Baseline Volume and Surface Asymmetry using 3D Surface Imaging (3D-SI) in a Breast Conserving Treatment (BCT) Population.
Association of Breast Surgery ePoster Library. Godden A. 05/13/19; 257156; P113
Ms. Amy Godden
REGULAR CONTENT
Login now to access Regular content available to all registered users.
Abstract
Discussion Forum (0)
Rate & Comment (0)
P113
Topic: Oncoplastic and aesthetic surgery
Introduction: Awareness of baseline surface and volume asymmetry pre-operatively is important for prediction of aesthetic outcome and potential correction intra-operatively. Many women are unaware of differences in their natural breasts which may be accentuated by BCT. MethodsAs part of a REC approved RCT, women had baseline 3D-SI using VECTRA prior to BCT. Surface asymmetry (root mean squared mm) and volume asymmetry (%) were calculated using a validated technique with MIRROR software. Surface asymmetry is calculated by reflecting the surface image of one breast across the midline on to the other breast and measuring the average distance between the surfaces. Results: 81/117 women have been recruited to date (projected completion January 2019). Asymmetry and volume calculation was possible in 78. Baseline surface asymmetry was not normally distributed. Median asymmetry was 3mm (min 1, max 13, IQR 2-4). Volume was normally distributed with a mean percentage asymmetry of 11% (range 0 - 33%). No association was seen between cancer side and larger breast. Conclusions: Baseline surface and volume asymmetry is highly variable in the pre-operative population. Surface asymmetry is more useful than volume as it encompasses volume and breast position in one measure; however surgeons are more accustomed at considering volume. It is important to have knowledge of pre-existing asymmetry for operative planning, for which 3D-SI can provide objective values. Highlighting baseline asymmetry may be useful to help manage expectations and aid decision-making regarding symmetrisation. In our experience women comment that 3D-SI illustrates their asymmetry better than looking in a mirror.
Topic: Oncoplastic and aesthetic surgery
Introduction: Awareness of baseline surface and volume asymmetry pre-operatively is important for prediction of aesthetic outcome and potential correction intra-operatively. Many women are unaware of differences in their natural breasts which may be accentuated by BCT. MethodsAs part of a REC approved RCT, women had baseline 3D-SI using VECTRA prior to BCT. Surface asymmetry (root mean squared mm) and volume asymmetry (%) were calculated using a validated technique with MIRROR software. Surface asymmetry is calculated by reflecting the surface image of one breast across the midline on to the other breast and measuring the average distance between the surfaces. Results: 81/117 women have been recruited to date (projected completion January 2019). Asymmetry and volume calculation was possible in 78. Baseline surface asymmetry was not normally distributed. Median asymmetry was 3mm (min 1, max 13, IQR 2-4). Volume was normally distributed with a mean percentage asymmetry of 11% (range 0 - 33%). No association was seen between cancer side and larger breast. Conclusions: Baseline surface and volume asymmetry is highly variable in the pre-operative population. Surface asymmetry is more useful than volume as it encompasses volume and breast position in one measure; however surgeons are more accustomed at considering volume. It is important to have knowledge of pre-existing asymmetry for operative planning, for which 3D-SI can provide objective values. Highlighting baseline asymmetry may be useful to help manage expectations and aid decision-making regarding symmetrisation. In our experience women comment that 3D-SI illustrates their asymmetry better than looking in a mirror.
P113
Topic: Oncoplastic and aesthetic surgery
Introduction: Awareness of baseline surface and volume asymmetry pre-operatively is important for prediction of aesthetic outcome and potential correction intra-operatively. Many women are unaware of differences in their natural breasts which may be accentuated by BCT. MethodsAs part of a REC approved RCT, women had baseline 3D-SI using VECTRA prior to BCT. Surface asymmetry (root mean squared mm) and volume asymmetry (%) were calculated using a validated technique with MIRROR software. Surface asymmetry is calculated by reflecting the surface image of one breast across the midline on to the other breast and measuring the average distance between the surfaces. Results: 81/117 women have been recruited to date (projected completion January 2019). Asymmetry and volume calculation was possible in 78. Baseline surface asymmetry was not normally distributed. Median asymmetry was 3mm (min 1, max 13, IQR 2-4). Volume was normally distributed with a mean percentage asymmetry of 11% (range 0 - 33%). No association was seen between cancer side and larger breast. Conclusions: Baseline surface and volume asymmetry is highly variable in the pre-operative population. Surface asymmetry is more useful than volume as it encompasses volume and breast position in one measure; however surgeons are more accustomed at considering volume. It is important to have knowledge of pre-existing asymmetry for operative planning, for which 3D-SI can provide objective values. Highlighting baseline asymmetry may be useful to help manage expectations and aid decision-making regarding symmetrisation. In our experience women comment that 3D-SI illustrates their asymmetry better than looking in a mirror.
Topic: Oncoplastic and aesthetic surgery
Introduction: Awareness of baseline surface and volume asymmetry pre-operatively is important for prediction of aesthetic outcome and potential correction intra-operatively. Many women are unaware of differences in their natural breasts which may be accentuated by BCT. MethodsAs part of a REC approved RCT, women had baseline 3D-SI using VECTRA prior to BCT. Surface asymmetry (root mean squared mm) and volume asymmetry (%) were calculated using a validated technique with MIRROR software. Surface asymmetry is calculated by reflecting the surface image of one breast across the midline on to the other breast and measuring the average distance between the surfaces. Results: 81/117 women have been recruited to date (projected completion January 2019). Asymmetry and volume calculation was possible in 78. Baseline surface asymmetry was not normally distributed. Median asymmetry was 3mm (min 1, max 13, IQR 2-4). Volume was normally distributed with a mean percentage asymmetry of 11% (range 0 - 33%). No association was seen between cancer side and larger breast. Conclusions: Baseline surface and volume asymmetry is highly variable in the pre-operative population. Surface asymmetry is more useful than volume as it encompasses volume and breast position in one measure; however surgeons are more accustomed at considering volume. It is important to have knowledge of pre-existing asymmetry for operative planning, for which 3D-SI can provide objective values. Highlighting baseline asymmetry may be useful to help manage expectations and aid decision-making regarding symmetrisation. In our experience women comment that 3D-SI illustrates their asymmetry better than looking in a mirror.
Code of conduct/disclaimer available in General Terms & Conditions
{{ help_message }}
{{filter}}