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Prospective Paired Evaluation of Conventional Versus Structured Magnetic Resonance Imaging Interpretation for Preoperative Assessment of Gluteal Permanent Synthetic Filler Disease
Sponsor: Research Inc
Summary
This prospective paired diagnostic-impact study will compare conventional qualitative MRI reporting with a new structured anatomic classification in adults undergoing surgery for gluteal permanent synthetic filler disease. The structured report will document material effects across superficial, deep, muscular, regional, lymphatic, and interstitial compartments. Standardized intraoperative mapping will serve as the reference standard. The main outcome is the difference in sensitivity for surgically confirmed compartment involvement
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
OBSERVATIONAL
Enrollment
200
Start Date
2026-10-01
Completion Date
2026-12-31
Last Updated
2026-09-08
Healthy Volunteers
No
Conditions
Interventions
Conventional Qualitative MRI Interpretation
The report records the presence or absence of injected foreign material in the gluteal region and any routinely reported findings. A preliminary surgical plan is recorded after review of this report. Linked arm/group(s): Paired MRI Interpretation Cohort.
Structured Gluteal Filler MRI Classification
The report records material distribution and severity in predefined compartments: fat-fascia interface, subcutaneous fat, deep fascia, gluteal muscles, subcrestal region, ischial region, trochanteric region, pelvic ring, lymphatic pathways, and interstitial involvement. The final classification manual and grade definitions will be locked before enrollment. Linked arm/group(s): Paired MRI Interpretation Cohort.
Standardized Intraoperative Anatomic Mapping
During the index operation, the surgeon documents actual involvement of each predefined compartment before reviewing the imaging accuracy analysis. Operative photographs, specimen mapping, and histopathology may support the reference standard. Linked arm/group(s): Paired MRI Interpretation Cohort.