How to use Ultrasound in a sentence
They should be doing an ultrasound in a couple of weeks.
Long before the ultrasound, she was certain that her problem was pregnancy.
She thought when she asked him if he wanted to go with her for the twelve week ultrasound that he would say no, but he didn't.
Finally the day arrived and she went in for the ultrasound.
Between 10 and 14 weeks of pregnancy, physicians may use an ultrasound to look for a thickness at the nuchal translucency, a pocket of fluid in back of the embryo's neck, which may indicate a cardiac defect in 55 percent of cases.Advertisement
I've been to the doctor and they even did an ultrasound.
Carmen waited in impatient silence for an agonizing week for the ultrasound.
Using ultrasound to guide the way, a needle is inserted through the mother's abdomen into the developing placenta.
Processing - at high powers ultrasound causes intense agitation to particles.
Ultrasound can seal ruptured blood vessels deep within the body without the need for risky surgery.Advertisement
Another avenue of nanotechnology research is to develop nanometre-sized contrast agents with ultrasound to diagnose ovarian cancer.
At least once a fortnight, researchers will assess each woman's cervix using ultrasound scans.
In later pregnancy ultrasound assessment of the fetal abdominal circumference is the most sensitive predictor of fetal weight.
I taught self care, showed patients how to reduce contractures through exercise, and did ultrasound and splinting.
Treatment is usually either by percutaneous drainage under ultrasound or CT guidance, or by formal operative drainage.Advertisement
Ultrasound scans were used to assess thrombosis before and after the flights and a composite edema score was used to evaluate edema and swelling.
Ultrasound scans were used to assess thrombosis before and after the flights and a composite edema score was used to evaluate edema score was used to evaluate edema and swelling.
Similarly, a wide range of outcome measures is used, including neonatal encephalopathy, cranial ultrasound findings, seizures and cerebral palsy.
Treatment was monitored by serial ultrasound scans and assessment of serum estradiol.
Some cysts are commonly seen in the liver on ultrasound examination.Advertisement
The area is then exfoliated and deep cleansed using an ultrasound spatula that glides over the skin.
The eggs grow within small fluid filled structures called follicles, the size of which can be measured by ultrasound scan.
You can also opt for regular ultrasound scans and fetal heart monitoring if you do not want an induction.
From 1984 to 2000 he combined research work in ultrasound imaging with hospital service work in diagnostic radiology.
Kim et al additionally utilized endoscopic ultrasound to evaluate the deep margins of 4 colonic lipomas.Advertisement
This small device (shown on the right) emits bursts of ultrasound when the integral movement sensor detects something moving.
The only sure way to diagnose a blighted ovum is through an ultrasound.
Ultrasound demonstrated bilateral occlusion with a sensitivity of 100 %, and showed tubal patency with a specificity of 96% .
By scanning a photodiode along a line across the beam reflected by the interferometer, a line array of ultrasound receivers is effectively synthesized.
Ultrasound waves are sent out and received by a small hand-held probe.
The surgeon then checks the position of the needles with the ultrasound probe.
Brachytherapy using transrectal ultrasound guidance for seed implantation is promising in terms of freedom from biochemical failure in selected patients with early-stage prostate cancer.
At the tail end with long gloves on is the ultrasound scanner with his assistant.
The topics covered relate to both first and second trimester screening using biochemical and ultrasound markers.
Ultrasound Ultrasound scans are a way of producing pictures of inside the body using sound waves.
Endoscopic ultrasound appeared to be reliable for both local tumor and lymph node staging of oesophageal cancer.
Secondly, by mapping the output of a focussed ultrasound transducer at various distances from the focus.
Information regarding any anomalies detected by ultrasound should also be provided.
Transvaginal ultrasound scan Your doctor may suggest an ultrasound scan.
In another study of 15 patients endoscopic ultrasound showed better accuracy than CT scanning for staging the disease.
Transrectal ultrasound - this is used to examine the prostate gland in men.
It claims to promote bonding despite the fact that no one has produced any such findings from research on 4D ultrasound scanning.
More recently hand-held doppler ultrasound has become available to supplement the clinical evaluation.
With recent technological advances, duplex ultrasound has been increasingly used in vascular assessments.
The test began with a high-resolution ultrasound of each woman to detect early signs of plaque build up in the carotid arteries.
My doctor has recommended that I go for a breast ultrasound scan.
Some cells die when this high intensity ultrasound beam is focused directly onto them.
Further investigations, such as blood tests, bone scan X-ray or pelvic ultrasound may be indicated.
The candidate will perform and interpret general radiography studies, special procedures, ultrasound and scintigraphy studies.
I have special interests in musculoskeletal ultrasound and seronegative spondyloarthropathy.
In a controlled trial, patients with tendinitis of the shoulder received 24 treatments over six weeks of either ultrasound or a sham treatment.
My work focuses on finding improved methods of imaging arteries using three-dimensional ultrasound.
Only 8.7% of controls had ultrasound in the first trimester compared with 15.7% of cases.
Ultrasound scans A ultrasound scan of the pelvis may be requested and an appointment is usually arranged at later date in the radiology dept.
Obstetric ultrasound - all routine obstetric ultrasounds are performed using state-of-the-art ultrasound machines.
The waiting time for routine ultrasound scans was reduced by 50% from 12 months to 6 months.
Methods based on the Doppler effect are commonly used to study blood flow, often in conjunction with ultrasound imaging.
Ultrasound An ultrasound scanner uses sound waves to produce images of soft tissue on a screen.
You usually have the ultrasound probe put inside your vagina.
The ultrasound examinations were reported blind to the CT results.
I thought that the test most likely to be helpful was an ultrasound of the abdomen which I had already arranged.
Further investigations, such as blood tests, bone scan x-ray or pelvic ultrasound may be indicated.
Fraternal twins are easy to identify on an ultrasound as they always have their own placentas.
It is, however, quite different as a result of ultrasound technology.
It relies on the benefits of ultrasound technology built into the brush, paired with specially formulated Emmi-dent "nano-bubble" toothpaste, to whiten teeth.
Emmi-dent works by using ultrasound to kill the bacteria that cause food and drink-related stains on teeth, as well as nicotine stains and other sources of tooth discoloration.
Rather than having to make a traditional brushing motion while using the device, the combination of ultrasound technology and Emmi-dent's nano-bubble toothpaste does all of the work.
The ultrasound signal continually implodes the toothpaste's nonabrasive bubbles while also creating new ones while you're using it.
A veterinarian may run a routine battery of tests to diagnose cardiomyopathy, and these can include an EKG, an x-ray or ultrasound images to examine the shape and condition of your cat's heart.
They also used ultrasound imaging to look at the rate at which food passed from the stomach.
Some of the albums also incorporate classic "baby book" sections for documenting weight, growth, foot prints and ultrasound prints.
Do I need to have an ultrasound done or should I just have them palpate her?
I was also wondering when you can hear the babies' heartbeats, and when to get an ultrasound.
It also isn't necessary to do an ultrasound unless your vet recommends one closer to delivery to count the pups and gage what kind of position they are in.
After this, you vet can perform an ultrasound to detect any puppies.
However, I'd recommend taking her in to have an ultrasound performed in a few more weeks.
He/She can check on the pups by ultrasound and hopefully set your mind at rest.
An ultrasound would allow your vet to see any developing embryos.
Take your bitch to the vet and ask for an ultrasound.
Echo is often combined with Doppler ultrasound and color Doppler.
During the echo, an ultrasound transducer (hand-held wand placed on the skin of the chest) emits high-frequency sound waves to produce pictures of the heart's valves and chambers.
In rare cases or when carotid artery disease is suspected, additional tests may include a carotid ultrasound or cerebral or carotid angiogram.
Other tests to diagnose stroke may include a transcranial Doppler ultrasound and neurosonogram.
In a transcranial Doppler ultrasound, sound waves are used to measure blood flow in the vessels of the brain.
An echocardiogram, or echo (cardiac ultrasound) may be used to distinguish an innocent murmur from a pathologic one.
An echo uses ultrasound, or high-frequency sound waves, to create an image of the heart's internal structures.
An immediate evaluation that includes blood tests and imaging of the biliary system (through ultrasound, specialized x-ray techniques, or radioactive screens of the liver) are required to confirm the diagnosis.
Radiologists read the x rays, ultrasound images, CT scans, and MRI images to help diagnose cancer.
An ultrasound examination should be done to determine that the baby's head is not too large and that it is tilted forward (flexed) rather than back (hyperextended).
The FHR is picked up by means of an ultrasound transducer and the movement of the heart valves.
Internal monitoring does not use ultrasound, is more accurate than electronic monitoring, and provides continuous monitoring for the high-risk mother.
Ultrasound pictures of intrauterine life have even shown fetuses sucking their thumbs.
A combination of high-frequency ultrasound and color Doppler studies has also been shown to have a high degree of accuracy in distinguishing between melanomas and benign moles.
Similarly, there is no reliable prenatal test, although some physicians have used ultrasound to try to determine the length of fetal limbs in at-risk pregnancies.
If multiple gestation is suspected, an ultrasound may be performed to determine the gestational age of the fetus or to check for more than one fetus.
With the use of assisted reproductive technology, an ultrasound is usually performed with ten days to see if any of the embryos were successful with implantation, and a multiple gestation would be revealed at that time.
Ultrasound examinations play an important role in the care and treatment of multiple gestations.
Ultrasound, computed tomography scans (CT scans) and magnetic resonance imaging (MRI scans) are helpful in diagnosing Wilms' tumor.
Ultrasound scan accompanied by a contrast agent can also be used to diagnose testicular torsion.
Ultrasound tests, magnetic resonance imaging (MRI) tests, or computed tomography (CT) scans may be ordered if the doctor cannot readily determine the cause of a fever.
In some cases the doctor may order an ultrasound study of the pelvic region to check for anatomical abnormalities or x rays or a bone scan to check for bone fractures.
Ultrasound examinations may reveal the absence of a limb in some developing fetuses, but routine ultrasounds may not pick up signs of more subtle defects.
However, if a doctor suspects that the fetus is at risk for developing a limb deficiency (for example, if the mother has been exposed to radiation), a more detailed ultrasound examination may be performed.
Ultrasound can locate a uterus behind the bladder and can determine if there is a cervix or uterine canal.
Imaging techniques such as ultrasound, computed tomography (CT scan), and magnetic resonance imaging (MRI) may be performed.
An echocardiogram uses ultrasound, or high-frequency sound waves, to display an image of the heart's internal structures.
Thus, the diagnosis may be determined during history taking or if it is the fetus, during the morphological ultrasound at 16-19 weeks gestation.
Other common imaging techniques such as magnetic resonance imaging (MRI) and ultrasound do not use x rays.
A physical therapist can offer ultrasound treatment, which raises skin temperature to ease pain, or biofeedback, a technique in which the patient learns how to tense and relax muscles to relieve pain.
An echocardiogram (echo) uses ultrasound, or high-frequency sound waves, to display an image of the heart's internal structures.
The most accurate way to determine breech position is using ultrasound.
This should only be attempted if ultrasound shows that the fetus is in a favorable breech position.
A version should only be done in a hospital, with an ultrasound machine used to guide the obstetrician in turning the fetus.
Imaging of the brain using ultrasound, x rays, MRI, and/or CT scans may reveal a structural anomaly.
Prenatal diagnosis may be made in most cases with ultrasound examination after 12 to 14 weeks of pregnancy.
Further examination with CT and/or MRI scans, ultrasound, and Wood's lamps to view the eyes will reveal the presence of the characteristic tumors of tuberous sclerosis.
Using ultrasound as a guide, the surgeon feels for the affected fetal part.
Hypoplastic left heart syndrome is treated by passing a needle, guided by ultrasound, through the mother's abdominal wall, into the uterus and the fetal heart.
Guided by ultrasound a needle is inserted through the mother's abdomen and uterus and into the tumor.
Following detailed ultrasound, a thin fetoscope is inserted through the mother's abdominal and uterine walls and into the amniotic cavity of the recipient twin to examine the surface placental vessels.
She will see a perinatologist once a week and have at least one ultrasound per week.
Under ultrasound guidance a needle is inserted either through the mother's vagina or abdominal wall and a sample of the chorionic membrane.
Echocardiography-A non-invasive technique, using ultrasound waves, used to look at the various structures and functions of the heart.
Vascular ultrasound is a non-invasive ultrasound method used to examine blood circulation and detect the presence of blood clots.
During a vascular ultrasound, an ultrasound transducer (small hand-held device) is placed over the area being examined.
Ultrasound imaging may also be used to evaluate these conditions.
Kidney size and scarring can be assessed through ultrasound examination of the kidneys.
Doppler ultrasound techniques were as of 2004 under study as a radiation exposure-free alternative to VCUG.
The kidneys are evaluated regularly via ultrasound and VCUG (every 12 to 18 months) to make sure that they are growing normally and that no new scarring has occurred.
An ultrasound evaluation is used to confirm the presence of the tumor and to evaluate its size.
If desired, prenatal detection of tumors using ultrasound may also be performed.
During the ultrasound procedure, a hand-held instrument is placed on the maternal abdomen or inserted vaginally.
The ultrasound produces sound waves that are reflected back from the body structures of the fetus, producing a picture that can be seen on a video screen.
Ultrasound is used to evaluate the growth of the baby and the ratio of the head circumference (HC) to the abdominal circumference (AC) is a good predictor of asymmetric IUGR.
Before birth, an ultrasound examination may detect the problem.
Patau syndrome is detectable during pregnancy through the use of ultrasound imaging, amniocentesis, and chorionic villus sampling (CVS).
External monitoring of the fetus is accomplished by means of a transducer that emits continuous sound waves (ultrasound).
Tsuchiya, M., et al. "Ultrasound screening for renal and urinary tract anomalies in healthy infants."
Because of the relatively small risk (2-4%) of recurrence of OI type II in a family, families may opt for ultrasound studies to determine if a developing fetus has the disorder.
Ultrasound is the least invasive procedure for prenatal diagnosis and carries the least risk.
Using ultrasound, a doctor can examine the fetus's skeleton for bowing of the leg or arm bones, fractures, shortening, or other bone abnormalities that may indicate OI.
Different forms of OI may be detected by ultrasound in the second trimester.
Abdominal ultrasound is able to effectively visualize and diagnose most obstructions.
The physician uses ultrasound images to guide needle placement and collect the sample, thereby minimizing the risk of fetal injury and the need for repeated needle insertions.
An ultrasound may reveal small or undeveloped female reproductive organs while a gynecologic examination may reveal a dry vaginal lining.
A kidney ultrasound can be used to evaluate abnormalities of the kidneys.
After diagnosis, echocardiogram (heart ultrasound) and an MRI of the chest are performed to evaluate possible cardiac defects.
Ultrasound has been noted as a safe and effective tool for the diagnosis of congenital hip dysplasia.
Ultrasound has advantages over x rays, as several positions are noted during the ultrasound procedure.
Bone x rays can reveal bone age, and pelvic ultrasound may show an enlarged uterus and rule out ovarian or adrenal tumors.
Infants who are at high risk for IVH usually have an ultrasound taken of their brain in the first week after birth, followed by others if bleeding is detected.
The most accurate way of determining the gestational age of an infant in utero is calculating from a known date of conception or using ultrasound imaging to observe development.
X-ray or ultrasound imaging may be used to examine the heart, lungs, and other internal organs.
Thus the infected cells must be collected and broken open by ultrasound.
The released virus is extremely sensitive to heat caused by ultrasound, and Merck scientists had to determine the precise conditions for opening the cells and releasing the virus unharmed.
The company built a new production facility for Varivax that uses robots to strictly control the ultrasound procedure.
Therefore, it is recommended that older infants and children with Edwards' syndrome have a routine ultrasound of the abdominal cavity.
Women and children with recurrent UTIs can be given ultrasound exams of the kidneys and bladder together with a voiding cystourethrogram to test for structural abnormalities.
Ileus can be confirmed by x rays of the abdomen, computed tomography scans (CT scans), or ultrasound.
In addition, an ultrasound version of the Greulich-Pyle Atlas has proven to be as effective as wrist x rays.
Prenatal diagnosis of neural tube defects causing anencephaly or meningomyelocele is possible through ultrasound examination and maternal blood testing for alpha-fetoprotein, which is almost always elevated.
Ultrasound can also be used to diagnose Dandy-Walker and Chiari II malformations.
This is why doctors periodically perform ultrasound brain scans of anyone on ECMO.
Type II Chiari malformation may be diagnosed prenatally by ultrasound or shortly after birth during medical evaluation of the accompanying spina bifida.
Ultrasonography (ultrasound) is also routinely used to evaluate the fetus before birth and in the period shortly after birth.
Techniques such as biofeedback, cognitive-behavioral pain management, hypnosis, acupuncture, ultrasound, and physical therapy have all been used to treat post-amputation and phantom pain.
The MBPP is performed in the same manner as the NST with a limited ultrasound (US) performed to assess the amount of amniotic fluid, which is reported as the amniotic fluid index (AFI).
The biophysical profile (BPP) is performed by an ultrasound exam over a 30-minute period.
Fetal echocardiography is a specialized ultrasound of a baby's heart.
Ultrasound waves utilized in detecting the FHR and for the BPP are painless and safe because this method employs no harmful radiation.
Although some types of clefts can be detected during pregnancy by an ultrasound test, many are not discovered until birth.
An echocardiogram (ECG) may be performed to evaluate heart function and ultrasound of the kidneys performed to evaluate kidney function.
The purpose of the test is to determine if further testing (such as ultrasound or amniocentesis) is warranted.
Ultrasound is a device that records sound waves as they bounce off the developing fetus and create an image that is projected onto a large computer screen.
A physician may order an ultrasound scan to listen for a fetal heartbeat, determine a woman's precise due date, or check for twins, among other uses.
During the procedure, an ultrasound technician asks the pregnant woman to remove her clothes and change into a gown.
Pregnant women will often have their first ultrasound between eight and 12 weeks of gestation.
Using ultrasound as a guide, the doctor uses the needle to withdraw a sample of fluid from the amniotic sac.
Imaging tests can include abdominal x rays, ultrasound, and computed tomography (CT).
Diagnosis of DiGeorge syndrome can be made by ultrasound examination around the eighteenth week of pregnancy, when abnormalities in the development of the heart or the palate can be detected.
Fetal assessment includes percutaneous umbilical cord blood sampling (PUBS) (cordocentesis), amniocentesis, amniotic fluid analysis, and ultrasound.
Ultrasound should be done as early as possible in the first trimester to determine gestational age.
Complications are indicated by high levels of bilirubin in the amniotic fluid or baby's blood or if the ultrasound reveals hydrops fetalis.
This procedure involves sliding a very fine needle through the mother's abdomen and, guided by ultrasound, into a vein in the umbilical cord to inject red blood cells directly into the baby's bloodstream.
A specialized ultrasound exam measures the thickness of the back of the fetus's neck (called nuchal lucency).
They are faced with the fact that there is no baby to bury, and many times, no physical evidence that their child had lived, except for maybe an ultrasound picture.
Carry around a picture of your ultrasound and pull it out as a reminder of what is at stake.
If your health care provider suspects an ectopic pregnnacy, or a pregnancy that isn't developing correctly, they will suggest doing comparison hCG levels and an ultrasound.
Your OB provider will examine you with a pelvic exam, further hCG level tests, and an ultrasound to confirm a viable pregnancy or an ectopic pregnancy.
An ultrasound will reveal that the uterus is empty and help the doctor discover the location of the pregnancy in the fallopian tube.
The ultrasound may need to be done by inserting the ultrasound probe into the vagina, because that gives the best view of the uterus and fallopian tubes.
Your baby will develop lanugo (fine body hair) and it will darken enough to be seen on an ultrasound.
When the baby was two weeks overdue, we did an ultrasound, my first ever.
If it is positive, you may need additional tests, such as ultrasound or amniocentesis, to find out if anything is really wrong.
You won't be able to hear your baby's heart beat, but if you have an ultrasound you can see it beating.
Others choose to bury baby blankets, toys, ultrasound photos, or small mementos in a private family ceremony.
One of these panels is actually an ultrasound device that sends and receives sound waves to detect fetal heart rate.
When you get your ultrasound, the technician will look for placenta placement.
In this scenario, it's no different than wanting to see your best friend's ultrasound photos or pictures of your sister in her newest maternity outfits.
An ultrasound photo gallery has thousands of pictures from ultrasounds, of singleton and multiple pregnancies.
If your doctor doesn't have an ultrasound scheduled and you want to know your baby's gender, you may want to visit a Fetal Fotos location to receive a 3-D ultrasound and keepsake video or photograph of your unborn baby.
If you have questions about whether or not a keepsake ultrasound is right for you, contact your healthcare provider for additional information.
An ultrasound may be done to check for implantation in the uterus.
He is a consultant and associate professor of obstetrics and gynecology, and his specialty areas include office gynecology, high-risk obstetrics and obstetrical ultrasound.
This way, even if you don't learn your EDD until your first early ultrasound, you're still helping to ensure the healthiest possible pregnancy.
If you are curious about gender of your baby during pregnancy, you may be able to take a guess before the ultrasound.
During an ultrasound, the position of the baby sometimes leads the technician to misinterpret gender.
Now, ultrasound images and blood tests give a more accurate look at when a baby was probably conceived.
Conditions like cleft palate can be identified during pregnancy through and ultrasound.
During an amnio, the pregnant mother lays on an exam table while an ultrasound is performed to determine the baby's location.
Due to some possible amniocentesis risks, this procedure is usually only performed if the pregnancy is considered high-risk or if there were any abnormalities found on an earlier ultrasound.
Heart defects, growth problems, or other concerns may be visually discovered on an ultrasound.
When performed by a skilled physician and with careful ultrasound guidance, amniocentesis is usually a safe procedure.
This may include organ or limb problems that were identified on an ultrasound or blood tests that show a potential problem.
The doctor will use an ultrasound to check the position of the baby during the test and to ensure that the needle is placed accurately.
The doctor will perform an ultrasound to locate where the baby is lying in the mother's belly.
He will continue to use the ultrasound to keep track of the baby while inserting a very thin, long needle into your abdomen.
Waiting a few more weeks for an ultrasound is a better alternative.
An ultrasound technician can offer a prediction with 80 to 90 percent accuracy, rather than 50 percent.
The wait for an ultrasound can be difficult but holding out for a few weeks is the best approach.
Your doctor can detect the heartbeat with an ultrasound.
Two tests are done during the screening--a blood test and an ultrasound.
Your doctor will send you into a specially trained technician to do a vaginal ultrasound.
The vaginal ultrasound is a painless procedure during which you will lay on your back while the technician inserts a slender wand-like device into your vagina.
Women are generally offered a first ultrasound during the first trimester of pregnancy.
The device may not come out as easily as expected and your doctor may have to use an ultrasound to determine the reason that it isn't moving.
The steps to diagnosis include a positive pregnancy test along with an ultrasound.
Ultrasound scanning tracks the number and size of developing follicles.
After an ultrasound shows that a good number of follicles are present, the woman has a final injection to help the eggs mature.
Using a hollow instrument that is guided by an ultrasound, the physician collects the eggs and places them into nutrient-rich culture with sperm collected from the male.
The doctor conducts an ultrasound about two weeks after the confirmed pregnancy to ensure that the embryo is developing normally.
Occasionally, the doctor may use an ultrasound or MRI to look for nodules or implants in the abdomen to supplement the diagnosis.
A physician can diagnose a tubal pregnancy using ultrasound, blood tests, and a pelvic exam.
Some practitioners will do an ultrasound to check on the baby, but if a miscarriage is going to occur, there is nothing that you or your doctor can do to stop it.
Ultrasound can determine the visibility of abnormal fat on the liver.
Salt macrodermabrasion, a more effective, aluminum-free alternative to microdermabrasion, polishes your skin with natural salt crystals, followed by antioxidant ultrasound treatment.
Chiropractors often work with ointments and gels used with ultrasound equipment.
Progress in ultrasound scanning means we can now see the true humanity of the unborn child.
The decision to have prenatal surgery is made on the basis of detailed ultrasound imaging of the fetus, including an echocardiogram that uses ultrasound to obtain images of the fetal heart, as well as other diagnostic tools.
When OI occurs as a new dominant mutation and is found inadvertently on ultrasound, it may be difficult to confirm the diagnosis until after delivery since other genetic conditions can cause bowing and/or fractures prenatally.
There are no complications per se from the tests themselves with the exception of unfavorable test results or supine (lying horizontality on the back) hypotension secondary to a pregnant woman lying on her back for an ultrasound.
You'll have a second ultrasound to check the baby's development (and gender if you're interested), and some women have amniocentesis performed if there is any reason to believe that something may be amiss with the developing fetus.
Such monitoring may include frequent visits with the primary caregiver, tests to monitor the medical problem, blood tests to check the levels of medication, amniocentesis, serial ultrasound examination, and fetal monitoring.
Although an invasive one, the procedure is relatively straightforward and is performed with the aid of abdominal ultrasound technology to enable the physician to see the exact location of the needle as it passes through the abdomen.