Briefly describe the advantages and disadvantages of X-ray photography and perspective.

Advantages and disadvantages are as follows:

1, the advantage of X-ray photography is that the image is clear, suitable for the observation of subtle lesions and thick parts, with permanent records; The disadvantage is that it is inconvenient to observe the motor function of active organs, the technology is complicated, the cost is high and the time to produce results is long.

2, the advantages of fluoroscopy, dynamic observation of the examinee, simple operation, low cost, immediate inspection results, and interventional surgery under the supervision of fluoroscopy; The disadvantage is that it is difficult to observe subtle lesions and thick parts in perspective, and it is impossible to leave permanent records.