電腦斷層掃描
256 Slice Computed Tomography
電腦掃描是一種X光造影技術,可以計算人體組織對X光吸收程度,
之後把身體每個器官及部份構成三維圖像。
CT combines X-Ray with advanced computer analysis.
It provides three dimensional images of organs.
Use of latest generation Gemstone Clarity Detector and Gemstone Spectral Imaging (GSI) technique, this CT machine achieves Best-in-class 0.23mm spatial resolution and industry’s fastest scintillating primary speed, reducing electric noise by 25% and scatter by 50%, leading to more precise analysis of structures and lesions and better detection of bleeding and neovascularization.
It is also equipped with the latest SnapShot FREEZE(Single-cycle reconstruction) , allowing motion correction using data within a single cardiac cycle, leading to superior quality in cardiovascular imaging compared with other brands.
過程:
1. 病人將會躺在掃描床上,過程中掃描床會慢慢移向掃描機器
2. 在檢查期間,病人不可移動,否則影像會模糊不清
3. 病人可能需要聽從指示控制呼吸
Procedure:
1. You will be lying down on the scanning bed. The bed will then move into the machine slowly.
2. Try to keep still during the exam to ensure the best quality.
3. You may be asked to follow the breath-holding instruction.
檢查前注意事項 (需要注射顯影劑) :
Preparation before CT with contrast: