Soyluoglu, SelinKorkmaz, UlkuOzdemir, BusraAltun, Gulay Durmus2024-06-122024-06-1220212146-14142147-1959https://doi.org/10.4274/mirt.galenos.2020.24392https://search.trdizin.gov.tr/yayin/detay/412979https://hdl.handle.net/20.500.14551/21300Objectives: Gastrointestinal bleeding (GIB) is a life-threatening problem that requires a multidisciplinary approach for successful treatment. This study aims to emphasize the clinical contribution of single photon emission computed tomography/computed tomography (SPECT/CT) for the diagnosis of acute bleeding. Methods: All 14 patients referred to the nuclear medicine department in 3 years with suspicion of acute GIB were evaluated retrospectively. Clinical records were analyzed to assess the scintigraphic findings, emphasizing the correlative contribution of the CT portion on SPECT/CT studies. Results: Five patients were negative on dynamic and static planar images. SPECT/CT was performed in 9 patients who had positive findings on planar imaging. SPECT/CT could identify the same bleeding site originating from the anastomosis in four patients with a history of abdominal surgery. SPECT/CT confirmed bleeding from the cecum in a patient with cervical cancer. SPECT/CT showed the bleeding focus in the bladder neck of a patient with bladder cancer and the bleeding from peritoneal metastases of a patient with gastric cancer. In 1 patient, the right upper quadrant activity accumulation, which may cause false positives, was found to be the gallbladder on SPECT/CT. Delayed images showed the true bleeding focus in the cecum. In 1 patient, suspicious activity accumulation in the midline of the abdomen was found to be due to a previously unknown aortic aneurysm on SPECT/CT. Conclusion: SPECT/CT imaging is a feasible technique to facilitate image interpretation in patients with GIB. SPECT/CT imaging can guide the surgeon through more accurate localization. Therefore, for proper patient management, SPECT/CT should be applied to detect the bleeding focus, if present, especially in patients who had undergone a previous operation.en10.4274/mirt.galenos.2020.24392info:eu-repo/semantics/openAccessGastrointestinal HemorrhageRed Blood Cell ScintigraphySingle Photon Emission Computed Tomography/Computed TomographyRed-Cell ScintigraphyAbdominal Aortic-AneurysmRare CauseGallbladder VisualizationHemorrhageLocalizationArticle301817N/AWOS:0006177657000022-s2.0-8510153216433586402Q3412979