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Ultrasound accuracy similar in community, hospital settings

21 days ago

The accuracy of ultrasound (US) for the detection of urinary calculi is similar between US carried out by hospital sonographers and by independent radiographers and general practitioners (GPs), according to a UK study.

Community US for the diagnosis of urinary calculi may be used more to encourage greater patient/GP satisfaction and to reduce hospital attendance without loss of diagnostic accuracy, researchers said.

All patients (n=2,464) referred to Kent and Canterbury Hospital urology multidisciplinary meeting for suspected urinary calculi were included in a 30-month, single-blind, retrospective cohort study that aimed to test whether there was a significant difference in accuracy between hospital and community-based US.

Included were those investigated with US and noncontrast computer tomography (NCCT, the gold standard) for their calculi. Concordance of US and NCCT was stratified by location: either the hospital or community setting (eg, the latter via GPs or independent radiographers). Researchers used Fisher’s exact test to identify any significant difference between the two patient groups.

Of the total number of patients referred, 257 had both US and NCCT in their diagnostic workup. Of these patients, 150 had their US carried out in hospital and 107 in community settings. There was no significant difference seen in the accuracy of US between the two groups for the detection of urinary calculi when compared with NCCT.

These findings contrasted the study by Chung and colleagues, which found a high discrepancy rate in US reports from the community when compared with US and CT scan reports from the hospital setting. The discordance between community and hospital US imaging studies may be due to the radiologist’s more active role in the hospital setting, according to the researchers. [Can Urol Assoc J 2007;1:251–254]

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Most Read Articles
Pearl Toh, 7 days ago
Mepolizumab added on to standard of care for patients with severe eosinophilic asthma better improves health-related quality of life (HRQOL), along with improved asthma symptoms and lung function compared with placebo, according to the MUSCA* study.
Pearl Toh, 6 days ago
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5 days ago
Blood pressure (BP) ≥140/90 mm Hg appears to increase the risk of maternal complications and adverse foetal outcomes, irrespective of the number of medications used, a study suggests. However, the greatest risk is observed among pregnant women taking multiple agents and whose BP levels are within the aforementioned range.
7 days ago
Relapse after randomization is more likely to occur in patients with severe baseline hallucinations, reports a new study. In addition, the presence of baseline hallucinations is associated with a greater risk of relapse after discontinuation of risperidone vs continued risperidone treatment.