Planar imaging

Planar imaging, that is, two-dimensional imaging, is relative to a tomographic (three-dimensional) imaging, and only one surface can be observed at a time. Should include static plane, dynamic plane, local plane, motion plane and resting plane imaging, because it is not possible to perform one-time whole body fault, so the whole body imaging is called "body XX" such as "body bone imaging". "Full body bone plane imaging." Basic Information Specialist Category: Oncology Inspection Category: Radionuclide Applicable gender: whether men and women apply fasting: fasting Tips: Pregnant women, lactating women disabled 131I thyroid imaging. Normal value The probe of the gamma camera is placed at a certain position on the body surface, and the image obtained by collecting the radioactive distribution of the organ is an image superimposed on the probe in the projection direction of the organ. Clinical significance Abnormal results thyroid planar imaging is extrathyroid tissue, and the surgical pathology is thyroid adhesion thymoma. Combined with pro-tumor positive imaging, it can help to judge the benign and malignant nodules. People who need to be examined: patients with thyroid tumors. Positive results may be diseases: thyroid cancer, thymic cancer, thyroid hemangioma considerations Pre-examination contraindications: 131I thyroid imaging is prohibited in pregnant and lactating women. Requirements for examination: thyroid imaging was performed 20 to 30 minutes after intravenous injection of the tracer. Inspection process Na99mTcO4 (perperate): 20-minute planar static imaging after intravenous injection of 185 MBq (5 mCi). 131I: 1.85～3.7MBq (50～100μCi) on an empty stomach, static γ imaging after 24 hours, high energy and high resolution type of collimator, 360KeV±20% peak, and >185MBq (5mCi) for whole body metastases. Check after 48 to 72 hours. Not suitable for the crowd Inappropriate people: long-term use of thyroid hormone, iodine preparations or the use of iodine-containing X-ray contrast agents can affect the intake of 131I by the thyroid gland. Adverse reactions and risks Nothing.

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