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.

A-mode

amplitude modulation in diagnostic ultrasonography. It represents the time required for the ultrasound beam to strike a tissue interface and return its signal to the transducer. The greater the reflection at the tissue interface, the larger the signal amplitude on the A-mode screen. See also B-mode, M-mode.

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.

A-mode

amplitude mode. See A-mode ultrasonography.

References in periodicals archive ?

A-mode is the amplitude of the replicated wave, which represents the amount of the reflected ultrasound waves.

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

B-mode, or brightness modulation, scanning uses a linear array to produce a two-dimensional image by combining A-mode signals from various detections (Noce, 1990).

A comparison between skinfold callipers and ultrasound imaging for assessing body composition in recreationally active students

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

The solution: replace B2 cabinets with C1 cabinets to be used primarily in recirculating A-mode

The challenge of focusing on safety and sustainability: in the quest for both sustainability and safety in the academic lab, sometimes it's just about finding the right technology at the right time

Eye muscle area (EMA) was estimated by A-mode ultrasound scanning at 5 cm ventral to the dorsal point of the last thoracic vertebra.

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

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

At the time of testing, body weight was measured and ultrasound scanning on the back was made with A-mode (amplitude mode) scanners.

Genetic parameter estimation in seedstock swine population for growth performances

Although the two-dimensional SMG signal from ultrasound images is capable of detecting continuous muscle thickness changes, A-mode ultrasound, with a more portable and compact transducer, should be a less expensive and more practical alternative for detecting muscle thickness changes during contraction.

Dynamic monitoring of forearm muscles using one-dimensional sonomyography system

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