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  • 1
    ISSN: 1432-1084
    Keywords: Radiation dose ; Paediatric radiology ; X-ray equipment ; Intestinal biopsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In paediatric radiology intestinal biopsies for the diagnosis of coeliac disease are performed using fluoroscopy. The radiation exposure to the child depends on the X-ray equipment. We report patient measurements from three different equipments (A, B and C) together with a phantom study simulating children of different thickness relative to age. The median values of the mean absorbed dose to the child in the irradiated volume were 1.2 mGy (A), 0.79 mGy (B) and 0.15 mGy (C). The results show that the increase in tube potential with increasing distance in one equipment decreases the dosage, and also that modern equipment should be employed. Particularly old image intensifiers should not be used. With an optimal choice of equipment the dosage to the child can be reduced fourfold. The combination of an optimal technique of sedation and an experienced operator can reduce the dosage tenfold.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Rheumatology international 10 (1990), S. 135-142 
    ISSN: 1437-160X
    Keywords: Early RA ; HAQ ; SOFI ; Radiology ; Anxiety ; Depression ; Outcome ; Prognosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Eighty-nine patients, 33 men and 56 women, with early definite rheumatoid arthritis were followed for 2 years. Two-thirds were seropositive. About 1/3 were eventually treated with second line drugs. The disease mostly had an insidious onset initially involving the finger joints. Early remission occurred in 16%. Patient relevant measures such as pain, patient's overall assessment of disease activity and anxiety decreased significantly. Disability evaluated by the HAQ disability index remained at a low level. The joint damage score (JDS) in hands and feet increased steadily and only 18% were nonerosive after 2 years. One-third developed hand deformities which was associated with higher JDS. A joint function index (SOFI) correlated significantly with JDS. Twenty-eight percent had a slower rate of joint damage progression the second year. There was no significant correlation between JDS and disease duration. Six patients developed rapidly progressive damage in larger joints, five in the hip joints and one in the shoulder joint, all requiring joint replacement. The ability to predict outcomes with clinical and laboratory variable obtained at entry was of limited clinical usefulness. By applying discriminant analyses 67%–80% of the cases who fared worst regarding clinical, functional, and radiological features could be correctly classified.
    Type of Medium: Electronic Resource
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