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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03832556
Other study ID # 2018-A02783-52
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date April 30, 2019
Est. completion date February 7, 2023

Study information

Verified date March 2023
Source Assistance Publique - Hôpitaux de Paris
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The principal objective of the study is to compare between CT and MRI diagnostic performance (sensibility and specificity) in the preoperative assessment of neurogenic para-osteo-arthritis. The second objectives of the study are: - besides the diagnostic performance (sensibility and specificity), to evaluate the imaging par MRI in visual and descriptive manner heterotopic ossification and connection with vascular and nervous structures. - to study the concordance (two by two) of results of preoperative obtained by MRI and by CT and operative reports. - to study the characteristics of patients with discordant findings (two by two) by MRI, CT scan and operative report.


Description:

This is a study on diagnostic performance, non randomized, versus Gold standard (a prospective multicentric cohort). All eligible patients will be proposed consecutively to participate to the study, to undergo preoperative CT scan and MRI examination as usual procedure. The only additional action in this study will be a neurography sequence of type fluorescence subtraction imaging (FSI) during MRI, permitting to obtain more details in visualization of nerve structure and their relations of the ossifications. The enrollment visit will performed by neuro-orthopaedic surgeon during preoperative consultation. The follow-up visit will be an usual post-operative visit, non-specific for the study. The duration for each participant will compound 1 month (the duration between preoperative imaging and surgical resection) added by up to two months of post-operative follow-up.


Recruitment information / eligibility

Status Completed
Enrollment 23
Est. completion date February 7, 2023
Est. primary completion date February 7, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Adult patient with neurogenic para-osteo-arthropathy resulted by prior central nervous system, cerebral or medullar damage - Deformation with limitation of articular amplitude which could result limitation in rehabilitation care - An indication of partial or total surgical excision of heterotopic ossification - Indication of pre-operative assessment by CT scan and MRI, with contrast product injection - Signed consent of patient obtained after clear and relevant informations given by physician - Patient covered by social security Exclusion Criteria: - Contraindications to an MRI examination: cardiac stimulator, metallic intraocular foreign bodies... - Contraindications to CT scan - Contraindications to contrast injection product, such as iodinated or gadolinium-based contrast media - Impractical venous access - Severe deformation resulting impossibility to positioning for MRI examination or CT scan - Patient can not give consent - Participation to another interventional study - Patient under guardianship

Study Design


Intervention

Other:
CT scan
CT scan with biphasic injection of contrast product
MRI examination
MRI with injection of contrast

Locations

Country Name City State
France Service d'Imagerie médicale, Hôpital Raymond Poincaré Garches Hauts-de-Seine

Sponsors (1)

Lead Sponsor Collaborator
Assistance Publique - Hôpitaux de Paris

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Analysis and comparison of accurate topography of heterotopic ossification on the CT and the MRI Comparison of preoperative diagnostic performances of CT scan and MRI, based on analysis of topography of heterotopic ossification.
On each CT and MRI exam, analysis of accurate topography of heterotopic ossifications relative to the bones, the number of fragments, their relationships with the articular capsule, their mineralization, and the mineralization of the underlying bone.
through study completion, an average of 2 year
Primary Analysis and comparison of reporting arterial and venous anatomy Comparison of preoperative diagnostic performances of CT scan and MRI, based on analysis of reporting arterial and venous anatomy.
On each CT and MRI exam, analysis of vascular (arterial and veinous) relations with the heterotopic ossifications, in the case of contact specify the existence of a gutter or a tunnel, and the vessels permeability or occlusion.
through study completion, an average of 2 year
Primary Analysis and comparison of reporting nervous structures Comparison of preoperative diagnostic performances of CT scan and MRI, based on analysis of reporting nervous structures.
On each CT and MRI exam, analysis of nervous structures relations with the heterotopic ossifications, in the case of contact specify the existence of a gutter or a tunnel, and the the existence of suffering nerve or denervation signs.
through study completion, an average of 2 year
Secondary Performances of MRI for diagnosis of arterial-venous Performances of MRI for diagnosis of arterial-venous relation (gutter, stenosis, thrombosis or vascular occlusion, collateral circulation...) through study completion, an average of 2 year
Secondary Performances of MRI for diagnosis of nervous structures (nerve's location, nerve signal anomalies, signs of suffering and denervation...) through study completion, an average of 2 year
Secondary Rate of incidence of adverse event during surgical operation The rate of incidence of adverse event during surgical procedure will be calculated. through study completion, an average of 2 year
Secondary Concordance correlation coefficient Concordance correlation coefficient two by two (Gwet concordance coefficient for binary qualitative variables; and W of Kendal concordance coefficient for ordinal qualitative variables or quantitative variables) between results of preoperative MRI and CT and operative report describing arterial-venous relation, and nervous structures. through study completion, an average of 2 year
Secondary Characteristic of patients with discordant results Identify all discordances between CT or MRI and the surgery findings, about topography of heterotopic ossification, vascular relations and nervous structures relations.
Analysis of characteristics of patients with discordant results between preoperative MRI resluts or preoperative CT results relative to the operative report.
through study completion, an average of 2 year