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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04074733
Other study ID # PHRCi/2018/AL-01
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date October 21, 2019
Est. completion date October 20, 2023

Study information

Verified date January 2023
Source Centre Hospitalier Universitaire de Nimes
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The conventional standard-dose scanner leads to a significantly greater X-ray exposure than the standard X-ray. Recently, technological innovations like the ULD ("Ultra Low Dose") scanner have been developed to reduce the dose of X-rays delivered to the patient. The general purpose of this study is to validate the ULD scanner in case of emergency trauma of the dorsolumbar spine, pelvis and / or extremities.


Description:

The main purpose of this study is to compare the diagnostic performances of the ULD scanner with those of the standard X-ray when looking for fractures of the dorsolumbar region, the pelvis, proximal femur or the extremities, in an emergency situation in adults, once the diagnosis of fracture has been ascertained by the classical standard-dose scanner (gold standard). The statistical analyses will be performed with the help version 9.4 or subsequent versions of SAS software (SAS Institute, Cary, NC, USA) and/or version 3.5.1 or subsequent versions of R software (R Development Core Team (2018). R Foundation for Statistical Computing, Vienna, Austria). The secondary objectives of this study are to: A. Compare the diagnostic performances of the two examination methods under study (ULD scan vs. standard X-ray) in the search for bone structure anomalies, damage to the soft tissues, damage to the joints and/or discopathies at the site(s) involved. B. Compare the diagnostic performances of the two examination methods under study) (ULD scan vs. standard X-ray) in the search for fractures of the site involved. C. Evaluate the diagnostic agreement between two readers (senior radiologist and junior radiologist) for each of the two examination methods under study (ULD scan vs. standard X-ray). D. Compare the radiologist's self-declared impression of each of the two examination methods under study (ULD scan vs. standard X-ray) in terms of subjective quality: overall image quality, diagnostic quality of the examination method and the level of confidence in the diagnosis made, overall and for each of the two readers (senior and junior). E. Compare the doses of X-rays administered for each of the two examination methods under study (ULD scan vs. standard X-ray). F. Compare the interpretation time for each examination method under study (ULD scan vs. standard X-ray), globally and for each of the two readers (senior and junior). For the evaluation of the diagnostic performances (main objective and secondary objectives A et B), only the senior radiologist's interpretation will be considered.


Recruitment information / eligibility

Status Recruiting
Enrollment 554
Est. completion date October 20, 2023
Est. primary completion date October 20, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Patient with a BMI <40 kg / m² - Emergency department patient for trauma of the dorso-lumbar spine, pelvis, proximal femurs, and / or extremities requiring standard radiographs - Patient with painful symptomatology causing suspicion of a broken bone - Patient or family member / trusted person / family member who has given free and informed consent - Patient or family member / trusted person / family member who has signed the consent form - Patient beneficiary or affiliate of a health insurance plan Exclusion criteria: - Patient participating in a category 1 study - Patient in a period of exclusion determined by another study - Patient on under juridical protection, under curatorship or under guardianship - Patient for whom it is impossible to give informed information - Pregnant, parturient or nursing patient - Polytraumatised patient - Patients in vital emergency requiring urgent scanner

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
Patient undergoes a ULD scan
The following doses will be applied: 6 mGy.cm for the extremities 50 mGy.cm for the dorsal spine 130 mGy.cm for the lumbar spine 130 mGy.cm for the pelvis
Patient undergoes a standard X-ray
The following doses will be applied: For the pelvis : front view and profile for the hip. For the dorsal spine : front and profile. For the lumbar spine : front and profile For the extremities : front and profile
Patient undergoes a classic-dose scan
The following doses will be applied: 6 mGy.cm for the extremities 50 mGy.cm for the dorsal spine 130 mGy.cm for the lumbar spine 130 mGy.cm for the pelvis

Locations

Country Name City State
France Clinique du Parc Castelnau-le-Lez Hérault
France Centre Hospitalier de Mont-de-Marsan Mont-de-Marsan Nouvelle-Aquitaine
France Centre Hospitalier Universitaire Nîmes Gard
France Clinique de l'Union Saint-Jean Haute-Garonne

Sponsors (1)

Lead Sponsor Collaborator
Centre Hospitalier Universitaire de Nimes

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Presence of at least one fracture in the dorsal spine evaluated with a classical, standard-dose scan (Gold standard) YES/NO Day 0
Primary Presence of at least one fracture in the lumbar spine evaluated with a classical, standard-dose scan (Gold standard) YES/NO Day 0
Primary Presence of at least one fracture of the pelvis and proximal femurs evaluated with a classical, standard-dose scan (Gold standard) YES/NO Day 0
Primary Presence of at least one fracture of the hands / wrists evaluated with a classical, standard-dose scan (Gold standard) YES/NO Day 0
Primary Presence of at least one fracture of the feet /ankles evaluated with a classical, standard-dose scan (Gold standard) YES/NO Day 0
Primary Presence of at least one fracture in the dorsal spine evaluated with a ULD scan YES/NO Day 0
Primary Presence of at least one fracture in the lumbar spine evaluated with a ULD scan YES/NO Day 0
Primary Presence of at least one fracture in the pelvis and proximal femurs evaluated with a ULD scan YES/NO Day 0
Primary Presence of at least one fracture of the hands / wrists evaluated with a ULD scan YES/NO Day 0
Primary Presence of at least one fracture of the feet /ankles evaluated with a ULD scan YES/NO Day 0
Primary Presence of at least one fracture of the dorsal spine evaluated with a standard X-ray YES/NO Day 0
Primary Presence of at least one fracture of the lumbar spine evaluated with a standard X-ray YES/NO Day 0
Primary Presence of at least one fracture of the pelvis and proximal femurs evaluated with a standard X-ray YES/NO Day 0
Primary Presence of at least one fracture of the hands / wrists evaluated with a standard X-ray YES/NO Day 0
Primary Presence of at least one fracture of the feet /ankles evaluated with a standard X-ray YES/NO Day 0
Secondary Presence of an abnormality of the bone structure at the anatomic site(s) concerned evaluated with a classical Gold Standard scan YES/NO Day 0
Secondary Presence of an abnormality of the soft tissues at the anatomic site(s) concerned evaluated with a classical Gold Standard scan YES/NO Day 0
Secondary Presence of an abnormality of the joints at the anatomic site(s) concerned evaluated with a classical Gold Standard scan YES/NO Day 0
Secondary Presence of an abnormality of the invertebral discs at the anatomic site(s) concerned evaluated with a classical Gold Standard scan YES/NO Day 0
Secondary Presence of an abnormality of the bone structure at the anatomic site(s) concerned evaluated with a ULD scan YES/NO Day 0
Secondary Presence of an abnormality of the soft tissues at the anatomic site(s) concerned evaluated with a ULD scan YES/NO Day 0
Secondary Presence of an abnormality of the joints at the anatomic site(s) concerned evaluated with a ULD scan YES/NO Day 0
Secondary Presence of an abnormality of the invertebral discs at the anatomic site(s) concerned evaluated with a ULD scan YES/NO Day 0
Secondary Presence of an abnormality of the bone structure at the anatomic site(s) concerned evaluated with a standard X-ray YES/NO Day 0
Secondary Presence of an abnormality of the soft tissues at the anatomic site(s) concerned evaluated with a standard X-ray YES/NO Day 0
Secondary Presence of an abnormality of the joints at the anatomic site(s) concerned evaluated with a standard X-ray YES/NO Day 0
Secondary Presence of an abnormality of the intervertebral discs at the anatomic concerned site(s) evaluated with a standard X-ray YES/NO Day 0
Secondary Image quality of the ULD scanner and standard X-ray By means of a 4-point Likert scale, both the senior and junior radiologists can give their subjective impression of the overall image quality of each of the two examination methods under study (ULD scan vs. standard X-ray) by saying how much they agree or disagree that the overall quality of the image is good enough to detect a fracture. On the Lickert scale, 1- Uninterpretable, 2- Interpretable in spite of a slight technical problem (centering, movement, constant), 3-Completely interpretable in spite of a slight technical problem. 4- No technical problem. Day 0
Secondary Diagnostic quality of the ULD scanner and standard X-ray Using a 5-point Lickert scale (in which 1= Inacceptable, 2 = Sub-optimal, 3 = Acceptable, 4 = Above average, 5- Excellent) both the senior and junior radiologists will give their subjective impression of the overall diagnostic quality of each of the two examination methods under study (ULD scan vs. standard X-ray). Day 0
Secondary Confidence level of the ULD scanner and standard X-ray Using a 5-point Lickert scale (1- Very poor, 2- Poor, 3- Fair, 4- Good, 5- Excellent) both the senior and junior radiologists will give their subjective impression of their overall level of confidence in the diagnosis made for each of the two examination methods under study (ULD scan vs. standard X-ray). Day 0
Secondary Effective dose for each exam with the ULD scanner No. of millisieverts (mSv) Day 0
Secondary Effective dose for each exam with the standard X-ray No. of millisieverts (mSv) Day 0
Secondary Interpretation time for each exam with the ULD scanner Measured in minutes Day 0
Secondary Interpretation time for each exam with the standard X-ray Measured in minutes Day 0
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