There are a lot of applications for this if it can be developed for humans, some of the more obvious ones are surgery prep and discovering internal bleeding. It could essentially give you the opportunity to do a biopsy without

https://www.science.org/doi/full/10.1126/science.adm6869

https://www.science.org/cms/10.1126/science.adm6869/asset/16de2ae5-74b6-4d4a-8792-b4fd7bcfbf2b/assets/images/large/science.adm6869-fa.jpg

In the paper they look at gut, muscle, and brain imagine without any surgeries performed.
https://www.science.org/cms/10.1126/science.adm6869/asset/63b1ee89-bc99-464d-ac99-08c95d336fd5/assets/images/large/science.adm6869-f1.jpg