Computed tomography (CT) for short, multi-layer spiral CT is a scanning technology applied in the clinic this year, which is characterized by a conical X-ray beam, multiple rows of detectors, greatly improving the scanning speed, the scanning time for one week of rotation is only 0.5 seconds, while multiple layers of images can be obtained, because it is a fast volume scan, multi-layer spiral CT has become a clear clinical Because it is a fast volume scan, multi-layer spiral CT has become one of the most widely used and major examination methods. Our hospital has one GE 16-row spiral CT, which has the characteristics of multi-layer spiral CT with large range, rapid and high-resolution imaging, and is capable of rapid and large range fine scanning, reconstruction and enhancement scanning of all parts of the human body, realizing the detection of tiny lesions, providing rich diagnostic information for the clinic and meeting various diagnostic requirements. 1.To carry out the main examination items Scanning and reconstruction of various parts of the body, such as cranial, thoracic, abdominal, spine, limbs, etc., enhanced scanning of various parts of the body to improve the display rate of lesions, for the diagnosis and differential diagnosis of lesions, CT angiography (CTA, CTV), fast and safe examination, suitable for the diagnosis of vascular lesions, CT high resolution imaging (HRCT), which can improve the resolution of images to show fine structures, and its data can be used for post reconstruction of MPR, SSD, CPR, VR, etc., high resolution imaging of extremity joints (HRCT) and MPR, VR reconstruction. 2.Featured examination items High resolution imaging of temporal bone (HRCT), post reconstruction such as MPR, surface reconstruction (CPR) combined with magnetic resonance (MRI) water imaging, skull base thin layer scan and nerve multi-directional MPR reconstruction for preoperative evaluation of cochlear implant, cranial CT scan combined with cranial MRI thin layer multi-sequence imaging applied to preoperative localization of brain pacemaker (DBS), imaging diagnosis of children with cerebral palsy and Preoperative examination for FSPR surgery in cerebral palsy: including cranial MRI imaging, cranial CT scan, preoperative and postoperative DR examination of limb deformities, imaging diagnosis and evaluation of Parkinson’s disease. Stroke imaging diagnosis, evaluation: including cranial CT, cranial MRI imaging, MRA, MRV, SWI, DWI, and other multi-sequence imaging. Femoral head ischemic necrosis diagnosis, staging and preoperative assessment: hip CT scan, reconstruction to assess the extent, degree and acetabular condition of femoral head necrosis, and hip MRI imaging for early diagnosis of femoral head necrosis.