Liver parenchyma imaging

Liver parenchymal imaging of radioactive colloidal particles injected intravenously, about 90% of the particles are engulfed by liver mononuclear phagocytic cells, and the liver parenchyma is developed. Intravenous injection of 99mTc-physic acid or 99mTc-sulfur colloid 148 ~ 296MBq (4 ~ 8mCi), 10 ~ 15min after liver tomography with SPECT. Note the amount of the imaging agent to be injected, and the tomographic imaging can be performed 10 to 15 minutes after the injection. Basic Information Specialist classification: Digestive examination classification: CT Applicable gender: whether men and women apply fasting: not fasting Tips: Follow the doctor's arrangements. Normal value There was no abnormality in liver parenchymal imaging. Clinical significance Abnormal results Most of the liver parenchymal imaging showed a single radioactive distribution sparse or defective area, which is hepatic hemangioma. Need to check the diagnosis of patients with hepatic hemangioma. Precautions Contraindications before inspection: Prepare the imaging agent at a pH of 5.5-6.8. 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 Intravenous injection of 99mTc-physic acid or 99mTc-sulfur colloid 148 ~ 296MBq (4 ~ 8mCi), 10 ~ 15min after liver tomography with SPECT. Not suitable for the crowd Unsuitable for people: people who are sensitive to radioactive elements.