Ultrasound learning curve in gout: a disease-oriented training program

Area of Science:

• Rheumatology
• Medical Education
• Diagnostic Imaging

Background:

• Gout diagnosis often relies on clinical presentation and laboratory tests.
• Ultrasound (US) is increasingly used to visualize monosodium urate (MSU) crystal deposits.
• Limited rheumatologist experience with US may hinder its widespread adoption for gout assessment.

Purpose of the Study:

• To evaluate the learning curve of rheumatologists with minimal prior ultrasound experience.
• To assess their proficiency in obtaining and interpreting US signs of MSU crystal deposits.
• To determine the effectiveness of a disease-oriented training program.

Main Methods:

• A 7-day intensive training program was conducted for three rheumatologists.
• Twelve male gout patients were included in the study.
• Ultrasound assessments covered multiple joints and tendons, evaluating for signs like synovial hypertrophy, double contour sign, and tophi.

Main Results:

• Inter-observer agreement between experts and beginners improved from poor/fair to moderate/excellent over four sessions.
• Beginners showed significant improvement in sensitivity, specificity, and overall capability by the end of the training.
• A total of 416 anatomical sites were analyzed.

Conclusions:

• A one-week intensive training program significantly enhances rheumatologists' ability to detect and interpret US signs of MSU crystal deposits.
• This training enables less experienced rheumatologists to satisfactorily utilize ultrasound for gout assessment.
• Ultrasound proficiency for MSU crystal detection can be rapidly acquired through targeted education.