Rheumatoid knee: role of gadopentetate-enhanced MR imaging
Autor: | C Fix, Michael H. Weisman, N J Zvaifler, T.J. Riccio, Donald Resnick, Melinda E. Sanders, S Kursunoglu-Brahme |
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Rok vydání: | 1990 |
Předmět: |
Adult
Gadolinium DTPA Male musculoskeletal diseases medicine.medical_specialty Knee Joint Contrast Media Gadolinium Physical examination Arthritis Rheumatoid Diagnosis Differential Organometallic Compounds medicine Humans Radiology Nuclear Medicine and imaging skin and connective tissue diseases medicine.diagnostic_test business.industry Magnetic resonance imaging Pentetic Acid Joint effusion medicine.disease Magnetic Resonance Imaging Mr imaging Effusion Rheumatoid arthritis Female Radiology Signal intensity medicine.symptom business |
Zdroj: | Radiology. 176:831-835 |
ISSN: | 1527-1315 0033-8419 |
Popis: | Physical examination is often insufficient in distinguishing between joint effusion and inflamed synovium in the knee joints of patients with rheumatoid arthritis. The authors prospectively evaluated the role of intravenously administered gadopentetate dimeglumine in distinguishing between these two conditions. Fourteen patients with classic rheumatoid arthritis were examined first by a rheumatologist and then by means of magnetic resonance (MR) imaging with T1- and T2-weighted sequences. T1-weighted images were also obtained following the intravenous administration of gadopentetate dimeglumine. T1-weighted images obtained prior to contrast material administration demonstrated an identical low-intensity signal from both effusion and inflamed synovium, and T2-weighted images demonstrated increased signal intensity in both cases. Intravenous administration of gadopentetate dimeglumine allowed distinction between effusion and abnormal synovium, with the effusion remaining of low signal intensity and the synovium demonstrating enhancement and increased signal intensity. The authors conclude that the use of gadopentetate allows distinction between synovial thickening and joint effusion in the knee, which may affect treatment decisions. |
Databáze: | OpenAIRE |
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