Ultrasound Analysis
NB Plastic Surgery

Ultrasound Analysis

Ultrasound-Based Analysis

Before surgery, ultrasound is used to check the thickness and boundary of the fat layer and the position, boundary and depth of muscle. Blood vessels are checked with Doppler when needed, and the findings inform the plan.

Ultrasound Method

The Core of Ultrasound Analysis

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Fat-Layer Depth Measurement

Ultrasound is used to check the thickness and boundary of the fat layer in each area.

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Muscle position, boundary and depth

Ultrasound is used to check the position, boundary and depth of the muscles around the surgical area.

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Vessel check, when needed

Where clinically needed, Doppler is used to check the position of major blood vessels, and this informs the surgical plan.

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Customized Design

Based on the analysis, we build an individualized treatment plan for each person.

ULTRASOUND IN CONSULTATION

What ultrasound shows in consultation — and what it cannot settle

As a rule, the ultrasound scan is part of the pre-operative assessment for body procedures and is carried out in the ultrasound examination room during the course of care; it may be omitted depending on the patient's condition and the clinical situation. We check the thickness of the skin and subcutaneous fat, the boundary between layers and how fat is distributed, and the imaging findings are read together with the clinical examination.

Ultrasound helps check skin and subcutaneous fat thickness, the boundary between layers, and fat distribution. It is not a device that definitively diagnoses every adhesion or predicts the result in advance. Measurements can vary with examination conditions, so they are read together with the clinical examination.

  • Skin and subcutaneous fat thickness — how thick the layer is at the site being examined.
  • The boundary between layers — where the fat layer separates from the structures beneath it.
  • Fat distribution — how thickness varies within one area.
  • Muscle position, boundary and depth — ultrasound is used to check the position, boundary and depth of the muscles around the surgical area.
LIMITS

What ultrasound does not decide

Ultrasound does not settle the answer on its own. None of the four below is determined by ultrasound alone; each is judged together with the clinical examination.

  • It does not fix the outcome in advance — a measurement describes the present state, not how the result will look after surgery.
  • Measurements can vary with examination conditions — probe pressure, the exact site measured and the examiner all change the value.
  • Clinically agreed cut-off values do not yet exist — there is no established general rule that a thickness above some number of millimetres means surgery is indicated.
  • It does not accurately replace whole-body fat percentage — whole-body estimates derived from site thicknesses are less accurate, particularly in overweight and obese people.

This page provides general medical information. It is not an individual diagnosis or a recommendation of treatment. Whether and how any method applies is decided after your current condition is examined in consultation.

REFERENCES

References

The studies below support the explanations on this page. All are research from other institutions and are not treatment outcomes of NB Plastic Surgery Clinic.

  1. Neagu M, Neagu A. A Decade of Progress in Ultrasound Assessments of Subcutaneous and Total Body Fat: A Scoping Review. Life (Basel), 2025;15(2):236.

    Supports · A paper describing the general evidence for, and the limits of, measuring subcutaneous fat thickness with ultrasound. What NB actually assesses follows the clinical scope set out on this page.

  2. Azzi AJ, Lafrenière AS, Gilardino M, Hemmerling T. Ultrasonography Technique in Abdominal Subcutaneous Adipose Tissue Measurement: A Systematic Review. Journal of Ultrasound in Medicine, 2019.

    Supports · Supports the limit that measurements vary with probe pressure, measurement site and examiner, and that a standardised measurement protocol is needed.

WHERE IT SITS

Where in the consultation does ultrasound happen?

Ultrasound is not the start of a consultation — it sits in the middle. What you want is heard first, current numbers are recorded, and imaging findings are laid on top of that. The order matters: measurements alone cannot tell anyone what you are hoping for.

  1. Intake

    The change you want, written down first

    You record the areas you care about and the change you want, along with previous procedures and surgery, current medication, existing conditions and allergies.

  2. Change of clothes

    So nothing hides the line

    Elastic marks and shaping underwear change how a line reads. You change into an examination gown before anything is assessed.

  3. Coordinator review

    Areas and timing, organised

    A consultation coordinator first organises which areas matter to you, what dates are possible, and how much recovery time you can actually give. That summary is where the surgeon consultation starts.

  4. Body composition

    Your current numbers, on record

    Weight, body fat and muscle mass are measured and recorded. These are whole-body estimates and do not replace region-by-region fat thickness.

  5. Surgeon ultrasound

    Performed in the ultrasound room

    The ultrasound examination is performed in the ultrasound room as part of the consultation. It checks skin and subcutaneous fat thickness, the boundary between layers, how fat is distributed, and the position, border and depth of muscle around the treatment area. Blood vessels are checked with Doppler when needed.

  6. Mirror consultation

    Reading the measurements together

    Measurements and imaging findings are reviewed in front of a mirror — not only from the front, but at an oblique 45 degrees and from the side and back. That is where the scope is set: what is reduced, and what is deliberately left.

  7. Cost and booking

    After the scope, not before

    Cost and scheduling are explained once the design scope is settled. Nothing has to be decided in that sitting.

This is how NB runs a visit. Individual steps may be adjusted depending on your condition and the circumstances of the visit.

WHAT SHOWS WHAT

What can each method actually tell you?

The methods used in a consultation do not substitute for one another. Each answers a different question.

MethodWhat it can showWhat it cannot settle on its own
UltrasoundSkin and subcutaneous fat thickness at the chosen site, the boundary between layers, how thickness varies within one area, and the position, border and depth of muscle around the treatment areaHow you will look after surgery, an exact whole-body fat percentage, or an agreed cut-off such as "over X mm means surgery"
Doppler (when needed)The position of major vessels. Doppler adds information about the speed and direction of blood flow.Fat volume, or any prediction of the result
Body composition (BIA)Whole-body estimates of weight, body fat and muscle mass, and how they move between visitsFat thickness in a specific area, or which layer it sits in
Examination and mirror view (oblique 45°)Left-right differences, lines that come from posture and skeleton, where skin folds, how the line behaves in movementThe thickness of the layers under the skin

All four are used in an NB consultation. None substitutes for another, so no single value stands in for what the other methods answer. Items with numeric criteria — waist circumference and abdominal obesity, for instance — are covered with their sources in the abdomen, waist and hip article.

NEXT STEP

You can ask first, and decide later

Ultrasound findings and a design scope only exist once someone has looked and measured. Asking a question before you travel costs nothing.

Not sure yet? Start with a consultation.

Before & After

See real procedure results.

View before & after photos
FAQ

Common questions about the ultrasound consultation

No. Ultrasound is a way of checking the current state; the judgement is made with the history and the physical examination alongside it. Measured values shift with probe pressure, the exact site measured and the examiner, so they are not a conclusion on their own.

No. Doppler is used when vessels need to be checked. It is not a routine examination performed for every patient and every operation.

No. The measurement records present thickness and boundaries; it is not a device that predicts a post-operative appearance. A consultation sets a design scope rather than a prediction.

Not necessarily. Body-composition measurement gives whole-body estimates and does not replace fat thickness in a specific area. Whole-body numbers can sit in the normal range while subcutaneous fat in one area is thick — and the reverse also happens.

No generalised clinical cut-off of that kind is established. At the same thickness, the judgement still changes with the change you want, your skin condition, and how the area connects to the ones next to it.

Consultation

Wondering which procedure suits you?

Our lead surgeon analyzes with ultrasound and designs a personalized plan.

Book a Consultation

서울특별시 서초구 강남대로 509, 하늘안과빌딩 B동 8층
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