Vectra 3D simulation—where should I get it? Will they explain the gap between prediction and reality?

If you're getting Vectra (3D imaging to predict post-surgical appearance), choose based not on image quality but on whether they explain the gap between prediction and reality. In breast augmentation, volume predictions tend to be accurate, but whether the result matches the prediction depends on the surgeon's experience.[1][2]What matters is how the tool is used, not the machine itself.

What can Vectra show?

Vectra shows a rough estimate of post-surgical shape. In a trial dividing 117 patients scheduled for breast surgery into three groups, confidence scores for imagining the final result were 5.2 with explanation alone, 8.0 with photos, and 8.9 with 3D[3].

In other words, 3D helps the surgeon and patient share an image of the final result. However, some reports found no clear correlation between whether 3D was used and post-surgical satisfaction[4].

How accurate are predictions? What are the limits?

Breast volume predictions are relatively accurate. In a study of 20 breast augmentation patients, volume prediction accuracy was 90.8%, and surface shape deviation was approximately 4 mm on average.[1].

In a study using a breast-shaped model, volume tended to read about 2.2% lower than actual[5]However, it has also been noted that the numbers vary depending on how the breast edge and chest wall shape are determined.[1].

What is different between the nose and breast?

The nose is a site where predictions tend to deviate more than the breast. In a nose study using different 3D software, there were differences between predicted and post-surgical measurements in nose tip height and angle.[2].

That study states that whether the result matches the prediction depends significantly on the surgeon's experience and technique.[2]Some reports put overall nose surgery prediction accuracy at an average of 86%, but it can be inaccurate depending on patient conditions[6]In revision surgery, care is needed because predicted images can create unrealistically high expectations.[2].

Where to get it: checklist when you are unsure

At your consultation, ask the following:

Explaining the gap: can they tell you which areas tend to differ between prediction and reality?[1][2]

Other tools: in breast augmentation, do they also use a sizer (trial filling)?[7]

Selection method: do they show you images of sizes or shapes that don't suit your body?[7]

Experience: have they achieved results close to predictions in this surgery?[2]

A study of 1,840 breast augmentations found that when using a sizer and Vectra with the patient participating in size selection, over 99% of people were satisfied with their decision.[7]Think of images as material for discussion with your surgeon—that makes them easier to use.

How accurate predictions will be in your case cannot be decided from an article alone. At your appointment, tell your surgeon about your current breast or nose shape and your desired outcome, and confirm with them which areas tend to have prediction gaps.