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Lower gastrointestinal bleeding (LGIB) is a common cause of emergency department visits and hospitalizations, with an annual incidence of 20.
Lower gastrointestinal bleeding (LGIB) is a common cause of emergency department visits and hospitalizations, with an annual incidence of 20.
Previously, 99mTc-labeled erythrocyte scintigraphy was commonly used for the detection of LGIB due to its high sensitivity
Recently, a study published in European Radiology evaluated the value of multiphase CTA including additional unenhanced and delayed phases in the assessment of LGIB, and determined whether the additional phase affects the sensitivity and specificity of LGIB detection, We also assessed whether there was agreement between the time of reading and the location of vascular extravasation and bleeding between observers
Using a randomized experimental block design, 3 blind radiologists trained in interventional radiology retrospectively interpreted 96 CTA exams completed between October 2012 and October 2017, using (1) only Arterial phase , (2) arterial phase / unenhanced , and (3) arterial phase / unenhanced /delayed phase were matched .
Using a randomized experimental block design, this study retrospectively interpreted 96 CTA examinations completed between October 2012 and October 2017 by 3 blinded radiologists with specialized training in interventional radiology, using (1) only Arterial phase , (2) arterial phase / unenhanced , and (3) arterial phase / unenhanced /delayed phase were matched .
Specificity increased with phase ( 72.
The results of this study suggest that the use of three-phase CTA can improve the diagnostic accuracy of LGIB
Original source:
Matthew E Pouw, Joseph W Albright, Meagan J Kozhimala, et al.
Matthew E Pouw, Joseph W Albright, Meagan J Kozhimala, et al.
Adding non-contrast and delayed phases increases the diagnostic performance of arterial CTA for suspected active lower gastrointestinal bleeding .
DOI: 10.
1007/s00330-022-08559-z Adding non- contrast and delayed phases increases the diagnostic performance of arterial CTA for suspected active lower gastrointestinal bleeding 10.
1007/s00330-022-08559-z
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