Yes, 4D scanning is considered to be perfectly safe.
3D and 4D scanning uses the same ultrasound technology that hospitals use during normal diagnostic scans, the technology simply includes more advanced imaging software, which creates the 3D image.
This technology has been used for many years, and there is no current evidence of any biological risk to mother and foetus associated with obstetric ultrasound scans. (Obstetric ultrasound, biological effects and safety (no 160, June 2005) SOGC clinical practice guidelines from JOGC)
Despite this, we take the safety of you and your baby very seriously, and see no need to take any unnecessary risks. We have adopted the ALARA (As Low As Reasonably Possible) principle. This means that we have our equipment set to the lowest possible settings, whilst imposing a maximum amount of time we will expose your baby to the ultrasound. Therefore even our longest scans will not last for more than 20 minutes.
We also follow BMUS (British Medical Ultrasound Society) guidelines for the safe use of diagnostic ultrasound equipment, and we regularly update our procedures based on BMSU guidance.
For added peace-of-mind, we only use the most advanced, modern equipment available, which is regularly serviced.
If you have any doubts, please feel free to ask advice from your own doctor or midwife before visiting us.
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