Spleen imaging

The spleen is a reticuloendothelial organ with a purplish red color, soft and fragile texture, and a triangular pyramid. It has four physiological functions: destroying blood cells, storing blood, hemofiltration, and immune function. The examination of the spleen by spleen imaging, if it can provide accurate and valuable diagnostic information for the clinic, is of great significance for the development of reserved spleen surgery. Basic Information Specialist classification: Digestive examination classification: radionuclide Applicable gender: whether men and women apply fasting: fasting Tips: Pay attention to rest before check, eat properly or follow the doctor's advice to prevent fatigue. Normal value The range of visualization is a part of the spleen with clear images and good quality. The doctor is required to examine the blood flow, function, drainage, metabolism, and receptor information of the organ, tissue, or lesion. Clinical significance Abnormal results 1 spleen space-occupying lesions (spleen tumors, cysts, abscesses and hemangioma) and invasive lesions (such as lymphoma, etc.), can be expressed as local radioactive sparse or defective. 2 spleen imaging is the best way to show the spleen and spleen. When the congenital spleen is diagnosed, it needs to be differentiated from the functional spleen-free spleen or the spleen phagocytosis. 3 spleen imaging can accurately determine the location of the spleen, assist in spleen puncture and radiotherapy, and observe the ectopic spleen; by measuring the size of the spleen, the degree of splenomegaly can be measured and the treatment effect of related diseases can be monitored. 4 can be used for the diagnosis and curative effect observation of spleen rupture and splenic infarction. 5 spleen imaging is a reliable and simple method to monitor autologous spleen transplantation. People who need to be examined: Patients with spleen disease can be examined. Positive results may be diseases: spleen rupture, hemangioma, lymphoma precautions Contraindications before examination: Patients do not need special preparation. Requirements for inspection: should be at rest. Inspection process 1 The spleen is visualized by phagocytosis of radioactive colloidal particles by spleen reticuloendothelial cells, and the degree of concentration in the spleen is related to the size of the colloidal particles. 99TCm-sodium phytate particles are small, when the spleen function is normal, the radioactivity concentration in the spleen is less than 20% of the liver, the liver is obviously developed, the spleen is only slightly developed, and when the spleen function is hyperthyroidism, it is obviously developed, so it can generally be used as An indicator of whether the spleen function is hyperthyroidism or progression. The 99Tcm-sulfur colloidal particles have a diameter of 300-1000 nm. Under normal conditions, the spleen concentration can reach 50%-60% of the intrahepatic concentration, and the spleen is clearly developed, so it can be used as a common imaging agent for spleen imaging. 2 Using spleen reticuloendothelial cells to ingest and remove damaged red blood cells to develop the spleen. After intravenous injection of 99Tcm-heat-denatured red blood cells (99Tcm-DRBC), the spleen can phagocytose the labeled heat-denatured red blood cells in the blood to the sinusoids. Spleen imaging. Not suitable for the crowd Inappropriate crowd: None. Adverse reactions and risks Nothing.