Advanced

Quantifying coronary sinus flow and global LV perfusion at 3T

Markenroth Bloch, Karin LU ; Carlsson, Marcus LU ; Arheden, Håkan LU and Ståhlberg, Freddy LU (2009) In BMC Medical Imaging 9(9). p.1-24
Abstract
Abstract

Background:

Despite the large availability of 3T MR scanners and the potential of high field imaging, this technical platform has yet to prove its usefulness in the cardiac MR setting, where 1.5T remains the established standard. Global perfusion of the left ventricle, as well as the coronary flow reserve (CFR), can provide relevant diagnostic information, and MR measurements of these parameters may benefit from increased field strength. Quantitative

flow measurements in the coronary sinus (CS) provide one method to nvestigate these parameters. However, the ability of newly developed faster MR sequences to measure coronary flow during a breath-hold at 3T has not been evaluated.

... (More)
Abstract

Background:

Despite the large availability of 3T MR scanners and the potential of high field imaging, this technical platform has yet to prove its usefulness in the cardiac MR setting, where 1.5T remains the established standard. Global perfusion of the left ventricle, as well as the coronary flow reserve (CFR), can provide relevant diagnostic information, and MR measurements of these parameters may benefit from increased field strength. Quantitative

flow measurements in the coronary sinus (CS) provide one method to nvestigate these parameters. However, the ability of newly developed faster MR sequences to measure coronary flow during a breath-hold at 3T has not been evaluated.

Methods:

The aim of this work was to measure CS flow using segmented phase contrast MR (PC MR)on a clinical 3T MR scanner. Parallel imaging was employed to reduce the total acquisition time. Global LV perfusion was calculated by dividing CS flow with left ventricular (LV) mass. The repeatability of the method was investigated by measuring the flow three times in each of the twelve volunteers. Phantom experiments were performed to investigate potential error sources.

Results:

The average CS flow was determined to 88±33 ml/min and the deduced LV perfusion was 0.60±0.22 ml/min·g, in agreement with published values. The repeatability (1-error) of the three repeated measurements in each subject was on average 84%.

Conclusions:

This work demonstrates that the combination of high field strength (3T), parallel imaging and segmented gradient echo sequences allow for quantification of the CS flow and global perfusion within a breath-hold. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
MRI phase contrast 3T global perfusion left ventricle coronary sinus
in
BMC Medical Imaging
volume
9
issue
9
pages
1 - 24
publisher
BioMed Central
external identifiers
  • scopus:67650064510
ISSN
1471-2342
DOI
10.1186/1471-2342-9-9
language
English
LU publication?
yes
id
0fae1f0a-aa9b-4b6b-ba68-c94546c159a5 (old id 1429988)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/19519892
date added to LUP
2013-08-07 12:57:01
date last changed
2017-04-30 12:51:35
@article{0fae1f0a-aa9b-4b6b-ba68-c94546c159a5,
  abstract     = {Abstract<br/><br>
Background:<br/><br>
Despite the large availability of 3T MR scanners and the potential of high field imaging, this technical platform has yet to prove its usefulness in the cardiac MR setting, where 1.5T remains the established standard. Global perfusion of the left ventricle, as well as the coronary flow reserve (CFR), can provide relevant diagnostic information, and MR measurements of these parameters may benefit from increased field strength. Quantitative<br/><br>
flow measurements in the coronary sinus (CS) provide one method to nvestigate these parameters. However, the ability of newly developed faster MR sequences to measure coronary flow during a breath-hold at 3T has not been evaluated.<br/><br>
Methods:<br/><br>
The aim of this work was to measure CS flow using segmented phase contrast MR (PC MR)on a clinical 3T MR scanner. Parallel imaging was employed to reduce the total acquisition time. Global LV perfusion was calculated by dividing CS flow with left ventricular (LV) mass. The repeatability of the method was investigated by measuring the flow three times in each of the twelve volunteers. Phantom experiments were performed to investigate potential error sources.<br/><br>
Results:<br/><br>
The average CS flow was determined to 88±33 ml/min and the deduced LV perfusion was 0.60±0.22 ml/min·g, in agreement with published values. The repeatability (1-error) of the three repeated measurements in each subject was on average 84%.<br/><br>
Conclusions: <br/><br>
This work demonstrates that the combination of high field strength (3T), parallel imaging and segmented gradient echo sequences allow for quantification of the CS flow and global perfusion within a breath-hold.},
  author       = {Markenroth Bloch, Karin and Carlsson, Marcus and Arheden, Håkan and Ståhlberg, Freddy},
  issn         = {1471-2342},
  keyword      = {MRI phase contrast 3T global perfusion left ventricle coronary sinus},
  language     = {eng},
  number       = {9},
  pages        = {1--24},
  publisher    = {BioMed Central},
  series       = {BMC Medical Imaging},
  title        = {Quantifying coronary sinus flow and global LV perfusion at 3T},
  url          = {http://dx.doi.org/10.1186/1471-2342-9-9},
  volume       = {9},
  year         = {2009},
}