Laser-based Photoacoustic Tomography of Human Inflammatory Arthritis

This study is currently recruiting participants. (see Contacts and Locations)
Verified April 2015 by University of Michigan
Information provided by (Responsible Party):
Xueding Wang, University of Michigan Identifier:
First received: September 4, 2008
Last updated: April 7, 2015
Last verified: April 2015

The purpose of this feasibility study is to determine if a new emerging technology called photoacoustic tomography (PAT) can be adapted for use in humans for the detection of chronic rheumatoid arthritis.

Condition Intervention Phase
Arthritis, Rheumatoid
Procedure: Laser Based Photoacoustic Tomography, MRI, Ultrasound
Procedure: laser based photoacoustic tomography, MRI, ultrasound
Phase 0

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Laser-based Photoacoustic Tomography of Human Inflammatory Arthritis

Resource links provided by NLM:

Further study details as provided by University of Michigan:

Primary Outcome Measures:
  • Photoacoustic Imaging [ Time Frame: 2 weeks ] [ Designated as safety issue: No ]
    To determine if photoacoustic imaging (PAT) can accurately assist in the diagnosis of chronic rheumatoid arthritis

Estimated Enrollment: 120
Study Start Date: February 2008
Estimated Study Completion Date: June 2016
Estimated Primary Completion Date: October 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Rheumatoid Arthritis
Active disease
Procedure: Laser Based Photoacoustic Tomography, MRI, Ultrasound
Tomography, MRI, and ultrasound of both hands
Other Names:
  • MRI,magnetic resonance imaging
  • US, ultrasound
  • PAT, laser based photoacoustic tomography
Active Comparator: Normal controls
Healthy volunteers
Procedure: laser based photoacoustic tomography, MRI, ultrasound
laser based photoacoustic tomography, MRI, and ultrasound of both hands
Other Names:
  • laser based photoacoustic tomography
  • MRI
  • Ultrasound

Detailed Description:

The objective of this proposal is to adapt photoacoustic tomography (PAT), a novel, nonionizing, noninvasive, laser-based technology, for structural and functional imaging of human peripheral joints affected by inflammatory arthritis. Combining the merits of light and ultrasound, PAT holds promise to present objective optical information in subsurface joint tissues with high sensitivity and high spatial resolution, which could be of considerable help in the early detection of inflammatory joint diseases. PAT may also prove useful in further understanding the pathophysiology of these disorders and assisting with therapeutic decisions, including assessment of new pharmacological therapies.


Ages Eligible for Study:   18 Years to 60 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Men and women 18 years of age through age 60 can participate in this study.
  • Patients can participate in this study if they have had rheumatoid arthritis for more than 2 years and their rheumatologist has referred them to this study.
  • Patients can participate as a healthy volunteer with a known history of rheumatoid arthritis.

Exclusion Criteria:

  • Patients, who have electrically, magnetically or mechanically activated implants such as heart pacemaker, magnetic surgical clips, prostheses or implanted neurological stimulator.
  • Pregnant patients.
  • Patients who is claustrophobic.
  • Patients with impaired renal function cannot participate in this study such as elevate creatinine clearance, patients on kidney dialysis etc.
  • Patients with shock hypotension or unstable low blood pressure.
  • Patients with Rhabdomyolysis.
  • Patients who have had a contrast enhanced (with gadolinium) MRA(magnetic resonance angiography)/MRI within the last 3 months. (Contrast is a medication injected into a vein during a imaging examination that helps produce clearer images/pictures).
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00748254

Contact: Xueding Wang, PhD 734 647-2728

United States, Michigan
Universtity of Michigan Health System Recruiting
Ann Arbor, Michigan, United States, 48109
Principal Investigator: Xueding Wang, PHD         
Sponsors and Collaborators
University of Michigan
Principal Investigator: Xueding Wang, Ph.D University of Michigan
  More Information

No publications provided

Responsible Party: Xueding Wang, Principal Investigator, University of Michigan Identifier: NCT00748254     History of Changes
Other Study ID Numbers: HUM00003693
Study First Received: September 4, 2008
Last Updated: April 7, 2015
Health Authority: United States: Institutional Review Board

Keywords provided by University of Michigan:
Rheumatoid arthritis

Additional relevant MeSH terms:
Arthritis, Rheumatoid
Autoimmune Diseases
Connective Tissue Diseases
Immune System Diseases
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases processed this record on August 31, 2015