Dont forget to download our free app for a day-by-day guide to your pregnancy. Service cost is higher 15 extra for multiple pregnancies. It’s used to see how far along in your pregnancy you are and check your baby’s development. Overweight children are thought to be at increased risk of a variety of health conditions, and they’re also more likely to be overweight as adults. It will usually take place at your local hospital ultrasound department. Or you can use it to check your child’s BMI.
New Zealand Obstetric Ultrasound Guidelines
It is important that you see a Midwife as early as possible in your pregnancy. Women have their first and longest Antenatal appointment between 6 – 12 weeks of pregnancy with their Midwife. This is called a “booking” visit and involves questions about your health, any illnesses or previous pregnancies. This helps us to see if there may be any possible problems during your pregnancy and allows us to tailor your Antenatal care for your specific needs. At the start of your pregnancy, during your booking visit, your Midwife will make an assessment based on your previous and current medical and pregnancy history.
All women will be offered ultrasound scans of their baby at around 12 and 20 weeks. Some women will need extra scans later in the pregnancy for several.
The New Zealand Obstetric Ultrasound Guidelines the Guideline have been developed by a working group of expert clinicians with support from the Ministry. There has also been consultation with the sector with feedback consolidated into the final document. The Ministry recognises the considerable work that has gone into the completion of these guidelines and is grateful to all the contributors for their expertise and time.
Skip to main content. Home Publications. New Zealand Obstetric Ultrasound Guidelines. Published online:. Read the Guideline View the Guideline online. Download in PDF format 3. Routine ultrasound should not be offered or requested to confirm an ongoing early pregnancy in the absence of any clinical concerns, symptoms or specific indications.
The purpose of this scan is to confirm viability and the number of fetuses, accurately establish gestational age, evaluate gross fetal anatomy and if requested, assess the NT as part of the risk assessment for aneuploidy. The second trimester anatomy scan is a routine screening examination, which should be offered to all women.
Blood pressure, height, weight, Body Mass Index (BMI) recorded. · Test urine Dating scan / first trimester screening scan and screening blood test. (at hospital).
Proper positioning, careful choice of probe, and leveraging of post-processing capabilities all can improve ultrasound quality in this patient population. This prevalent disorder increases both risk of infertility and complications during pregnancy, and has become a major clinical risk factor for adverse outcomes for both mother and fetus. Maternal obesity is also associated with increased risk of fetal structural anomalies, especially cardiac defects, neural tube defects, sacral agenesis, anal atresia, and limb reduction abnormalites.
Why obesity makes imaging challenging In addition to the risk of structural anomalies, technical challenges associated with sonographic imaging result in a significantly lower detection rate for cardiac anomalies, as well as an increased risk of missing markers of aneuploidy. Many factors contribute to suboptimal imaging in women with higher BMI. Sonographic visualization of fetal structures is degraded by depth of the body fat layer, with resultant increased depth of insonation, absorption of energy by the adipose tissue, and higher back-scatter from refraction.
Techniques to improve imaging Images obtained while scanning a patient with obesity are often of poor resolution secondary to backscatter, artifacts, and noise. Proper patient positioning The panniculus limits visualization due to absorption of ultrasound energy by the adipose tissue, as well as increasing depth of insonation. Because the basic tenet of good ultrasound technique is placement of the organ of interest as close as possible to the transducer, scanning at a point away from the thickest portion of the pannus between the umbilicus and pubic symphysis may improve image quality.
It is our intention to provide you with the best possible care and support before, during and after your pregnancy. We would like you to be fully informed on matters relating to your pregnancy and birth of your baby and fully involved when decisions are made about your care. The purpose of this section is to give some information on how and where your care will be provided.
booking of body mass index (BMI), and a late first trimester ultrasound dating scan using crown-rump-length measurement (gestational age.
Log in Sign up. Home Pregnancy Health Plus-size and pregnant. Chrissie Hammonds Midwife sonographer. The images may lack detail and look fuzzy. This is because of the way ultrasound scans work. A scan sends high-frequency soundwaves through your uterus womb.
Richmond Practice – Calculate your BMI (Body Mass Index)
This applies to all patients as well pensioners and health care card holders. Barwon Medical Imaging is committed to providing the very best in radiological services to its patients. Part of this commitment includes ongoing testing and servicing of all diagnostic radiographic equipment at all sites, and continual review of the protocols used and quality assurance testing.
In addition, the equipment manufacturers carry out regular scheduled servicing on behalf of Barwon Medical Imaging. We have also adopted the recommendation of the International Commission on Radiological Protection regarding minimizing exposure of patients to ionising radiation. Barwon Health complies with all the requirements of the Radiation Act which includes Compliance Testing of equipment, Management Licensing and individual User Licenses.
Why am I having an ultrasound scan? Ultrasound scans are very important during your pregnancy and can tell us a lot of information about your baby.
Also see Appendix 8 — Guidelines for the Midtrimester Obstetric Scan This scan is available for all patients as part of routine obstetric management. Cochrane evidence indicates a reduction in induction for post-dates pregnancy, increased rates of termination for fetal malformation and increased diagnosis of multiple pregnancy. There is no current evidence that perinatal mortality rates are reduced by this investigation.
It is not recommended as a screening test for aneuploidy. Diagnostic limitations of the examination need to be discussed with the patient. Technical limitations which may reduce diagnostic accuracy at the time of the examination should be recorded e. A morphology scan may also be performed as a second opinion for confirmation or further investigation of pathology. The Ultrasound Examination The ultrasound examination should include: Fetal number; Fetal heart activity; Fetal biometry including BPD, HC, AC and FL; Anatomical survey see Appendix 8 – Guidelines for the mid-trimester obstetric scan ; Fetal movement; Amniotic fluid assessment; Cervical length; Placental site, distance of lower margin from internal os; and Maternal anatomy including uterus and adnexal masses.
Ultrasound estimation of gestation should be used in preference to menstrual dates if the discrepancy is 10 days and there is no previous dating scan or known conception from artificial reproductive technologies. Acknowledgement should be made that the dates have been changed; Fetal anatomical survey should be reported and commented on with respect to detection of malformations and quality of assessment.
Examinations that are limited or suboptimal because of fetal position, maternal obesity or scars should be acknowledged. A judgment should be made as to whether a repeat examination would improve diagnostic accuracy; Fetal abnormalities should be reported to the referring doctor on the same day to expedite management choice for the pregnant woman. Interpretation of the clinical significance of these is controversial.
Unless this is required urgently, a letter will be sent to you in the post with the date and time of your scan. Please allow about an hour for this appointment, as after your scan a midwife will need to talk to you about other appointments you may require, blood test results and screening tests. Your anomaly scan also known as your 20 week scan. At your 1st trimester scan, an appointment will be made for your anomaly scan. During this scan, the sonographer will have a detailed look at your baby.
This is part of the fetal anomaly screening programme FASP. For more information about the anomaly screening programme click here. Please note this scan is not a sexing scan. Criteria for these scans varies but includes having a previously small for dates baby, being a smoker or having a BMI above
A dating scan is an ultrasound scan to determine how many weeks pregnant you are and your due date. Read on for more information about what a dating scan offers. A dating scan might be recommended before 12 weeks to confirm your due date if you are unsure of your last menstrual period or your date of conception.
baby to prevent this from happening, depending on your BMI, your general health, and how you gave birth. • Ultrasound scanning may be difficult and we may.
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