Limits...
Clinical applications for cardiovascular magnetic resonance imaging at 3 tesla.

Hays AG, Schär M, Kelle S - Curr Cardiol Rev (2009)

Bottom Line: Clinical 3 Tesla (3 T) scanners are increasingly available and offer improved diagnostic capabilities compared to 1.5 T scanners for perfusion, viability, and coronary imaging.Although technical challenges remain for cardiac imaging at higher field strengths such as balanced steady state free precession (bSSFP) cine imaging, the majority of cardiac applications are feasible at 3 T with comparable or superior image quality to that of 1.5 T.This review will focus on the benefits and limitations of 3 T CMR for common clinical applications and examine areas in development for potential clinical use.

View Article: PubMed Central - PubMed

Affiliation: Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, Maryland, USA.

ABSTRACT
Cardiovascular magnetic resonance (CMR) imaging has evolved rapidly and is now accepted as a powerful diagnostic tool with significant clinical and research applications. Clinical 3 Tesla (3 T) scanners are increasingly available and offer improved diagnostic capabilities compared to 1.5 T scanners for perfusion, viability, and coronary imaging. Although technical challenges remain for cardiac imaging at higher field strengths such as balanced steady state free precession (bSSFP) cine imaging, the majority of cardiac applications are feasible at 3 T with comparable or superior image quality to that of 1.5 T. This review will focus on the benefits and limitations of 3 T CMR for common clinical applications and examine areas in development for potential clinical use.

No MeSH data available.


Related in: MedlinePlus

Late gadolinium enhancement images of a patient with chronic myocardial infarction of the septal ventricular wall, including the apex (white arrows). Images in basal short-axis view (A) and 4-chamber view (B) at 3 T acquired 15 minutes after injection of 0.15 mmol gadolinium/kg body weight.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2822147&req=5

Figure 3: Late gadolinium enhancement images of a patient with chronic myocardial infarction of the septal ventricular wall, including the apex (white arrows). Images in basal short-axis view (A) and 4-chamber view (B) at 3 T acquired 15 minutes after injection of 0.15 mmol gadolinium/kg body weight.

Mentions: There are several recent studies that examine potential benefits of 3 T imaging in LGE (Fig. 3). One advantage is the possibility of reducing the dose of contrast agent at 3 T [41]. In addition, the higher spatial resolution may help to better delineate infarct zones from peri-infarct regions, which may be a focus of ventricular arrythmias and has been reported to be a strong predictor of future cardiovascular events [42]. Recently, newer methods such as stimulated-echo acquisition mode (STEAM) MRI have been implemented at 3 T for black-blood LGE myocardial imaging [43]. This method demonstrates good agreement with standard inversion recovery LGE imaging and allows for improved determination of the blood-infarct border which may enhance the measurement of infarct size.


Clinical applications for cardiovascular magnetic resonance imaging at 3 tesla.

Hays AG, Schär M, Kelle S - Curr Cardiol Rev (2009)

Late gadolinium enhancement images of a patient with chronic myocardial infarction of the septal ventricular wall, including the apex (white arrows). Images in basal short-axis view (A) and 4-chamber view (B) at 3 T acquired 15 minutes after injection of 0.15 mmol gadolinium/kg body weight.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2822147&req=5

Figure 3: Late gadolinium enhancement images of a patient with chronic myocardial infarction of the septal ventricular wall, including the apex (white arrows). Images in basal short-axis view (A) and 4-chamber view (B) at 3 T acquired 15 minutes after injection of 0.15 mmol gadolinium/kg body weight.
Mentions: There are several recent studies that examine potential benefits of 3 T imaging in LGE (Fig. 3). One advantage is the possibility of reducing the dose of contrast agent at 3 T [41]. In addition, the higher spatial resolution may help to better delineate infarct zones from peri-infarct regions, which may be a focus of ventricular arrythmias and has been reported to be a strong predictor of future cardiovascular events [42]. Recently, newer methods such as stimulated-echo acquisition mode (STEAM) MRI have been implemented at 3 T for black-blood LGE myocardial imaging [43]. This method demonstrates good agreement with standard inversion recovery LGE imaging and allows for improved determination of the blood-infarct border which may enhance the measurement of infarct size.

Bottom Line: Clinical 3 Tesla (3 T) scanners are increasingly available and offer improved diagnostic capabilities compared to 1.5 T scanners for perfusion, viability, and coronary imaging.Although technical challenges remain for cardiac imaging at higher field strengths such as balanced steady state free precession (bSSFP) cine imaging, the majority of cardiac applications are feasible at 3 T with comparable or superior image quality to that of 1.5 T.This review will focus on the benefits and limitations of 3 T CMR for common clinical applications and examine areas in development for potential clinical use.

View Article: PubMed Central - PubMed

Affiliation: Department of Medicine, Division of Cardiology, Johns Hopkins University, Baltimore, Maryland, USA.

ABSTRACT
Cardiovascular magnetic resonance (CMR) imaging has evolved rapidly and is now accepted as a powerful diagnostic tool with significant clinical and research applications. Clinical 3 Tesla (3 T) scanners are increasingly available and offer improved diagnostic capabilities compared to 1.5 T scanners for perfusion, viability, and coronary imaging. Although technical challenges remain for cardiac imaging at higher field strengths such as balanced steady state free precession (bSSFP) cine imaging, the majority of cardiac applications are feasible at 3 T with comparable or superior image quality to that of 1.5 T. This review will focus on the benefits and limitations of 3 T CMR for common clinical applications and examine areas in development for potential clinical use.

No MeSH data available.


Related in: MedlinePlus