Gastrointestinal > RBC imaging

GI Red Blood Cell Imaging

RBC Labeling Techniques:

• In-vivo
• In-vitro
• Modified in vivo: "In vivtro" method

Causes of Poor RBC Labeling

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GI Bleeding Scintigraphy

Etiologies of GI bleeding

Nuclear Medicine GI Bleeding Examination

Tc-99m Sulfur Colloid

Technetium labeled RBC's

Potential False Positives

Interventional Therapeutic Techniques for GI bleeding

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Scintigraphy of Vascular Hepatic Lesions

Cavernous Hepatic Hemangioma

Scintigraphic findings:

Cavernous hemangioma

Hemangioendothelioma

Hepatoblastoma