OBJECTIVE: To evaluate the use of the spectral Doppler (SDoppler) to quantify inflammatory activity and to detect nail echotextural differences in @entity1 with @entity5144 and @entity6313 . METHODS: Two @entity1 , one with @entity5144 but with no joint @entity158 nor nail clinical change and the other with @entity6313 and @entity309 were included. The gray scale ultrasound study, showed changes in the regular presence of echotexture at the nail insertion, thickening of the nail bed and loss of trilaminar nail pattern. The spectral Dopplerresistance index (RI), detects the inflammatory process in nail entheses. RESULTS: Seven @entity571 ( @entity571 ) joints in both @entity1 were evaluated in two planes, getting nine RI. In the @entity1 with @entity5144 the author found: loss of normal trilaminar nail plate aspect, and nail beds and @entity571 joint capsules preserved. The spectral Doppler showed RI<1, with mean  SD=0.50  0.75 in the microcirculation at nail entheses, with characterization of a @entity79 in the third left @entity571 joint, with RI=0.38 and 0.63 in transverse and longitudinal planes, respectively. The @entity1 with @entity6313 showed the following changes: hypoechogenicity at nail insertion; loss of nail shape, and spectral Doppler in nail entheses with RI>1, with mean  SD=1.71  0.98. CONCLUSION: The use of ultrasound can detect changes in the nail beds in these diseases. Future studies will further characterize these changes.

[Differences of spectral Doppler in XXXX and @entity6313 ].

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity571 :: ('MESH:D010003', 'Disease') :: ['DIP', 'distal interphalangeal'] @entity6313 :: ('MESH:D014009', 'Disease') :: ['onychomycosis'] @entity5144 :: ('MESH:D015535', 'Disease') :: ['psoriatic arthritis'] @entity79 :: ('MESH:D001847', 'Disease') :: ['bone erosion'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain'] @entity309 :: ('MESH:D001172', 'Disease') :: ['rheumatoid arthritis']
@entity5144 :: (MESH:D015535,Disease) :: ['psoriatic arthritis']
