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KMID : 0385920070180010056
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Journal of the Korean Society of Emergency Medicine
2007 Volume.18 No. 1 p.56 ~ p.63
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Urinary Calculi Frequently Detected on Ultrasonography?
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Jo Young-Suk
Won Tae-Young
Yeon Jae-Ho
Kang Bo-Seung
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Abstract
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Purpose: Transabdominal sonography has been widely used in the diagnosis of suspected urinary calculi, assisted by secondary findings from urinary tract obstruction, but this method shows low specificity and relatively high incidence of false-positives. Recently, detection of stone itself with new Doppler finding and bladder distension on sonography has demonstrated high sensitivity.
Methods: We performed prospective transabdominal ultrasonography for emergency department patients with acute urinary colic pain over a 3 month period. With adequate bladder distension by intravenous hydration and initial spontaneous voiding drive, stones itself could be tracked along the entire length of urinary tract by emergency physician who received short-term education course.
Results: One hundred and thirty one patients enrolled; 86 received a sonographic exam and 57 showed urinary calculi. The detection rate of urinary calculi was 71.3%. The most common sonographic feature used in the diagnosis of urinary calculi was a distinct echogenic stone appearance within the dilated urinary tract with posterior acoustic shadowing.
Conclusion: We concluded that detection of urinary calculi by transabdominal ultrasonography could be very useful in combination with secondary sonographic finding from urinary tract obstruction in the evaluation of suspected urinary colic.
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KEYWORD
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Urinary Calculi, Ultrasonography
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