呼吸运动伪影的校正及其与肺部SUV的关系

The relation between respiratory motion artifact correction and lung standardized uptake value

PET／CT在疾病诊断和疗效评价上起着重要作用，但是呼吸运动伪影给病变的诊断及治疗带来困扰，临床有多种方法可以用来对呼吸运动伪影进行校正，其中应用最广泛的是呼吸门控技术。其对呼吸运动伪影校正后可以明显提高肺部病变的最大标准化摄取值，从而提高图像质量及诊断的准确性。

PET/CT is playing an important role in disease diagnosis and therapeutic evaluation. But the respiratory motion artifact may bring trouble in diagnosis and therapy. There are many methods to correct the respiratory motion artifact. Respiratory gated PET/CT is applied most extensively of them. Using respiratory gated PET/CT to correct respiratory motion artifact ean inerease the maximum standardized uptake value of lung lesion obviously, thereby improving the quality of image and accuracy of diagnosis.