Radiology
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Randomized Controlled Trial Clinical Trial
Acute appendicitis: influence of early pain relief on the accuracy of clinical and US findings in the decision to operate--a randomized trial.
To determine the influence of early pain relief on the diagnostic performance of ultrasonography (US) and on the appropriateness of the surgical decision. ⋯ Morphine does not improve US-based diagnosis of appendicitis.
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Comparative Study
MR imaging of human brain at 3.0 T: preliminary report on transverse relaxation rates and relation to estimated iron content.
To determine the transverse relaxation rates R2 and R2' from several gray matter regions and from frontal cortical white matter in healthy human brains in vivo and to determine the relationship between relaxation rates and iron concentration [Fe]. ⋯ The small iron-independent component R2', as compared with that of R2, is consistent with the hypothesis that R2' has higher iron-related specificity.
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To demonstrate that magnetic resonance (MR) imaging allows evaluation of injuries of the pectoralis major muscle. ⋯ MR imaging allows accurate evaluation of injuries of the pectoralis major muscle and enables identification of patients who would benefit from surgical repair.
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The authors assessed the feasibility of placing peripherally inserted central venous catheters via scalp veins in infants and newborns. In 60 newborns and infants, aged 3 days to 10 months, placement of 62 2-F peripherally inserted central venous catheters was attempted with scalpvein access. The tip location was central in 30 of the 62 catheters (48%) and long peripheral intravenous in 17 (27%); access failed in 15 (24%). Scalp-vein access for peripherally inserted central venous catheters offers a safe and effective alternative route for gaining central venous access in infants and newborns.