Diese Seite wurde automatisch übersetzt und die Genauigkeit der Übersetzung wird nicht garantiert. Bitte wende dich an die englische Version für einen Quelltext.

Musculoskeletal Ultrasound for Differentiating Rheumatoid and Gouty Arthritis

14. Juni 2026 aktualisiert von: Kiroles Bassem Fikrey Ramzy, Assiut University

Role of Musculoskeletal Ultrasound in Differentiation of Rheumatoid Arthritis and Gouty Arthritis Using Semi-Quantitative Scoring

Rheumatoid arthritis (RA) and gouty arthritis (GA) are two common forms of joint inflammation that can present with very similar physical symptoms, making them difficult to tell apart early in the disease process. Accurate and early differentiation is crucial because the treatment strategies and long-term management for the two conditions are substantially different.

The primary purpose of this observational study is to evaluate the diagnostic performance of musculoskeletal ultrasound (MSUS) in distinguishing between RA and GA. Ultrasound is a safe, radiation-free imaging tool that can visualize joint inflammation and structural changes in real-time. This study utilizes a structured semi-quantitative scoring system (graded on a scale of 0 to 3) to systematically measure the severity of joint lining thickness (synovial hypertrophy) and active blood flow (power Doppler signal). It also checks for crystal-related deposits, such as tophi or the double contour sign, which are highly suggestive of gout.

Participants aged 18 and older with suspected or confirmed RA or GA who are referred for joint assessment at Assiut University Hospitals will undergo a standard clinical evaluation, routine laboratory testing, and an ultrasound examination of specific target joints (such as the wrists, hands, knees, and ankles). By comparing the ultrasound scores and specific structural findings between the two patient groups, the study aims to establish a reliable, standardized imaging approach to help physicians make faster, more confident diagnoses and initiate the correct disease-specific therapies sooner.

Studienübersicht

Studientyp

Beobachtungs

Einschreibung (Geschätzt)

100

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

N/A

Probenahmeverfahren

Nicht-Wahrscheinlichkeitsprobe

Studienpopulation

The study population consists of adult patients, aged 18 years or older, of either sex. It includes individuals presenting with clinically suspected or confirmed rheumatoid arthritis or gouty arthritis. These participants are specifically those referred to the radiology department at Assiut University Hospitals in Assiut, Egypt, for a musculoskeletal ultrasound assessment of painful, swollen, or inflamed joints.

Beschreibung

Inclusion Criteria:

  • Patients aged 18 years or older.
  • Either sex.
  • Patients with clinically suspected or confirmed rheumatoid arthritis.
  • Patients with clinically suspected or confirmed gouty arthritis.
  • Patients referred for musculoskeletal ultrasound assessment of painful, swollen, or inflamed joints.
  • Patients able and willing to provide informed consent.
  • Patients whose final diagnosis is established by clinical assessment, laboratory testing, and/or relevant imaging or synovial fluid analysis when available.

Exclusion Criteria:

  • Patients younger than 18 years.
  • Patients with septic arthritis or suspected joint infection.
  • Patients with traumatic joint injury involving the target joint.
  • Patients with other inflammatory arthropathies such as psoriatic arthritis, reactive arthritis, or systemic lupus erythematosus if they may confound imaging interpretation.
  • Patients with advanced osteoarthritis in the scanned joint if it markedly limits Faculty of Medicine Institutional Review Board (IRB) Assiut Medical School Research Proposal Form 5 interpretation.
  • Patients with incomplete clinical records or insufficient ultrasound windows.
  • Patients who refuse consent.
  • Patients whose diagnosis remains uncertain after clinical workup.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

Kohorten und Interventionen

Gruppe / Kohorte
Rheumatoid Arthritis Cohort
Patients aged 18 years or older presenting with clinically suspected or confirmed rheumatoid arthritis. Participants undergo standard clinical and laboratory assessment followed by a musculoskeletal ultrasound examination of target joints (including wrists, metacarpophalangeal joints, proximal interphalangeal joints, knees, and ankles). The ultrasound evaluates the presence and severity of gray-scale synovitis, power Doppler vascularity, joint effusion, and bone erosions using a 0-3 semi-quantitative scoring system.
Gouty Arthritis Cohort
Patients aged 18 years or older presenting with clinically suspected or confirmed gouty arthritis. Participants undergo standard clinical and laboratory assessment followed by a musculoskeletal ultrasound examination of target joints, particularly the first metatarsophalangeal joint and other symptomatic areas. The ultrasound applies a semi-quantitative scoring system to evaluate inflammatory changes and specifically targets crystal-related findings, including the double contour sign, tophus formation, hyperechoic aggregates, and erosions with overhanging edges.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Semi-quantitative Gray-Scale Synovitis Score
Zeitfenster: Baseline (Single assessment at the time of the cross-sectional ultrasound examination)
Synovial hypertrophy evaluated using high-resolution musculoskeletal ultrasound, graded on a 0 to 3 scale where 0 indicates no synovial thickening, 1 indicates mild synovial hypertrophy, 2 indicates moderate synovial hypertrophy, and 3 indicates severe synovial hypertrophy.
Baseline (Single assessment at the time of the cross-sectional ultrasound examination)

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Semi-quantitative Power Doppler Synovitis Score
Zeitfenster: Baseline (Single assessment)
Synovial vascularity evaluated using high-resolution musculoskeletal ultrasound, graded on a 0 to 3 scale where 0 indicates no Doppler signal, 1 indicates a mild signal, 2 indicates a moderate signal, and 3 indicates marked Doppler activity.
Baseline (Single assessment)
Presence of Double Contour Sign
Zeitfenster: Baseline (Single assessment)
The frequency of the double contour sign, representing urate crystal deposits on the articular cartilage, detected via musculoskeletal ultrasound in the target joints.
Baseline (Single assessment)
Presence of Tophi
Zeitfenster: Baseline (Single assessment)
The frequency of tophus formation, identified as hyperechoic aggregates, detected via musculoskeletal ultrasound in the target joints.
Baseline (Single assessment)
Frequency of Bone Erosions
Zeitfenster: Baseline (Single assessment)
The presence and frequency of bone erosions detected via musculoskeletal ultrasound in the target joints.
Baseline (Single assessment)
Frequency of Tenosynovitis
Zeitfenster: Baseline (Single assessment)
The presence and frequency of tenosynovitis detected via musculoskeletal ultrasound in the target joints.
Baseline (Single assessment)

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

1. Juli 2026

Primärer Abschluss (Geschätzt)

1. Juli 2027

Studienabschluss (Geschätzt)

1. August 2027

Studienanmeldedaten

Zuerst eingereicht

14. Juni 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

14. Juni 2026

Zuerst gepostet (Tatsächlich)

18. Juni 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

18. Juni 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

14. Juni 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

Klinische Studien zur Entzündliche Arthritis

Abonnieren