FAQ - USG
Q1. What is ultrasound?
A. Ultrasound or sonography, involves the use of high frequency sound waves (not X-rays) to obtain diagnostic images. Ultrasound imaging is used to evaluate many parts of the body, including the abdomen, blood vessels, fetus of pregnant women, superficial body structures, and newborn brain to name only a few.
Q2. What an ultrasound used for?
A. Ultrasound may be used among other things, to detect and investigate:
- all diseases of the organs of the abdominal cavity in early stages.
- tumors of uterus and ovaries and abnormalities of reproductive organs.
- maturation of eggs and changes of endometrium in different stages of menstrual cycle.
- early pregnancy, including entopic pregnancy.
- development of fetuses and possible malformations of fetuses.
- position of the foetus, position of the placenta in the uterus and changes in it. It is also possible to estimate the quantity of amniotic fluid, evaluate heart function and breathing movements of the foetus.
Q3. How is an ultrasound performed?
A. For most ultrasound exams, the patient is positioned lying face-up on an examination table that can be tilted or moved. A clear gel is applied to the area of the body being studied to help the transducer make secure contact with the body and eliminate air pockets between the transducer and the skin. The sonologist or radiologist then presses the transducer firmly against the skin and sweeps it back and forth over the area of interest. Doppler sonography is performed using the same transducer. When the examination is complete, the patient may be asked to dress and wait while the ultrasound images are reviewed. However, the sonographer or radiologist is often able to review the ultrasound images in real-time as they are acquired and the patient can be released immediately. In some ultrasound studies, the transducer is attached to a probe and inserted into a natural opening in the body. These exams include:
- Transesophageal echocardiogram: The transducer is inserted into the esophagus to obtain images of the heart.
- Transrectal ultrasound: The transducer is inserted into a man’s rectum to view the prostate.
- Transvaginal ultrasound: The transducer is inserted into a woman’s vagina to view the uterus and ovaries.
Most ultrasound examinations are completed within 30 minutes to an hour.
Q4. Is sonography harmful? Does it have any limitations?
A. No harmful effects of sonography are known even on the embryo of the foetus of a pregnant woman. Ultrasound waves cannot penetrate air & bone and hence sonography has limited applications in regions like the skull and chest.
Q5. What will I experience during and after the procedure?
A. Most ultrasound examinations are painless, fast and easy. After you are positioned on the examination table, the radiologist or sonologist will spread some warm gel on your skin and then press the transducer firmly against your body, moving it back and forth over the area of interest until the desired images are captured. There may be varying degrees of discomfort from pressure as the transducer is pressed against the area being examined. If scanning is performed over an area of tenderness, you may feel pressure or minor pain from the procedure.
Ultrasound exams in which the transducer is attached to probe and inserted into an opening of the body may produce minimal discomfort.
If a Doppler ultrasound study is performed, you may actually hear pulse-like sounds that change in pitch as the blood flow is monitored and measured. Once the imaging is complete, the gel will be wiped off your skin. After an ultrasound exam, you should be able to resume your normal activities.
Q5. What is Colour Doppler?
A. Colour Doppler is colour-encoded sonography of the blood vessels. Blood flow is seen in colour. It is like sonography and there is no involvement of any injection of contrast.
Q6. What is 3D sonography?
A. 3D sonography is 3 Dimensional display of the surface of a structure like a foetal face/spine or any other part of the body.
Q7. What is endovaginal sonography?
A. It is sonography done for better visualisation of the uterus & the ovaries. A high-resolution endovaginal probe is inserted into the vagina for this examination. It is not painful. It is done as a routine at our centre as it is observed that at times even fairly prominent lesions can be missed if only trans-abdominal sonography is performed.
It does not require a full bladder.
Q8. Is dating and weight estimation 100% accurate?
A. Dating and weight estimation are just estimates based on statistical data of the baby size. It is not 100% accurate but predicts the dating and weight estimation up to +/- 10%.
Q9.When do I get the results?
A. When the test is complete, the sonologist and the radiologist will review the ultrasound images on film or on a computer monitor. You will then be asked to collect your report on a specified time.
- Sonography is a non–invasive imaging modality using sound waves and is extremely safe even in pregnancy as it does not involve any radiation.
- Sonography has applications for the entire body from head to toe. Male or female, from infant to adult, throughout your lifetime, sonography can play an important role in your healthcare.
- Indeed, versatile, safe, non-invasive and yet effective, the importance of ultrasonography in medicine cannot be underplayed.
Equipment used at BABINA Diagnostics:
- GE VOLUSON 730 Pro
- Toshiba iStyle
- Harmonic imaging, spectral, color and Doppler imaging, Compound Resolution Imaging High-resolution 2D, volumetric 3D and real-time 4D imaging
- Carotid colour doppler & Transcranial doppler
- Peripheral arterial & venous colour doppler
- Abdominal Colour Doppler
- Pregnancy Colour doppler
- More Information, Better Image Quality
- Faster Examination
- High resolution images for detection of subtle abnormalities
- Vascular information
Online instructions for Sonography
For sonography of Pelvis
- Patient should consume 3 – 4 glasses of water ½ to 1 hour prior to examination.
- Urine collects in the bladder over this time. Excessive water should not be consumed as it may lead to vomiting and does not serve the purpose.
- Full bladder permits better evaluation of the urinary bladder itself, the prostate gland and seminal vesicles in males and the uterus, ovaries and adnexa in females.
- Gall Bladder study requires overnight fasting.
- All other examinations do not require any specific preparation.
- Full bladder is required upto 10 – 12 weeks of pregnancy. The urinary bladder need not be very full thereafter.
- There are no clothing restrictions. It is advisable to wear something loose and comfortable.
- It is advisable to come 10-15 minutes prior to the appointment to ensure smooth and relaxed procedure.