Ultrasound and ovulation scans
Sounds that are not audible to the human ear are called ultra sounds. An ultrasound scanner works in a very discreet fashion. When it is rolled atop the skin it moves the internal organs. Thus creating sound. This sound is then reflected on to a TV for better reference.
Why ultrasound?
Ultrasound gives clear images of the inside of a pregnant woman. At around 14 weeks an ultrasound tells if the foetus is living, if there are twins or triplets. Knowing the length of a foetus can determine when the baby is due and a search for any abnormalities can all be done through ultrasound. At 18 weeks, an ultrasound tells us the developments of the scull, hands, legs and the rest of the body. But images tend to be unclear if the mother is overweight. Most importantly ultrasound helps examine the passage of blood, oxygen and other nutrition in the umbilical cord. An internal ultrasound can also be performed to examine the foodpipe, stomach etc.
Your preparation for the scan
Depending on the organ that has to be scanned the preparation differs. Sometimes you would be asked to come on an empty stomach or with a full bladder. A full bladder pushes the womb, so that it is more clearly visible. The same would be requested for a bladder scan.
Rectal/Vaginal Ultrasound
Sometimes a small microphone is inserted in the rectum as it gives a clear view of the vagina. Empty bowels would be preferred before you come in for this test. Similarly a small microphone is inserted into the vagina for a clear view of the embryo and ovaries.
Is
ultrasound safe?
Scientists have recently discovered that ultrasound waves can cause damage
to the brain. But this is not yet proved. Hence ultrasound scans are widely
used by doctors to check the health of the child. Yet this scan cannot
guarantee a foolproof examination.
Ovulation Scans
The maturity of an egg and the time of ovulation are deciphered by an ovulation scan. This information is important, as it is the criteria to begin the patient’s medication. Also the follicle of the pregnant woman is visible. And if the egg is ruptured the scan blatantly shows.
Even the walls of the uterus are visible through the scans. Pregnancy stimulates the volume of estrogen, which causes the walls of the uterus to thicken. The scan allows understanding the levels of estrogen produced and following it the quality of the egg.