who was blake lively dating before ryan reynolds - Dating scan nuchal translucency

This is a guide to ultrasound scans and their significance for early pregnancy.

Ultrasound scans send high frequency sound waves through the uterus to allow us to assess pregnancy and fetal wellbeing.

Softer tissues are varying shades of grey and fluid spaces such as the amniotic fluid around the baby will appear black.

This newsletter will explain all three early pregnancy scans including the Dating Scan, the First Trimester Screening and the Fetal Anatomy/Morphology Scan.

The purpose of the Dating Scan is: The dating scan is usually attended between 6 and 12 weeks gestation.

It usually starts as an ultrasound through the abdomen (called a transabdominal ultrasound).

You may need to have a full bladder for this part of the scan as it can help make the ultrasound images clearer.

Ultrasound gel is applied to the abdomen to help improve contact between the ultrasound probe and the skin.

The abdominal probe is gently moved around the abdomen to obtain ultrasound images.

Commonly in very early pregnancy, even clearer images of the pregnancy can be obtained using an ultrasound probe placed in the vagina (called a transvaginal ultrasound).

The transvaginal ultrasound examination doesn’t require a full bladder and uses a probe that is only approx. The probe is covered with a clean, protective disposable sheath before it is gently inserted into the vagina to obtain pictures of the pelvic organs and the developing pregnancy.

These images are often clearer as they are closer to all of the structures.

If the ultrasound scan date differs from your last menstrual period date, the scan will be used as the most accurate estimate of weeks pregnant and your due date.

Tags: , ,