目前更为简单廉价的技术，通过给动物注射可以扩散进入血液系统的荧光染剂，实现内部器官成像。
A cheaper and simpler technique involves injecting the animals with fluorescent dyes that are diffused into the blood stream and channeled to the internal organs.
血肿是通过在动物背部皮内注射自体血液造成的。
The haematomas were produced by intracutaneous injection of autologous blood on the back of the animals.
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