multi-spectral two-dimensional and three-dimensional nanoscopy, with lateral resolution to approximately 20nm and axial resolution to approximately 50nm, extending the role of the optical microscope to near molecular level resolution.
It can be observed that mapping of frequency based parameter is able to improve lateral resolution up to two times at the price of decreasing the axial resolution which becomes worse up to four times.
Cells were prepared for CLSM, and a deconvolution algorithm was applied to increase lateral as well as axial resolution.
NRS roller screw high efficiency and shallow lead designs provide very high axial resolution (small axial movement) with a multitude of contract points for carrying large loads.