Colorectal bleeding localized with gamma camera.


Localization of colorectal bleeding using a gamma camera was attempted in a prospective study of 24 patients after in-vivo labelling of their erythrocytes with 99mTc-pertechnetate. In 7 of 8 patients with bright-red rectal bleeding a correct localization was given by scintiphotos, thus helping the surgeon to plan the operative procedure. Of 11 patients with recently acute colorectal bleeding but no signs of actual haemorrhage, 8 had no scintigraphic bleeding. Five investigations had to be excluded due to technical errors. The scintigraphic classification was correct in a significant number of patients (p less than 0.02). It is concluded that bleeding can be identified in colorectum at brisk-haemorrhagic stools and be correctly localized to the right or left side of the colon. This non-invasive scintigraphic procedure should therefore be undertaken before an abdominal 2-3 vessel arteriography is performed.

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@article{Olsen1983ColorectalBL, title={Colorectal bleeding localized with gamma camera.}, author={P Rosenkilde Olsen and L. Nielsen and M. O. Dyrbye and L Kuld Hansen}, journal={Acta chirurgica Scandinavica}, year={1983}, volume={149 8}, pages={793-5} }