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Bone MarrowPERFOSNCT02371824

Study of Normal Hip and Lumbar Bone Marrow With Dynamic Contrast Enhancement Magnetic Resonance Imaging

An observational study of Bone Marrow, run by University Hospital, Lille at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

DCE-MRI were performed in sixty adults (hips and lumbar spine). For each region of interest studied, the investigators determined the morphology of each time-concentration curve (TCC) and calculated semi-quantitative and pharmacokinetic parameters: initial slope (IS), area under the curve (AUC), time to peak (TTP)… Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Bone Marrow
What is being tested?
MRI sequence
How many people
60 participants
Where
1 siteFrance
Study dates
Apr 2014to Oct 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Study population: Adult patients referred to the musculoskeletal imaging department for a MRI examination of the hip or sacro-iliac joints with normal appearing bones on MR images.

Who may be able to join

  • Major patients
  • patients who requires MRI examination of the hip or sacro-iliac joints
  • patients who required a gadolinium injection for the clinical needs were included.
  • normal appearing bones on MR images.

Who cannot join

  • Patients under 18 years old,
  • pregnant women, prisoners,
  • patients unable to give informed consent,
  • patients very painful and non-cooperative patients,
  • Absolute contraindication to 3Tesla MRI (pacemaker, implantable pacemaker, metallic foreign body intraorbital)
  • patients with previous or current history of hip, neoplastic, inflammatory or hematologic diseases, known osteoporosis or osteopenia, hip orthopedic hardware, chronic renal failure, known hyperparathyroidism, known acute or chronic inflammatory syndrome.
  • abnormalities of the hip bones were seen on MR images, the patient was not included.

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hospital Center Roger Salengro

    Lille, 59037

Other trials in France

About this study

DCE-MRI were performed in sixty adults (hips and lumbar spine). For each region of interest studied, the investigators determined the morphology of each time-concentration curve (TCC) and calculated semi-quantitative and pharmacokinetic parameters: initial slope (IS), area under the curve (AUC), time to peak (TTP), Ktrans, Kep and Ve. Clinical data were collected anamnestically.

Read the detailed description

MRI protocol Patients were examined on a 3T MR scan (Ingenia, Philips Healthcare, The Netherlands). Conventional sequences were acquired depending on the clinical problem. A T1 spin echo sequence imaged the right hip in the coronal plane. A previously described Dynamic 3D T1 Spoiled Gradient Echo covered the right hip (8). Its main features were as follows. 94 axial slices covered a Field of View (FOV) of 228 x 130 x 169 mm. TR, TE, flip angle and bandwidth per pixel were respectively 4.5 and 2.1 ms, 10°, 389 Hz. Acquisition and reconstruction matrix were 64 x 66 and 128 x 128 respectively. Temporal resolution was 13.5 seconds.

Three variable flip angles (VFA) sequences (3°, 10° and 17°) were acquired before injection. Each acquisition lasted 55 seconds. Five baseline scans were acquired. 0.1 mmol/kg of gadoteric acid (DOTAREM, Guerbet, France) were injected at the beginning of the sixth scan at a rate of 2.5ml/sec followed by 20cc of saline flush. Twenty dynamic scans were collected. Total examination time was 9 minutes.

Post-processing The investigators analyzed DCE images with the open-source software Osirix and DCE tool software (http://kyungs.bol.ucla.edu/software/DCE_tool/DCE_tool.html). A ROI was deposed in the common femoral artery to determine Arterial Input Function. T1 map was calculated from VFA acquisitions. The precise r1 relaxivity (3.4) of the contrast agent was introduced. These elements were used to calculate the time / gadolinium concentration curve. Tofts model was used.

The morphology of the curve was assessed visually according to the description made by van Rijswik (10). For each ROI, semi-quantitative and pharmacokinetic parameters were calculated: initial slope (IS), area under the curve (AUC), time to peak (TTP), transfer constant (Ktrans), rate constant (Kep) and extravascular-extracellular space volume (Ve). IS calculation included points 5 to 15. AUC and TTP were calculated from points 5 to 25. Parametric maps were obtained for the illustration of this work, but were not used for the analysis itself in order to avoid bias in the deposition of ROIs.

Conditions
Bone Marrow
Being tested
MRI sequence
Keywords
Magnetic Resonance Imaging, Bone Marrow, Hip, Lumbar Vertebrae

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MRI sequenceOther

    Also called Supplementary MRI sequence

    One supplementary MRI sequence Dynamic Contrast Enhancement (DCE) was added to the clinical protocol.

Study groups in NCT02371824
Study groupRoleWhat they receive
MRI SequenceNot described
Receives: Other: MRI sequence

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Measure of transfer constant (Ktrans)

    This measure reflecting tissular perfusion is made in all the regions of interest.

    Measured: On the day of the visit

  2. Measure of rate constant (Kep)

    This measure reflecting tissular perfusion is made in all the regions of interest.

    Measured: On the day of the visit

  3. Measure of extra-vascular extra-cellular space (Ve)

    This measure reflecting tissular perfusion is made in all the regions of interest.

    Measured: On the day of the visit

  4. Measure of the initial slope (IS) of the Time-Concentration Curves

    This measure reflecting tissular perfusion is made in all the regions of interest.

    Measured: On the day of the visit

  5. Measure of the area under the curve (AUC) on the Time-Concentration Curves

    This measure reflecting tissular perfusion is made in all the regions of interest.

    Measured: On the day of the visit

  6. Measure of the time to peak (TTP) on the Time-Concentration Curves

    This measure reflecting tissular perfusion is made in all the regions of interest.

    Measured: On the day of the visit

Secondary outcomes (8)
  1. Gender ratio

    In all the regions of interest, we sought for statistical correlation with the perfusion parameters listed as primary outcome measurements.

    Measured: On the day of the visit

  2. Age ratio

    In all the regions of interest, we sought for statistical correlation with the perfusion parameters listed as primary outcome measurements.

    Measured: On the day of the visit

  3. body mass index

    In all the regions of interest, we sought for statistical correlation with the perfusion parameters listed as primary outcome measurements.

    Measured: On the day of the visit

  4. number of smokers

    In all the regions of interest, we sought for statistical correlation with the perfusion parameters listed as primary outcome measurements.

    Measured: On the day of the visit

  5. number of alcohol consumers

    In all the regions of interest, we sought for statistical correlation with the perfusion parameters listed as primary outcome measurements.

    Measured: On the day of the visit

  6. number of participants with diabetes

    In all the regions of interest, we sought for statistical correlation with the perfusion parameters listed as primary outcome measurements.

    Measured: On the day of the visit

  7. number of participants with hypertension

    In all the regions of interest, we sought for statistical correlation with the perfusion parameters listed as primary outcome measurements.

    Measured: On the day of the visit

  8. number of participants with hypercholesterolemia

    In all the regions of interest, we sought for statistical correlation with the perfusion parameters listed as primary outcome measurements.

    Measured: On the day of the visit

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Feb 2015 (estimated)
  2. Study startApr 2014
  3. Primary completionOct 2014
  4. Study completionOct 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Cross-sectional
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02371824
Sponsor's protocol ID
2013_47
Other IDs
2013-A01708-37
Acronym
PERFOS
Status last verified
Feb 2015
First submitted
5 Jan 2015
Last updated
26 Feb 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Bone Marrow, run by University Hospital, Lille at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Feb 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Measure of transfer constant (Ktrans) (time frame: On the day of the visit). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Feb 2015.

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