Liver imaging

Liver imaging is a feature in which hepatic stellate cells can be swallowed by radioactive colloids. The colloidal 99m锝 or colloidal 113m锢 is used as a tracer. After being injected into the patient by intravenous injection, the liver is concentrated in the liver by means of a scintillation scanner or camera. Radioactive distribution image inside. The liver is thus visualized to observe the size, location, morphology, function, and radioactivity distribution of the liver. The patient was fasted for 4 to 6 hours, and after intravenous injection of 99mTc-EHIDA 185-370MBq (5-10 mCi), the tumor was collected at a speed of /2 to 5 min for 60 min, and liver imaging was performed by SPECT. Basic Information Specialist classification: Digestive examination classification: CT Applicable gender: whether men and women apply fasting: fasting Tips: The patient is fasted for 4-6 hours before the examination. Normal value The normal liver displays images. In the supine position, the liver shadow is approximately cone-shaped on the side, the edges are neat, the heart is in the left upper edge, the hepatic incision is visible on the lower edge, the radioactivity in the liver area is evenly distributed, and the radioactivity in the right lobe is higher than that in the left lobe. Clinical significance Abnormal results: 1. Most of the liver parenchymal imaging appears as a single radioactive distribution sparse or defective area, which is hepatic hemangioma. 2. The presence of radioactive defects in the liver imaging indicates that the liver has space-occupying lesions, such as liver cancer and liver abscess. 3. The perfusion of hepatic blood perfusion phase is normal or slightly decreased, and the local radioactivity of liver blood pool imaging lesions after 30-60 minutes delay is a typical manifestation of hepatic hemangioma. Need to check patients with hepatic hemangioma, liver cancer and other patients. Precautions Taboo before inspection: 1. Prepare the imaging agent and the pH is in accordance with 5.5-6.8. 2. The patient was fasted for 4-6 hours before the examination. Taboo when checking: 1. Pay attention to the amount of injection imaging agent, and perform tomographic imaging after 10 to 15 minutes of injection. 2. Correct anatomical markings, including touching the lower edge of the liver or mass, are important for overcoming the diagnosis of pseudo-defects caused by liver deformation or cirrhosis. Inspection process The patient was fasted for 4 to 6 hours, and after intravenous injection of 99mTc-EHIDA 185-370MBq (5-10 mCi), the tumor was collected at a speed of /2 to 5 min for 60 min, and liver imaging was performed by SPECT. Not suitable for the crowd Unsuitable for people: people who are sensitive to radioactive elements.