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 ?
HDi's improved image quality is due to a combination of its proprietary 60 MHz transducer and powerful state-of-the-art signal processing, which deliver imaging at high axial resolution (<40 om versus the ~100 om of other IVUS systems) and with minimized image noise, without the need for vessel clearing.
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.
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 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.
Cells were prepared for CLSM, and a deconvolution algorithm was applied to increase lateral as well as axial resolution.
Multiphoton microscopy also yields high-resolution images, but with even higher axial resolution, greater sample penetration, reduced photobleaching of marker dyes and increased cell viability.
The clinical significance of this relationship is that axial resolution of ultrasound, which is the ability to distinguish 2 objects that are close to each other in a plane parallel to the ultrasound beam (ie, the vertical axis on the monitor), is related to wavelength and thus to frequency.
In fact, LightLab OCT provides intravascular images with 15 micrometers axial resolution, about twice the size of a red blood cell.
The SPOCT HR has three micron axial resolution which, when combined with advanced analysis algorithm, makes SPOCT HR state-of-the art in SPOCT technology.
In fact, LightLab OCT provides intravascular images with 15 micrometer axial resolution, about twice the size of a red blood cell.