RT Book, Section
A1 Ruden, Emily A.
A1 Zareba, Karolina M.
A2 Baliga, R. R.
A2 Abraham, William T.
SR Print(0)
ID 1161017885
T1 Cardiac Magnetic Resonance Imaging
T2 Color Atlas and Synopsis of Heart Failure
YR 2018
FD 2018
PB McGraw-Hill Education
PP New York, NY
SN 9780071749381
LK accesscardiology.mhmedical.com/content.aspx?aid=1161017885
RD 2024/04/19
AB Cardiac  magnetic  resonance  (CMR)  imaging  has  become  a  powerful  diagnostic  tool  in  the  assessment  of  cardiomyopathy.  CMR  not  only  provides  a  comprehensive  evaluation  of  structure  and  function,  but  also  allows  for  tissue  characterization.  CMR  is  the  gold  standard  for  quantification  of  cardiac  volumes  and  function;  it  allows  3-dimensional  visualization  of  the  heart,  as  well  as  detailed  flow  evaluation  with  velocity  encoded  cine  imaging.  Tissue  characterization  has  become  the  most  exciting  aspect  of  CMR  in  the  field  of  heart  failure  (HF).  The  use  of  late  gadolinium  enhancement  (LGE)  allows  for  direct  visualization  of  focal  ischemic  and  nonischemic  scar.  Advances  in  T1  mapping  now  enable  quantification  of  diffuse  myocardial  fibrosis  by  measuring  the  extent  of  interstitial  expansion  via  extracellular  volume  (ECV)  fraction.  Further  tissue  characterization  is  performed  with  T2  mapping  allowing  for  visualization  of  myocardial  edema,  while  T2  star  mapping  directly  quantifies  myocardial  iron  content.  The  comprehensive  nature  of  CMR  not  only  yields  high-quality  diagnostic  data,  but  also  significant  prognostic  information,  especially  in  patients  with  HF.  This  chapter  will  highlight  the  critical  role  of  CMR  in  the  assessment  of  cardiomyopathies.