The best replacement for cta is mra.

The best alternatives to cta are rated as following:
★★★★★  mra
★★★  ct
★★  cpo
★★  angiogram
★★  metra
★  hedge fund
★  ct with contrast
★  dsa
★  mta
★  angiography
★  cardiac cath
★  aca
  tfc
  spiral ct
  impd
  carotid ultrasound
  hoto
  cerebral angiogram
  rta
  coronary angiography
  acca
  ct scan
  ct chest

Your alternative for cta is not listed? Suggest!
Speaking about cta, one probably shouldn't forget about calcium score.

Other search terms related to cta and their ratings are:
★★★★★ calcium score
★★ calcium scoring
You have in mind a companion for cta and it is not yet here? Propose!



Google Trends

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cta
mra
ct