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Quantitative Imaging in Inflammatory Arthritis: Between Tradition and Innovation
Chiara Giraudo1, Franz Kainberger2, Mikael Boesen3
1Department of Medicine, DIMED, Radiology Institute, University of Padova, Padova, Italy.
Seminars in Musculoskeletal Radiology
|September 29, 2020
Summary
Quantitative imaging techniques are vital for diagnosing and monitoring rheumatic diseases, aiding precision medicine. Advanced methods like ultrasound, CT, MRI, and PET/CT offer detailed insights into disease progression and inflammation.
Area of Science:
- Rheumatology
- Radiology
- Medical Imaging
- Precision Medicine
Background:
- Radiologic imaging is essential for diagnosing and monitoring rheumatic inflammatory diseases.
- Precision medicine drives the need for quantitative imaging in rheumatology.
- Current imaging modalities provide valuable data on disease characteristics.
Purpose of the Study:
- To review the role and advancements of quantitative imaging in rheumatic diseases.
- To highlight how various imaging techniques contribute to disease assessment.
- To discuss the impact of emerging technologies on quantitative imaging.
Main Methods:
- Ultrasound for direct signs (erosions, synovial thickness).
- Dual-energy X-ray absorptiometry and high-resolution peripheral quantitative CT for secondary signs (osteoporosis, lean mass loss).
- Magnetic resonance imaging (MRI) techniques (dynamic contrast-enhanced, diffusion-weighted, T1ρ, T2 mapping) for detailed joint evaluation.
- Hybrid imaging (PET/CT, PET/MRI) for metabolic activity assessment.
- Artificial intelligence (AI) for lesion segmentation and pattern recognition.
Main Results:
- Ultrasound quantifies bone erosions and synovial thickness.
- CT-based methods assess osteoporosis and lean mass.
- MRI evaluates synovium perfusion and cartilage injury.
- PET/CT and PET/MRI measure inflammatory metabolic activity.
- AI shows promise in analyzing imaging data for disease assessment.
Conclusions:
- Quantitative imaging is integral to the diagnosis and management of rheumatic inflammatory diseases.
- Diverse imaging modalities offer complementary information for comprehensive patient assessment.
- Advancements in AI are enhancing the capabilities of quantitative imaging in rheumatology.
