Rotator Cuff Tears
Conditions
Keywords
Rotator Cuff Tears, MRI, Ultrasonographic explorations
Brief summary
The project aims to evaluate the contribution of texture analysis on MRI sections, and the technical feasibility, reproducibility, and clinical relevance of quantitative ultrasound and elastography to characterize the composition and volume of infraspinatus muscle in postero-superior rotator cuff tears. The perspectives are to optimize the imaging to allow a quantitative, objective and reproducible analysis of the muscle tissue and its characteristics.
Detailed description
The rotator cuff of the shoulder consists of 4 tendinomuscular units including the infraspinatus. This complex system fulfils a double role: stabilization/coaptation (raising the arm) and arm mobility (especially external rotation). Rupture of rotator cuff tendons is frequent (\> 80% among chronic shoulder pain). They go with a decrease in muscle volume (amyotrophy) and irreversible fat infiltration. The treatment is medical and then surgical (if necessary). The degrees of atrophy and muscle infiltration (especially infraspinatus) are the criteria of choice for surgery. Actually, they are assessed in MRI according to the classification of Fuchs; it is operator dependent, qualitative and poorly reproducible with a strong inter-observer variability. Our team highlighted (2016) the possibility of using texture analysis software to objectively measure the proportion of fatty tissue on MRI sections of the cuff rotator muscles. This work also showed the possibility of using mode B ultrasound for morphological imaging and shear wave elastography to estimate the elasticity of the infraspinatus. The project aims to evaluate the contribution of texture analysis on MRI sections, and the technical feasibility, reproducibility, and clinical relevance of quantitative ultrasound and elastography to characterize the composition and volume of infraspinatus muscle in postero-superior rotator cuff tears. The perspectives are to optimize the imaging to allow a quantitative, objective and reproducible analysis of the muscle tissue and its characteristics.
Interventions
OTHERMRI
MRI on both shoulder
OTHERultrasonographic explorations
ultrasound and elastography explorations on both shoulder
Sponsors
University Hospital, Tours
Institut National de la Santé Et de la Recherche Médicale, France
Study design
Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
35 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* ≥ 35 years-old and ≤75 years-old * tendonous, transfixing, postero-superior, unilateral and symptomatic rotator cuff lesions * controlateral shoulder without symptom, without rotator cuff injuries, without medical ou surgical history * written informed consent * affiliation to a social security system
Exclusion criteria
* pregnant woman * patient under legal protection * contraindications to MRI * traumatic or surgical or medical relevant history on shoulder * general or local disease affecting the skeletal striated muscle
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| MRI Texture Index (MTI) | up to 2 months | MRI texture index (MTI) on the healthy side and pathological side |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Ultrasound Texture Index (UTI) | up to 2 months | Ultrasound Texture Index (UTI) on the healthy side and pathological side |
| velocity of shear wave in m.s-1 | up to 2 months | shear wave velocity on the healthy side and pathological side |
Countries
France
Outcome results
None listed