Study on quantitative perfusion parameters acquired on MR imaging of patients with non-tumoral pathology of the musculoskeletal system.
Patients referred for the MR imaging evaluation of non-tumoral musculoskeletal pathology (osteonecrosis, pseudarthrosis and compartment syndrome) will have their MR protocols complemented by a contrast enhanced perfusion study. In this patients standard clinical evaluation is already performed with contrast medium injection (Gadolinium) and no additional injection is required. After post processing multiple quantitative perfusions parameters will be extracted (e.g. plasmatic volume, transfer constant, backflow constant, extra-cellular extra vascular space volume). The variation of these parameters in patients with and without the previously described conditions will be compared.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
400
One T1 mapping acquisition with variable flip angles will be performed before contrast injection. One perfusion 3D FSPGR sequence will be acquired after contrast injection
CCIAL, CHRU-Lille
Lille, Hauts-de-France, France
RECRUITINGService d'Imagerie Guilloz, CHRU-Nancy
Nancy, Lorraine, France
RECRUITINGVariation of the plasmatic volume estimation in the 5 study groups (arms) and between the images acquired in the two inclusion sites.
The plasmatic volume (Vp%) in ml is a quantitative perfusion parameter that describes the capillar density of the tissues evaluated and can be useful in tissue characterization
Time frame: 3 years
Variation of the plasma-extra-cellular space transfer constant in the 5 study groups (arms) and between the images acquired in the two inclusion sites.
The plasma-extracellular space transfer constant (Ktrans) in min -1 is a quantitative perfusion parameter that is related to the capillar permeability and blood flow. This parameter can be useful for tissue characterization.
Time frame: 3 years
Variation of the extra-cellular space-plasma transfer constant (backflow constant) in the 5 study groups (arms) and between the images acquired in the two inclusion sites.
The extracellular-space-plasma transfer constant or backflow constant (Kep) in min -1 is a quantitative perfusion parameter that is related to the capillar permeability. This parameter can be useful for tissue characterization.
Time frame: 3 years
Variation of the extra-cellular extra-vascular space volume in the 5 study groups (arms) and between the images acquired in the two inclusion sites.
The extracellular-space extra-vascular space volume (Ve%) in ml is a quantitative perfusion parameter that is related to the tissue cellularity. This parameter can be useful for tissue characterization.
Time frame: First 6 months of inclusion
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