Sonography (Pregnancy Anomaly Level 2)
"Ultrasound ( Sonography or Ultrasonography ) is a medical diagnostic test which makes use of high frequency sound waves along with a computer to take out images of organs, tissues as well as blood vessels. What happens in Ultrasound ( Sonography or Ultrasonography ) test is that the sound waves tend to bounce off the body parts on which they are projected and thus send back images which help doctors diagnose the problem. The process works on various organs including breasts, pelvic area, prostate, thyroid, scrotum and vascular system.
Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. Besides medicine, Ultrasound ( Sonography or Ultrasonography ) is used in several other fields as well. For example, the ultrasonic devices are put into use to measure distances as well as detect objects. It is also used in nondestructive tests made on structures and objects, in several industries for mixing, cleaaning and other processes.
There are various kinds of Ultrasound/Sonography diagnostic tests and some include the following: Ultrasonography ( USG ) ABDOMEN 3D/4D, Sonography ABDOMEN 3D/4D, Ultrasonography ( USG ) AMNIOTIC FLUID INDEX, Sonography AMNIOTIC FLUID INDEX and Ultrasound AMNIOTIC FLUID INDEX."
The following are some steps that are to be taken in order to prepare for an Ultrasound ( Sonography or Ultrasonography ) test:
Usually, doctors ask people to fast for about 8 to 12 hours before their ultrasound test and especially if the ultrasound is of the abdomen. This is requested to avoid blockage of sound waves due to undigested food.
For the Ultrasound of the liver, pancreas, gallbladder or spleen etc, one is asked to eat a meal that is fat free on the evening before the test is to be performed.
For other types of Ultrasound tests, one is asked to drink a lot of water and hold the urine so that the bladder is full and thus better images are obtained.
One is also asked to inform the doctor about illnesses, injuries, overall medical condition, prescription drugs and other medical history.
Before the exam, you will change into a hospital gown. You will most likely be lying down on a table with a section of your body exposed for the test.
An ultrasound technician, called a sonographer, will apply a special lubricating jelly to your skin. This prevents friction so they can rub the ultrasound transducer on your skin. The transducer has a similar appearance to a microphone. The jelly also helps transmit the sound waves.
The transducer sends high-frequency sound waves through your body. The waves echo as they hit a dense object, such as an organ or bone. Those echoes are then reflected back into a computer. The sound waves are at too high of a pitch for the human ear to hear. They form a picture that can be interpreted by the doctor.
Depending on the area being examined, you may need to change positions so the technician can have better access.
After the procedure, the gel will be cleaned off of your skin. The whole procedure typically lasts less than 30 minutes, depending on the area being examined. You will be free to go about your normal activities after the procedure has finished.
Following the exam, your doctor will review the images and check for any abnormalities. They will call you to discuss the findings, or to schedule a follow-up appointment. Should anything abnormal turn up on the ultrasound, you may need to undergo other diagnostic techniques, such as a CT scan, MRI, or a biopsy sample of tissue depending on the area examined. If your doctor is able to make a diagnosis of your condition based on your ultrasound, they may begin your treatment immediately.
Ultrasound is considered to be an extremely safe procedure which is being done for the last 20 years. It has a good safety record and involves non-ionizing radiation.
As mentioned above, there are many uses and benefits of this test including diagnosis of injuries, illnesses, cysts, fibroids and other problems in the body and along with the exact location.
The test particularly proves useful during pregnancy since it helps check fetal growth and development and helps doctors find out if everything is normal. If not, proper methods can be followed to eliminate the difficulties.
Ultrasounds work on a variety of organs and body parts, thus proving highly beneficial.
The following is a list of some of the most common uses of Ultrasound or Sonography test:
Ultrasound ( Sonography or Ultrasonography ) for Pelvic scans: These types of Ultrasound scans are used in case of women suffering from pelvic pain. It also proves useful in case of women who have fibroids, abnormal periods, cysts and other kinds of problems related to the reproductive system.
Ultrasound ( Sonography or Ultrasonography ) for Abdominal scans: These types of Ultrasound scans are used to diagnose vomiting, nausea, abnormal sounds, pain and lumps. In these scans, various organs and parts may be checked and they are gall bladder, liver, pancreas, bile ducts, kidneys, spleen and large blood vessels etc.
Ultrasound ( Sonography or Ultrasonography ) for Pregnancy scans: Various Ultrasound scans are done during pregnancy and these are done to check for fetal abnormalities, fetal growth and development, health condition and position and age as well.
Other uses of Ultrasound ( Sonography or Ultrasonography ): Some other uses of Ultrasound scans include breast scans, musculoskeletal scans, eye scans to check the respective condition of these parts. Doppler Ultrasound is a special kind of an Ultrasound test which helps detect speed and direction of blood flow in some parts of the body like the legs veins and arteries.
Ultrasound was first developed for industry?not for medicine! The first ultrasound machines measured flaws in metal castings in the 1940?s.
- The first time ultrasound was used in medicine was in 1942, when an Austrian neurologist named Karl Theo Dussick and his brother imaged the ventricles of the brain.
- Ultrasound waves are too high for humans to hear, but they are within the range of what dogs and cats can hear.
- One of the smallest ultrasound transducers is small enough to fit into a blood vessel.
- 3D ultrasound imaging can make live, moving images of a beating heart.
- Ultrasound can determine the sex of a fetus as early as 18-20 weeks.
- Veterinarians use diagnostic ultrasound for their animal patients.
- Ultrasound is not good at penetrating the bone. For this reason, it only has very limited use on the brain (because the cranium is in the way).
- Ultrasound is a favored method of diagnosis because it has almost no side effects and is inexpensive compared with more invasive methods.
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