Unfortunately, the medical establishment is hostile to cryonics, and signing up as an organ donor may leave them with a claim to your body after you die, which increases the probability that your brain will be left to rot. It should be possible to both be cryopreserved and be an organ donor, but talk to your cryonics organization’s lawyers first before putting your name on any form that could affect how your body is handled. The relevant laws and procedures vary from place to place.
Unfortunately, the medical establishment is hostile to cryonics, and signing up as an organ donor may leave them with a claim to your body after you die, which increases the probability that your brain will be left to rot. It should be possible to both be cryopreserved and be an organ donor, but talk to your cryonics organization’s lawyers first before putting your name on any form that could affect how your body is handled. The relevant laws and procedures vary from place to place.