4D Peripheral Ultrasonography

4D ultrasound is similar to a 3D ultrasound except that the image it generates is continuously updated, much like a moving image. This type of ultrasound is most often done for entertainment and not for medical reasons.

3D and 4D ultrasounds are just as safe as 2D scans since there is no form of radiation. While not considered a true risk, the rise in temperature caused by the sound waves that are used to create an image of the baby concern some parents.

4D peripheral Ultrasonography

We present a standardized method for using four-dimensional ultrasound (4D US) guidance for peripheral nerve blocks. 4D US allows for needle tracking in multiple planes simultaneously and accurate measurement of the local anesthetic volume surrounding the nerve following injection. Additionally, the morphology and proximity of local anesthetic spread around the target nerve are clearly seen with the described technique. This method provides additional spatial information in real-time compared to standard two-dimensional ultrasound.
Expectant mothers that are full-figured should consider scheduling their 3D/4D ultrasound between 28 and 32 weeks of pregnancy. If you are expecting twins or multiples, the best time for 3D/4D ultrasound is between 22-27 weeks.

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