Diagnostic ultrasound, also called sonography or diagnostic medical sonography, is an imaging method that uses high-frequency sound waves to produce images of structures within your body. The images can provide valuable information for diagnosing and treating a variety of diseases and conditions.
Ultrasound exams require no preparation, with a few exceptions:
- You may be asked to not eat anything or drink anything for around 6 hours before the ultrasound examination is done in cases like Ultrasonography of gall bladder.
- A full bladder is required before examinations like Ultrasonography of pelvis and you can be told to drink around 6 glasses of water (750ml-1litre) one hour before ultrasound examination and not to go for urination before the ultrasound examination is performed. When scheduling your ultrasound, ask your doctor for specific instructions for your exam.
During an ultrasound examination you may be asked to take off your jewelry and change your clothing to hospital dress. During the ultrasound procedure a gel is applied over the body part to be examined to ensure no air pockets are between the probe and the skin, which could hamper the ultrasound results.
The handheld transducer which is of the size of a bar of soap is placed by the radiologist over the skin after applying gel over the part of body of which the ultrasound examination is to be performed. The transducer is moved by radiologist to get the desired images of the organ or tissue under study. Sound waves are sent and then collected back from your body by the transducer and the sound waves collected back are sent to a computer that develops an image.
Some ultrasound examination may require insertion of probes inside the body through natural openings of the body.
- Transesophageal echocardiogram:A transducer is inserted into your esophagus, usually with sedation, to obtain heart images.
- Transrectal ultrasound:A transducer is inserted into a man’s rectum to view his prostate.
- Transvaginal ultrasound:A transducer is inserted into a woman’s vagina to view her uterus and ovaries.
Ultrasound is usually painless. However, you may experience mild discomfort as the sonographer guides the transducer over your body, especially if you’re required to have a full bladder. A typical ultrasound exam takes from 15 to 30 minutes.
For any further information on Ultrasonography (USG) examination or appointment at Aditya Birla Memorial Hospital (ABMH), please call us at +91-20-30717686.