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近年来影像医学进展很快,特别是CT、MRI、超声和PET-CT、PET-MRI等,其检测速度和空间分辨率等均较过去有了明显的进步。如目前应用多排螺旋CT进行覆盖胸、腹部的全身CT扫描,其扫描时间只需约10 s,且空间分辨率高,可清晰显示如肺内数毫米的结节。此外还可进行多种相关的功能成像,包括PET-CT、PET-MRI、MRI和能量、能谱CT等,对肿瘤的功能代谢及治疗后的疗效等进行评
In recent years, imaging medicine has developed rapidly, especially CT, MRI, ultrasound and PET-CT, PET-MRI, the detection speed and spatial resolution than the past have made significant progress. Such as the current multi-slice spiral CT covering chest, abdomen, body CT scan, the scan time is only about 10 s, and high spatial resolution, can clearly show the lungs, such as several millimeters of nodules. In addition, a variety of functional imaging can be performed, including PET-CT, PET-MRI, MRI and energy, energy spectrum CT, the functional metabolism of the tumor and the efficacy after treatment