Difference Between Sonogram and Ultrasound

What is Sonogram?

There are various procedures available to supply images of body organs. These images are often used for medical analyses and to diagnose various diseases.

One such procedure is ultrasonography. A Sonogram may be a visual image generated during ultrasonography. The transmitted waves recover from tissues and organs. This echo is translated by a computer to get images of body organs, blood vessels, and tissues. These pictures are referred to as Sonograms.

The doctor then reads the Sonogram by identifying various parts of the visualized organs and searching for any abnormal conditions.

One can visualize the developing fetus on the Sonogram obtained. A radiologist identifies congenital anomalies within the growth of various parts of the fetus.

A Sonogram also tells you the expected date of delivery. It’s used to diagnose the increase or decrease in the volume of amniotic fluid.

What is Ultrasound?

Ultrasound may be a procedure done in medical science to produce images of body organs. It uses high-frequency sound waves —called ultrasound waves —to generate images of organs, soft tissues, blood vessels, and blood flow, from inside the body. Doctors use this image for medical analysis.

After x-ray exams, an ultrasound is the most commonly used form of diagnostic imaging. Doctors gain an understanding of the inner workings of the body.

It’s a safe, painless, and noninvasive procedure. it’s also known for being radiation-free and easily accessible.

During this procedure, high-frequency sound waves are beamed into the body which bounces back (echo) off tissue and organs. These echoes generate electrical signals that are translated by a computer to supply images of the tissues and organs.

 Most ordinarily, prenatal ultrasound is completed during pregnancy to check the health and development of the baby. it’s also done to detect certain complications and medical conditions related to pregnancy.

An ultrasound is additionally part of a biophysical profile (BPP), a test that mixes ultrasound with a nonstress test to evaluate if your baby is getting enough oxygen.

Difference Between Sonogram and Ultrasound

An ultrasound may be a tool while a sonogram is a technique used to diagnose medical conditions.

Ultrasound may be a medical procedure that generates images by reflecting high-frequency sound waves. A sonogram is a picture produced by ultrasonography. Thus, Ultrasound produces a Sonogram.

Ultrasound is the process, whereas a sonogram is the result of the process.

Ultrasound can’t be read or interpreted. A sonogram is often read by knowing the basics.

The procedure of ultrasound is to pass a high-frequency acoustic wave that is bounced back off tissue and organs. These echoes generate signals that are translated by a computer to supply images of local organs. A sonogram has got to be interpreted using knowledge of tissues and reflection of sound waves.

Comparison Between Sonogram and Ultrasound

Parameters of ComparisonSonogramUltrasound
What is it?TechniqueTool
DefinitionA Sonogram is a visual image generated during ultrasonography produced by bouncing back of the echo from tissues and organs.It is the medical procedure used to generate images of internal organs.
UseHelps physicians observe the growth of a fetus, calculate age and due date and see the presence of multiple fetuses. Also used to diagnose pelvic bleeding or locate cancerous cells.Used to produce sonograms. Can also be used to ensure uniformity of liquids and to determine the depth of water.
MethodologyInterpret the images with knowledge of how different types of tissues reflect sound waves.A transducer emits ultrasound waves of high frequency. These waves bounce back from organs to form images.


  1. https://www.sciencedirect.com/science/article/pii/S0079610706000812
  2. https://journals.lww.com/ccmjournal/Fulltext/2011/04000/Current_role_of_emergency_ultrasound_of_the_chest_.32.aspx