Ultrasound Knowledge

This section provides essential ultrasound knowledge a future ultrasound technician ought to know about before deciding whether or not to enter this field. Our list of featured articles explains how ultrasound machines work, ultrasound history, different uses of ultrasound, different types of ultrasound imaging, the known risks and benefits of ultrasound, and the future of this technology within the healthcare field.




The History of Ultrasound

Ultrasund History

The earliest notions of ultrasound were developed in the late 19th and early 20th centuries in Europe. In particular, the French government during World War I assigned physicist Paul Langevin the task of creating a device capable of detecting underwater enemy submarines using high-frequency sonar. Over the next few decades, many experimented with the military, … [Read more...]

What is an Ultrasound?

What is an Ultrasound

What is an Ultrasound?Those interested in sonography will benefit from knowing in greater detail how ultrasound works. The term itself refers to sound wave frequencies that are beyond 20,000 hertz, which is considered the upper limit of hearing in humans. Medical sonography is the transmission of high-frequency sound waves into the body and the conversion of the … [Read more...]

How Does an Ultrasound Machine Work?

Parts of Ultrasound Machines and Workflow

An ultrasound scanner consists of a number of components including a transducer probe, a central processing unit (CPU), a monitor, a keyboard with control knobs, disk storage devices, a printer and so on. The most essential component is the transducer probe. This probe both produces the sound waves used in ultrasound and receives their echoes back. It does so by … [Read more...]

4 Types of Medical Ultrasound Imaging You Should Know

Ultrasound Technician Imaging

The twelve major types of ultrasound procedures described in other articles, make use of four kinds of available ultrasound image. The choice of which type of image to use depends on the goals for a particular test, the phenomena being investigated and what equipment is available. 2D Ultrasound The most common and type of ultrasound picture is a series of flat, … [Read more...]

The Risks, Benefits and Future of Ultrasound

Ultrasound Benefits Risks Future

Although this website focuses on sonography as a career, another recurring theme was the many benefits of ultrasound procedure itself – benefits that will cause a high demand for sonographers both now and in future. Benefits Compared with other diagnostic tools, ultrasound is considered safe and produces no side effects. It does not expose patients to ionizing … [Read more...]

Types of Ultrasound: Uses and Limitations of Abdominal Ultrasound (Part 1 of 12)

Abdominal Ultrasound

This section with 12 short articles offers a systematic survey of the uses and limits of common types of ultrasound scans. In some cases, it builds on information presented earlier in the article 10 Types of Ultrasound Specialists to give a more complete picture of the capabilities of this powerful diagnostic tool as well as those contexts in which it has drawbacks or … [Read more...]

Types of Ultrasound: Uses and Limitations of Vascular Ultrasound (Part 2 of 12)

Vascular Ultrasound is used to evaluate the veins, arteries and blood flow of the body. Vascular sonographers employ ultrasound to detect plaque accumulation, blood clots, embolisms, blockages and similar problems. Vascular sonography can detect deep venous thrombosis, which is the presence of blood clots in major arm or leg veins. It allows doctors to determine if … [Read more...]

Types of Ultrasound: Uses and Limitations of Sonohysterography (Part 3 of 12)

Sonohysterography, also referred to as hysterosonography or saline infusion sonography, is a type of pelvic ultrasound procedure that involves scanning the interior of a woman’s uterus using a transvaginal probe inserted into the vagina. To obtain ultrasound images of this area, a baseline scan is performed after which the uterus is injected with sterile saline fluid … [Read more...]

Types of Ultrasound: Uses and Limitations of Pelvic Ultrasound (Part 4 of 12)

Pelvic Ultrasound is used to obtain images of organs, tissues and structures of the lower abdominal and pelvic areas. These ultrasound pictures can be generated by using a probe on the surface of the abdomen, by inserting a vaginal probe in women, and by using a rectal probe for men. For women, a pelvic ultrasound is used to assess abnormal bleeding and other … [Read more...]

Types of Ultrasound: Uses and Limitations of Thyroid Ultrasound (Part 5 of 12)

Thyroid Ultrasound

Thyroid Ultrasound scans use a small, high-frequency transducer probe to yield images of the thyroid gland, one of the organs of the body’s hormone-regulating endocrine system. The thyroid gland is crucial in regulating heart rate and a number of other essential functions. It is subject to abnormalities that can be evaluated using ultrasound including lumps on the … [Read more...]