An ultrasound scan, also known as a
sonogram, is a method that obtains images of internal organs using
high-frequency sound waves and without the need for radiation. An ultrasound
scan can identify masses such as breast cancer, fibroid, kidney stones, causes
of uterine bleeding, or the sex and health condition of a fetus. There are different
types of ultrasound scans are external, internal, and endoscopic, depending on
the part of the body to examine. Placing the transducer on the skin and moving
it over the body part that is to be examined is the external ultrasound. A gel is
applied to the skin to facilitate smooth movement of the transducer and to
ensure that there is continuous contact between the transducer sensor and the
skin. The
common uses of an external ultrasound scan are the examination of the
developing fetus in the pregnant mother’s uterus, the reproductive organs,
heart, liver, gallbladder, and kidneys. Putting an ultrasound probe into the vagina
or rectum is the internal ultrasound; the process common known as the
trans-vaginal probe, which enables better visualization of the uterus even if
the bladder is empty.
While the trans-rectal ultrasound
enables more detailed examination of the prostate gland and can include
targeted biopsy of the prostate. There is usually no pain with internal
ultrasound, but you can feel discomfort during the ultrasound process. As
technology has advanced, new ultrasound methods have emerged, such as 3D and 4D
ultrasounds. Although 2D ultrasounds are typically sufficient to diagnose a
medical issue or to measure baby sex, development, and health, the new 3D
and 4D ultrasounds offer more visibility than regular 2D ultrasounds,
which only show a flat image on a screen. The abdominal ultrasound may be use to
investigate abdominal pain, nausea, vomiting, abnormal sounds and lumps. Structures
to be examined may include the gallbladder, bile ducts, liver, pancreas,
spleen, kidneys and large blood vessels. Structures that contain air cannot be examined
easily by ultrasound because air prevents the transfer of the sound waves.
A 3D ultrasound
takes thousands of pictures at once. 3D ultrasound makes a 3D image that is
almost as clear as a photograph. Some providers use this kind of ultrasound to
make sure your baby’s organs are growing and developing normally.
Ultrasound may use to check for
problems in the uterus. The
ultrasound technologist will place some gel onto your skin to provide better
contact between your body and the ultrasound probe. They will then place the
hand-held probe on your skin above the area of your body, organ or tissue that studied.
Ultrasounds are
often use when doctors suspect a problem and think that it is an area that the
ultrasound will be able to view. The determining the blood flow through the
heart, imaging breast tissue, internal organs, tissues and blood flow
throughout the body, and guiding biopsy needles can be examine by ultrasound.
Ultrasound is
safe for you and your baby when done by healthcare professionals like
obstetricians or a diagnostic medical sonographer. If your pregnancy is
healthy, ultrasound is good at ruling out problems, but not as good at finding
them. It may miss some birth defects. Sometimes false alarms can cause worry
for parents, a routine ultrasound may suggest that there is a birth defect when
there really is not one. Ultrasound and follow-up tests often show that the
baby is healthy.
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