A-mode

(mōd),

In diagnostic ultrasound, a one-dimensional presentation of a reflected sound wave in which echo amplitude (A) is displayed along the vertical axis and echo delay (depth) along the horizontal axis; the echo information derives from tissue interfaces along a single line in the direction of the sound beam.

Farlex Partner Medical Dictionary © Farlex 2012

A-mode

(mōd)

diagnostic ultrasound A one-dimensional presentation of a reflected sound wave in which echo amplitude (A) is displayed along the vertical axis and time of rebound (depth) along the horizontal axis; the echo information is presented from interfaces along a single line in the direction of the sound beam.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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References in periodicals archive

Abstract: To establish reference standards for ocular ultrasound and biometry, 24 cinereous vultures (Aegypius monachus) (45 eyes) underwent B-rnode and A-mode ultrasonographic examination using a 12.5-MHz probe.

Ocular Ultrasonography and Biometry in the Cinereous Vulture (Aegypius monachus)

Typically, three modes are obtainable in the ultrasonic diagnosis systems; there are A-mode, B-mode and M-mode.

A squat energy oscillator based readout edge with CMUT technique for medicinal applications

A prominent example is a single fibre optical coherence tomography (OCT) development, which delivers A-mode measurements of the distance between the fibre and the retina (see Figure 3B iii).

Keeping an eye on robotics: emerging vitreoretinal surgical platforms

A-mode ultrasonic biometry using 10 MHz linear transducer in amplitude mode was used to measure different intraocular distances (anterior chamber depth, lens thickness and axial length).

Keratometry - A Scan and Prediction of IOL Lens Power in Felines

At the time of performance testing, ultrasound scanning of the back was conducted with amplitude mode (A-mode) scanners.

Genetic parameters of pre-adjusted body weight growth and ultrasound measures of body tissue development in three seedstock pig breed populations in Korea

An A-mode, or amplitude-mode, transducer relies on a narrow beam to scan tissue discontinuity and produces a spike on a graph.

Ultrasound as a tool to assess body fat

The transducer was placed in a longitudinal position (sagittal plane) until optimal Bscan images, according to echoes of the A-mode, were obtained.

Ultrasonographic and ecobiometric findings in the eyes of adult goats/Achados ultrasonograficos e ecobiometricos em olhos de cabras adultas

Although this control strategy works well, in future work we will simulate the SEMG-based 1-DOF prosthetic hand to collect the SMG from both the extensor and flexor with a multichannel A-mode ultrasound system for higher control accuracy.

Feasibility of controlling prosthetic hand using sonomyography signal in real time: preliminary study

A statistical approach and parameters of A-mode were used for image texture analysis.

Investigation of the possibility of eye orbit tissue pathology classification/Orbitiniu akies audiniu patologijos klasifikavimo galimybiu tyrimas

An A-mode SOU was not performed because of the patient's lack of cooperation.

Detection of sinus-induced orbital mycosis with standardized orbital ultrasonography: A case report