Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Spearman correlation plots for the comparisons of stenosis measurements between PETRA-MRA/TOF-MRA and reference standard DSA. For pre-intervention evaluation, there was a better correlation in measuring stenosis between PETRA-MRA (r = 0.96, CV = 4.6%) and DSA than between 3D-TOF-MRA (r = 0.85, CV = 11.0%) and DSA; For post-intervention evaluation, PETRA-MRA had an excellent agreement with DSA (r = 0.90, CV = 5.4%), while 3D-TOF-MRA had a poor agreement with DSA (r = 0.26, CV = 20.9%).
