- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04396288
Ultrasound Imaging-based Measurement of Intra-osseous Vascular Response
March 8, 2024 updated by: Guillaume RENAUD, Institut National de la Santé Et de la Recherche Médicale, France
Characterization of Intra-osseous Vascular Response With Ultrasound Imaging on Healthy Volunteers
Blood circulation within bone is thought to have a key role in bone growth, in fracture healing and in the development of bone diseases like osteoporosis.
Current medical imaging techniques such as conventional ultrasonography fail to detect blood circulation within bone.
The investigators propose to develop a new type of ultrasonography called intraosseous functional ultrasonography that will enable the detection and the characterization of blood circulation in solid bone tissue, marrow and soft tissues surrounding bone (muscle for instance).
Because most soft tissues are essentially made of water, the speed of sound in soft tissues is close to that in water and it varies only a little between different types of soft tissues.
For this reason, clinical ultrasound scanners used for ultrasonography assume that the speed of sound in the human body is the same for all types of soft tissues.
This assumption is reasonable in soft tissues, but it does not hold in bone because solid bone tissue is much stiffer than soft tissues.
Seismologists have extensive experience in producing images of the structure of the Earth based on the analysis of elastic waves which follow the same laws of Physics as ultrasound waves.
The subsurface of the Earth contains layers of solid materials and liquids, consequently it is very similar to a region of the human body containing bone and soft tissues.
Therefore the investigators will first work on the adaption of time-tested seismic imaging methods to make ultrasonography of bone possible.
Once a correct image of bone is obtained, the investigators will use an ultrasound scanner dedicated to research to repeat this image hundreds of times per second, very much like a slow motion video.
Because blood is moving while bone is still, the intensity in the image is being slightly changed where blood is moving.
Thus the analysis of these changes makes it possible to detect and characterize blood flow within bone.
In this way the investigators expect to be able to detect blood flowing with a speed as low as a few millimeters per second.
Finally the sensitivity of the technique to detect and characterize blood circulation in bone will be evaluated in patients at the hospital and in healthy volunteers.
The success of this work will help gaining knowledge on the role of blood circulation within bone.
In the long term, it may help in the diagnosis of bone diseases.
Study Overview
Status
Completed
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
19
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
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Paris, France
- Service de Radiologie polyvalente et oncologique, hôpital La Pitié-Salpêtrière
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- be 18 years old or older
- speaks good French
- have an affiliation to a French Healthcare system (health insurance)
- sign the informed consent
Exclusion Criteria:
- bone fracture at the tibia or at the forearm less than one year ago
- injury or wound still present at the tibia or at the forearm
- pregnant women
- protected persons
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Healthy volunteers
|
ultrasound imaging will be performed at the radius bone (forearm) and at the tibia, before, during, and after a change of intraosseous blood flow
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change of velocity of blood flow in cortical bone and in marrow, before, during, and after the action of an automatic blood pressure cuff at the forearm (radius bone)
Time Frame: Up to 10 secondes immediately before the action of an automatic blood pressure cuff, during the action of an automatic blood pressure cuff (about 20 secondes), and up to 10 secondes immediately after the action of an automatic blood pressure cuff
|
Using ultrasound imaging, the velocity (mm/s) of blood circulation in cortical bone and in marrow will be assessed at the forearm (radius bone).
Changes induced by the action of an automatic blood pressure cuff will be measured.
|
Up to 10 secondes immediately before the action of an automatic blood pressure cuff, during the action of an automatic blood pressure cuff (about 20 secondes), and up to 10 secondes immediately after the action of an automatic blood pressure cuff
|
Change of direction of blood flow in cortical bone and in marrow, before, during, and after the action of an automatic blood pressure cuff at the forearm (radius bone)
Time Frame: Up to 10 secondes immediately before the action of an automatic blood pressure cuff, during the action of an automatic blood pressure cuff (about 20 secondes), and up to 10 secondes immediately after the action of an automatic blood pressure cuff
|
Using ultrasound imaging, the direction (degree) of blood circulation in cortical bone and in marrow will be assessed at the forearm (radius bone).
Changes induced by the action of an automatic blood pressure cuff will be measured.
|
Up to 10 secondes immediately before the action of an automatic blood pressure cuff, during the action of an automatic blood pressure cuff (about 20 secondes), and up to 10 secondes immediately after the action of an automatic blood pressure cuff
|
Change of velocity of blood flow in cortical bone and in marrow at the tibia, if changing position from sitting position to supine head-down tilt position
Time Frame: During sitting position (up to 5 minutes), then during supine head-down tilt position (up to 5 minutes)
|
Using ultrasound imaging, the velocity (mm/s) of blood circulation in cortical bone and in marrow will be assessed at the tibia.
Changes induced by the change of position will be measured.
|
During sitting position (up to 5 minutes), then during supine head-down tilt position (up to 5 minutes)
|
Change of direction of blood flow in cortical bone and in marrow at the tibia, if changing position from sitting position to supine head-down tilt position
Time Frame: During sitting position (up to 5 minutes), then during supine head-down tilt position (up to 5 minutes)
|
Using ultrasound imaging, the direction (degree) of blood circulation in cortical bone and in marrow will be assessed at the tibia.
Changes induced by the change of position will be measured.
|
During sitting position (up to 5 minutes), then during supine head-down tilt position (up to 5 minutes)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Repeatability of the measurement of the change of intraosseous blood circulation at the forearm under the action of an automatic blood pressure cuff
Time Frame: Up to 10 secondes immediately before the action of an automatic blood pressure cuff, during the action of an automatic blood pressure cuff (about 20 secondes), and up to 10 secondes immediately after the action of an automatic blood pressure cuff
|
The action of the automatic blood pressure cuff will be repeated 5 times.
The ultrasound transducer will be systematically removed and replaced between each repetition, in order to assess the reproducibility of the measurement.
|
Up to 10 secondes immediately before the action of an automatic blood pressure cuff, during the action of an automatic blood pressure cuff (about 20 secondes), and up to 10 secondes immediately after the action of an automatic blood pressure cuff
|
Repeatability of the measurement of the change of intraosseous blood circulation at the tibia when changing position from sitting position to supine head-down tilt position
Time Frame: During sitting position (up to 5 minutes), then during supine head-down tilt position (up to 5 minutes)
|
The change of position from sitting position to supine head-down tilt position will be repeated 5 times.
The ultrasound transducer will be systematically removed and replaced between each repetition, in order to assess the reproducibility of the measurement.
|
During sitting position (up to 5 minutes), then during supine head-down tilt position (up to 5 minutes)
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
September 14, 2021
Primary Completion (Actual)
December 14, 2022
Study Completion (Actual)
January 30, 2024
Study Registration Dates
First Submitted
May 5, 2020
First Submitted That Met QC Criteria
May 15, 2020
First Posted (Actual)
May 20, 2020
Study Record Updates
Last Update Posted (Actual)
March 12, 2024
Last Update Submitted That Met QC Criteria
March 8, 2024
Last Verified
March 1, 2024
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- C19-30
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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