Every time I hear Time-of-Flight TOF, I get confused because it can actually mean TOF PET or TOF MRA. The two acronyms have the some words: Time Of Flight, but have different meanings.
TOF PET - This PET technology means that the time difference between two photons detected as a coincidence will be used to estimate the actual place of positron annihilation.
TOF MRA - This Magnetic Resonance angiography technique means that a sequence with small time of repetition TR will be used to saturate the stationary nucleus, while the flowing nucleus with Time-Of-Flight will be maximal.
Both techniques produce beautiful images:
![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_sFcawZw9zcaoZMyA7X5ZQgNqH0j_VhRyVisKZQUDM5RlfrC9k-z7VfluTuMaQXKsSDwiUbSgXj2zhYMH6NwFtU_-aIQS912NH3eQ2l8UL22jDOD90xVkKg_oLd9cIFI7uuUqGNLYPfag52uZ1i4ylifUiaFoYfgsDq=s0-d)
![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tJBhjW2BxmGOYQIrQmma1RJ9pGZ__EfT0ZUTB7urkMZgypKI-eRaoMDmsWbbad3_WvqgKLCna_i_V0mjW_J52xHOL_tlEb8WaVTeNjyq7yR9gYzmMlGjcqpxLR7BPxlV4mQNC7sHu9tTNFnR7fNne-5JsDi5Tud517Nyf6rxi-VZwE3xe-5QnMWsg4deD3IpIuGkgxlPxZe8-nxmLTflpeOvxQuovBSA=s0-d)
More information on TOF-PET:
http://miil.stanford.edu/research/tofdetector.html
More information on TOF-MRA:
http://www.imaios.com/en/e-Courses/e-MRI/MR-Angiography-Flow-imaging/time-of-flight-mra
TOF PET - This PET technology means that the time difference between two photons detected as a coincidence will be used to estimate the actual place of positron annihilation.
TOF MRA - This Magnetic Resonance angiography technique means that a sequence with small time of repetition TR will be used to saturate the stationary nucleus, while the flowing nucleus with Time-Of-Flight will be maximal.
Both techniques produce beautiful images:
More information on TOF-PET:
http://miil.stanford.edu/research/tofdetector.html
More information on TOF-MRA:
http://www.imaios.com/en/e-Courses/e-MRI/MR-Angiography-Flow-imaging/time-of-flight-mra
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