FacebookTwitterGoogle PusLinkedIn

Pelvic Ultrasound

Jorge Gomez - Tuesday, October 01, 2013

Things to Know about Pelvic Ultrasound and Pregnancy

A pelvic ultrasound can provide detailed information about your reproductive organs as well as a pregnancy. It may be used during fertility treatments as well. Being accurate, non-invasive, relatively low risk and cost-effective, it has become an indispensible tool in monitoring pregnancy, especially when high risk.

What is a pelvic ultrasound?

The primary use of pelvic ultrasound is during pregnancy. During this procedure high-frequency sound waves create images of the pelvic organs. The sound waves are projected into the pelvis, and measure how they reflect—or echo—back from the different tissues. It can also find fibroid tumors, ovarian growths, cysts, and problems with fallopian tubes. This test may be done in one of two ways.  

  • Transabdominal ultrasound. In this method a small handheld device called a transducer is passed back and forth over the lower belly to look for large uterine fibroids or other problems.
  • Transvaginal ultrasound. Here the transducer is shaped to fit into a woman's vagina. Some women may have both transabdominal and transvaginal ultrasounds to look at the whole pelvic area. A hysterosonogram (in rare cases) may also be done to look at the inside of the uterus. Sometimes, a small sample of tissue (biopsy) may be taken with small tools inserted through the vagina during a transvaginal ultrasound. 

When the ultrasound is complete, the technologist will make sure he or she has all the information the doctor will need. 

When might you be asked to do a pelvic ultrasound?

  • Early pregnancy: When you are around five to seven weeks, the ultrasound may be used to determine the size of the fetus to confirm the suspected due date, detect multiple fetuses, or confirm that the fetus is alive (viable).
  • Ectopic pregnancy: It is also particularly useful in distinguishing between intrauterine (within the uterus) and ectopic (outside the uterus) pregnancies.
  • Middle of the pregnancy: When you are about 16–20 weeks, the procedure can confirm fetal growth, reveal defects in the anatomy of the fetus, and check the placenta and amniotic fluid.
  • Toward the end of pregnancy: It may be used to evaluate fetal size, position, growth, or to check the placenta.
  • Prenatal genetic testing: Doctors may use ultrasound to guide the biopsy needle during amniocentesis and chorionic villus sampling. The imaging allows precise placement of the long needle that is inserted into the patient's uterus to collect cells from the placenta or amniotic fluid.
  • Early labor: It may also be used to check the cervical length in pregnant women who are at risk for preterm labor. 

Some other reasons you may be asked to do a pelvic ultrasound:

  • To find out what is causing pelvic pain
  • Determine the cause of vaginal bleeding
  • Look for pelvic inflammatory disease (PID)
  • Find an intrauterine device (IUD).
  • Look at the size and shape of the uterus and the thickness of the uterine lining (endometrium)
  • Determine the size and shape of the ovaries
  • Check the condition and size of the ovaries during infertility treatment
  • Check a lump found during a pelvic examination
  • Check uterine fibroids (as well as their growth) found during a pelvic examination
  • Guide a procedure to remove an ovarian follicle for in vitro fertilization

How to prepare for a pelvic ultrasound

This test is done by a doctor or by an ultrasound technologist (sonographer) in an ultrasound room in a hospital, clinic, or doctor's office.

  • Talk to your doctor about any concerns you may have (including risks) and what the results may signify.
  • Wear loose clothes. You may be asked to remove all your clothes below the waist and put on a gown.
  • You may need to sign a consent form if you are having a biopsy or a special procedure during the ultrasound.
  • A pelvic ultrasound takes about 30 minutes. You could be asked to wait until the doctor has looked at the pictures as he/she may want to take some more.

The ultrasound has emerged as the gold standard imaging modality for women in their first trimester with pregnancy-related complaints. Many emergency physicians use a pelvic ultrasound along with a pelvic examination for a clearer diagnosis.

For more information about pelvic ultrasounds and pregnancy and the specialized prenatal care required in high risk situations, please 
contact South Florida Perinatal Medicine. We have many locations to serve

Dr. Jorge L. Gomez earned his Medical Degree in 1990 at Central Del Caribe University in Bayamon, Puerto Rico. Following residency in Obstetrics and Gynecology at Bronx-Lebanon Hospital center in the Bronx, NY (1990–1994), he completed additional fellowship training at New York University Medical Center NY, specializing in Maternal Fetal Medicine (1994-1996). After his fellowship in 1996 he joined South Florida Perinatal Medicine. Dr. Gomez is Board certified in OBGYN and Maternal Fetal Medicine. From 2003–2007 He was a reviewer for the American Journal Of Obstetrics and Gynecology. 

Dr. Gomez has been published widely in peer review journals on many subjects, including multiple pregnancies, gestational diabetes, prenatal diagnosis, and high-risk pregnancies. His work has been recognized by ACOG (American Congress of Obstetricians and Gynecologists). Dr. Gomez specializes in prenatal diagnosis and testing. 


Latest Blog

Pre-term Labor Risks and Complications

Learn more about hospital based special care units that utilize a team ..

Tips for Prenatal Care during a High Risk Pregnancy

While you need good care during any pregnancy, a high risk one needs ex ..
View All

What our patients say

"I just wanted to say THANK YOU. I have read up on quite a bit of expecting moms experiences with their ultrasounds around the country and they were less then favorable, some horrible. But our (my husband and I) visit to your Baptist office was wonderful. The office is nice and decor is great. The tech was patient and educated. She answered all our questions, some before we even asked. She gave us her undivided attention and took her time. I am looking forward to my next appointment. Great service provided!" Ronnita W.,  Miami

View All
6200 Sunset Drive, Suite 301, South Miami, FL 33143, Office: (305) 669-9521, Emergency: (305) 669-9521, Fax: (305) 669-9735
11760 S.W. Bird Road, Suite 329, The Atrium Medical Building, Miami, FL 33175, Office: (786) 621-5300, Fax: (786) 621-5303
Mount Sinai Medical Center, Professional Medical Building, 4308 Alton Road, Suite 730, Tel: (305) 403-1234, Fax: (305) 403-0345
Ft. Lauderdale Office, 3107 Stirling Rd, Suite 106, Ft Lauderdale, Fl 33312, Tel: 305-859-7809, Fax: (305) 859-7790
North Shore Medical Ctr. 1190 NW 95 ST, Suite 204, Miami, FL 33150, Office: (305) 691-2180, Fax (305) 691-2182
Hialeah Hospital Medical Arts 777 East 25 ST, Suite 402, Hialeah, FL 33013, Tel: 305-835-7909, Fax: 305-835-9353