Practical tips and tricks for assessing prosthetic valves and detecting paravalvular regurgitation using cardiac CT.
J Cardiovasc Comput Tomogr
; 8(4): 323-7, 2014.
Article
in En
| MEDLINE
| ID: mdl-25151924
ABSTRACT
Paravalvular leaks are an uncommon but serious complication of prosthetic valves. Transthoracic echocardiography is used in the assessment of prosthetic valves but can be limited by acoustic shadowing from the prosthesis and poor acoustic windowing. Small case series have previously shown cardiac CT to have promising results in detecting paravalvular leaks. We assessed 32 valves in our institution on cardiac CT using echocardiography results as standard and developed methods for improved evaluation of prosthetic valves. These include optimizing prescan drug therapy for heart rate control, optimum window and center adjustments, and carefully selected image planes to best demonstrate the valve ring and valve annulus. Recognition of surgical material is also important to recognize. In this review, we provide a detailed description of these techniques with imaging examples of prosthetic valve evaluation using cardiac CT.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Aortic Valve
/
Aortic Valve Insufficiency
/
Heart Valve Prosthesis
/
Heart Valve Prosthesis Implantation
/
Multidetector Computed Tomography
/
Mitral Valve
/
Mitral Valve Insufficiency
Type of study:
Etiology_studies
Limits:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
J Cardiovasc Comput Tomogr
Journal subject:
ANGIOLOGIA
/
CARDIOLOGIA
/
RADIOLOGIA
Year:
2014
Document type:
Article
Affiliation country:
Ireland