All You Need to Know About Ultrasound Scans for Accurate Diagnosis
When you undergo an ultrasound scan, you will likely hear the phrase how ultrasound works. However, what it means depends on sound waves and a computer creating live images of your body. These images are vital for healthcare providers, and a recent study suggests that ultrasound use has increased significantly, with a 20% increase in India 1. The data highlights how accessible ultrasound tests have become, making them a critical diagnostic procedure in India.
In this blog, we will understand how an ultrasound scan works, its types, and the benefits it offers patients seeking diagnostic imaging.
Key Takeaways:
- Ultrasound scans use high-frequency sound waves to produce real-time images, helping healthcare providers diagnose a wide range of conditions.
- Both pregnancy and diagnostic ultrasounds provide vital information, monitoring fetal development and assessing organs, tissues, and blood vessels.
- Ultrasound imaging is non-invasive, cost-effective, and radiation-free, offering a safe and reliable method for accurate diagnostics.

How Does an Ultrasound Scan Work?
When you are going through an ultrasound (USG) scan, a healthcare provider passes a device known as the transducer or probe over a body area. The next step is the application of a thin layer of gel to your skin to transmit ultrasound waves from the transducer into the body.
The probe converts electrical currents into high-frequency sound waves and sends waves into body tissues. A computer then converts electrical signals into accurate images, which are analysed by your healthcare professional.
What are the Types of Ultrasound Scans?
There are two major ultrasound imaging categories, which include pregnancy ultrasound and diagnostic ultrasound imaging. Pregnancy ultrasounds monitor fetal health, while diagnostic ultrasounds assess internal organs and tissues for various conditions.
Here’s a comprehensive view of the types of ultrasound scans for your overview:
1. Pregnancy Ultrasound
Diagnostic professionals often use ultrasound scans, which are also known as obstetric or prenatal ultrasound, to monitor the condition of the fetus during pregnancy.
- Prenatal ultrasounds are useful to confirm pregnancy and assess the presence of several fetuses.
- Assessment of the fetal growth and position, focusing on movement and heart rate.
- Appropriate examination of any form of congenital conditions, such as birth defects in the fetal brain, spinal cord, and heart.
- Ultrasounds are also useful for measuring the amount of amniotic fluid present.
Note: It is recommended to take an ultrasound scan at 20 weeks of pregnancy to check the development of the fetus.
2. Diagnostic Ultrasound
Diagnosis using ultrasound scans is effective to assess the internal parts of your body and isolate symptoms such as unexplained pains, lumps, and more.
- Abdominal Ultrasound: The ultrasound probe moves across the abdomen to diagnose the cause of abdominal pain.
- Renal Ultrasound: The test is critical to understand the size, shape, and location of your kidneys. Moreover, it helps detect cysts, obstructions, or tumours within the kidneys.
- Pelvic Ultrasound: The test is vital for assessing the lower abdomen, including the bladder, prostate, rectum, ovaries, uterus, and vagina.
- Thyroid Ultrasound: The examination is vital for assessing the thyroid gland and detecting nodules or lesions.
Also read: Comprehensive Radiology Care in India: Eskag Sanjeevani Radiology’s Impact on Diagnostics
Primary Uses for an Ultrasound Scan
Ultrasound scans are useful for detecting and diagnosing conditions and are useful for developing a treatment strategy. Moreover, it provides detailed insights into the thyroid, liver, muscles, and blood vessels, aiding in accurate diagnosis.
Here are some of the common uses:
- Examination of organs, such as the thyroid glands, the breast, the prostate, and the liver.
- Examination of muscles, tendons, and ligaments is useful for assessing sprains, strains, trapped nerves, and muscle tears.
- Appropriate monitoring of blood flow, blood clots, aneurysms, and the narrowing of arteries.
- An effective diagnostic process for isolating the correct position for invasive procedures, such as a biopsy.
Now, let’s understand how you can prepare yourself for an ultrasound scan.
How do You Prepare for an Ultrasound Scan?
Before an ultrasound scan, your healthcare provider may ask you to avoid eating or drink plenty of water, depending on the area being examined.
Here are some of the key considerations to keep in mind before preparing for an ultrasound scan:
- It is essential to keep all your documents in hand, including any previous test reports, and to mention them before going for a test.
- During some ultrasound procedures, you may need to fast or drink a lot of water before commencing the procedure. Therefore, it is essential to consult your healthcare professional before undergoing an ultrasound.
- It is essential to keep all your jewellery and belongings in a safe place before going for an ultrasound procedure.
Next, let’s explore some of the core benefits of an ultrasound procedure.
Benefits of an Ultrasound Procedure
Ultrasound procedures are highly versatile, enabling real-time monitoring during medical procedures such as biopsies. They offer excellent imaging quality without the discomfort of other diagnostic methods, ensuring a smoother patient experience.
Here are some of the advantages of an ultrasound examination:
- Ultrasound processes do not cause significant discomfort for patients and do not require incisions, needles, or other invasive procedures.
- There is absolutely no use of ionising radiation in ultrasound procedures, and the method is not dangerous for patients compared to conventional diagnostic imaging. Moreover, there is no adverse effect associated with ultrasound scans.
- Ultrasound processes are cheaper than conventional imaging for diagnosis, and the overall accessibility of the test is much higher than for other procedures.
Are There Any Risks for an Ultrasound Examination
There is no radiation involved in the ultrasound process, and therefore, it is considered safe for patients and is a routine procedure for pregnant women. The sound waves used for the process are beyond the threshold of human hearing, and therefore, the process does not cause any harm to human beings.
Why Choose Eskag Sanjeevani Radiology for Ultrasound Scans
When choosing an ultrasound scan provider, it’s essential to find a facility that offers precise imaging, quick turnarounds, and clear communication. Concerns about long wait times, unclear results, or insufficient explanation are common, but they can be avoided with proper research. Ensure you opt for a centre that prioritises patient comfort and provides timely, understandable reports, guiding you through the results with confidence.
Eskag Sanjeevani Radiology stands out for its comprehensive range of imaging services, including ultrasound scans, CT, MRI, and digital X-ray, all performed using advanced technology. The facility operates with a commitment to convenience, offering 24×7 ambulance and emergency services, allowing flexible scheduling for your scans. With a focus on accurate diagnostics and patient satisfaction, Eskag Sanjeevani Radiology is your trusted partner for reliable ultrasound imaging and more.
References
Ultrasound scans are used to examine internal organs, monitor fetal development, and assess blood flow. They can help diagnose conditions like abdominal pain, heart issues, and joint injuries by providing real-time images.
Preparation for an ultrasound varies depending on the area being examined. For some scans, you may need to fast or drink water to fill the bladder, while for others, no special preparation is required; always follow your healthcare provider’s instructions.
Yes, ultrasound can detect tumours in organs such as the liver, breast, or kidneys. However, it may not always provide detailed information about the tumour’s nature, so further tests like CT or MRI may be needed for a clearer diagnosis.
An ultrasound typically takes between 15 to 30 minutes, depending on the area being examined. Complex scans or multiple areas may take longer, but the procedure is usually quick and non-invasive.
Ultrasound cannot effectively detect certain conditions, such as bone fractures, lung diseases, or certain neurological disorders. For these, CT scans or MRIs are more suitable imaging options for accurate diagnosis.

