Quantitative Appraisal Through MRI of Breast Tissue Thickness and Implant Projection After Breast Augmentation with High- and Extra-High-Profile Round Implants
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Changes in breast tissue thickness and in implant projection 5 years after augmentation with high- and extra-high-profile round implants were measured through MRI with a DICOM standard viewer.
Twenty-four females with small-volume breast asymmetry without hypertrophy or ptosis underwent subfascial breast augmentation for cosmetic purposes, by using micro-textured soft cohesive silicone gel-filled round implants, from a single manufacturer. MRI measured the linear antero-posterior dimension of breast tissue thickness and projection of the implants. Statistical analysis of data was performed by Pearson correlation coefficient, line graph, and scatter diagram.
The “r” of Pearson for right and left breasts indicated a significant correlation between the breast tissue thickness before and 5 years after augmentation. Closeness of the lines displayed in the line graph indicated strong linear positive correlation between the breast tissue thicknesses. The “r” values for projection of right and left implants indicated a significant correlation between the projection standardized by the manufacturer and that encountered 5 years after augmentation with high- and extra-high-profile round implants. A scatter diagram of data indicated a strong positive correlation between implant projection standardized by the manufacturer and that encountered 5 years after augmentation, on both breasts.
Soft cohesive silicone gel-filled high- and extra-high-profile round implants supported breast tissue compressing without significant loss of the implant projection. Despite the consistency of the soft cohesive silicone gel, the implant softness and flexibility were preserved, resulting in low-pressure gradient over the mammary parenchyma without significant changes of the breast tissue thickness.
EBM Level IV
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KeywordsMammary parenchyma Breast Breast implants Implant profile Nipples Magnetic resonance imaging
Compliance with Ethical Standards
Conflict of interest
No financial support or benefits have been received by the author or any co-author to accomplish this manuscript.
All procedures performed in this study involving humans participants were in accordance with the ethical standards of the ACA - Institute of Assistance in Plastic Surgery of São Paulo research committee and with the 1964 Helsinki Declaration and Medical Research Involving Human Subjects and its latter amendments or comparable ethical standards.
All patients provided informed consent.