Detection of gastrointestinal bleeding with 99mTc-labeled red blood cells
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Cited by (94)
ACR Appropriateness Criteria<sup>®</sup> Nonvariceal Upper Gastrointestinal Bleeding
2017, Journal of the American College of RadiologyCitation Excerpt :Reports of diagnostic efficacy are widely variable [63,116-118]. With respect to UGIB, errors in localization often occur when hemorrhage arises from a gastric or duodenal source [117,118]. Tc-99m-labeled RBC scans have high false-positive and high false-negative rates in patients with UGIB [63].
ACR appropriateness criteria<sup>®</sup> on upper gastrointestinal bleeding
2010, Journal of the American College of RadiologyCitation Excerpt :Technetium-99m–labeled erythrocyte scans are favored over 99mTc sulfur colloid scans for diagnosing GI bleeding because of the longer potential imaging interval and corresponding increased sensitivity in the detection and localization of bleeding [42,43]. Errors in localization are most likely to occur when hemorrhage arises from a gastric or duodenal source [44-46]. Moreover, most scintigraphic series included a substantial proportion of patients for whom upper endoscopy would be expected to identify the bleeding site, leaving only a small percentage of patients with UGIB for whom nuclear medicine studies would be of value [47-49].
Management of bleeding GI tumors
2010, Gastrointestinal EndoscopyCitation Excerpt :The treatment of choice in this setting is selective hepatic angiography with transarterial embolization.59 In many institutions, a radionuclide technetium 99m-tagged red blood cell scan is required before angiography because of the superior sensitivity of tagged red blood cell scans for the detection of bleeding.60 However, red blood cell scans lack the precision of angiography in localizing the bleeding source and, unlike angiography, offer no therapy.
Acute Gastrointestinal Hemorrhage
2009, Techniques in Vascular and Interventional RadiologyNovel noninvasive detection method for endometriosis: research and development of scintigraphic survey on endometrial implants in rats
2008, Fertility and SterilityCitation Excerpt :This unfavorable feature also could be explained by the restricted angiogenesis, which would have resulted in lack of significant implant accumulation of the tracer, as well as by the absence of microbleeding. The sensitivity of the technetium scan is reportedly 20%–95% (14, 15). The bleeding site can be identified accurately when intraluminal accumulation of 99mTc-RBC is observed during the dynamic phase of scanning.