Pain or tenderness is associated with increased vascularity of entheses. Power Doppler US examination of the entheses may be useful and complementary to the clinical evaluation, and further research is needed to assess its role in diagnosis and follow-up of disease course.

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In normal fetuses, the CSP and CM should be visible on transabdominal sonography between 16 and 38 weeks' menstrual age. Because abnormalities in these cranial structures may be indicative of central nervous system malformations, the availability of mean sonographic measurements from normal fetuses should be helpful in determining the need for additional testing in fetuses with abnormal measurements.

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Power Doppler examination of rheumatoid hand joints is a practical method to estimate synovial inflammation. A modification of current remission criteria by combining imaging techniques with clinical and laboratory examination may be conceivable. These results underscore the necessity of more sophisticated research, assessing the agreement between long-term Doppler changes and clinical parameters.

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