Spiral CT

Spiral CT breaks through the design of traditional CT. It uses slip ring technology to lead the X-ray tube and detector sliding brush and metal ring connecting the power cable and some signal wires to different metal rings in the fixed frame. The bulb and the detector are not limited by the length of the cable, and rotate continuously and continuously along the long axis of the human body. The scanning bed is synchronously moved at a constant speed (the conventional CT scanning bed is stationary during scanning), and the scanning trajectory is spirally advanced, which can be quickly and uninterrupted. Complete the volume scan. Basic Information Specialist Category: Inspection Category: CT Applicable gender: whether men and women apply fasting: not fasting Tips: Remove metal objects from the part being inspected. Such as hairpins, keys, coins and buttons containing metallic substances. Normal value There was no abnormality in the angiography. Clinical significance Abnormal results can be used to determine the size, shape, number, and extent of invasion of space-occupying lesions such as tumors, cysts, enlarged lymph nodes, hematomas, abscesses, and granuloma. It can determine the staging and ability of certain organ cancers. Surgical removal. In some cases, the pathological characteristics of the lesion can be distinguished as solid, cystic, vascular, inflammatory, calcium, fat, and the like. The population to be examined has patients with space-occupying lesions such as tumors, cysts, enlarged lymph nodes, hematomas, abscesses and granulomas. Precautions Before the examination: abdominal, pelvic and enhanced scanning examination, fasting 6 hours before the scan, check the morning fasting. Remove metal objects from the part to be inspected. Such as hairpins, keys, coins and buttons containing metal substances to prevent the occurrence of counterfeit shadows. For patients who do not affect cooperation, such as infants and young children coma, sedatives must be given in advance. After the inspection: it can be completed in ten minutes, basically no discomfort. Inspection process 1. Do a good job of preparing the patient: Prepare the patient according to the requirements of different parts. Iodine allergy tests must be performed on patients who need to be augmented. Explain to the patient: Eliminate fear and make the patient cooperate with the examination. 2, the choice of scanning conditions: including body position, layer thickness and layer spacing, scanning parameters and scanning methods. Not suitable for the crowd Unsuitable people: iodine allergies, severe liver and kidney dysfunction, severe thyroid patients, acute pancreatitis, acute thrombophlebitis, multiple myeloma and other heterogeneous proteinemia, severe cachexia. Use with caution in patients with high risk factors, such as poor renal function, diabetes, asthma, urticaria, eczema, other allergic diseases, heart disease, other drug allergies, children under 1 year old and elderly over 60 years old.

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