J Korean Radiol Soc.  2002 Dec;47(6):607-613. 10.3348/jkrs.2002.47.6.607.

Left Atrial Wall Calcification after Mitral Valve Replacement: CT Findings and Clinical Significance

• So YH
• Goo JM
• Kim KH
• Im JG

• KMID: 2103679
• DOI: http://doi.org/10.3348/jkrs.2002.47.6.607

Abstract

PURPOSE
To evaluate the CT findings and clinical significance of left atrial wall calcification in patients who had undergone mitral valve replacement.
MATERIALS AND METHODS
The unenhanced chest CT scans of 36 consecutive patients who had undergone mitral valve replacement were retrospectively reviewed, and left atrial calcification was found in 15. To determine the clinical significance of this, the CT findings were assessed in terms of the diameter of the left main pulmonary artery, the interval between previous surgery and scanning, and pulmonary arterial pressure.
RESULTS
Left atrial wall calcification was either focal (linear, n=7; nodular, n=5), or diffuse (involving at least one-fourth of the left atrial wall) (n=3), and associated left atrial thrombus was found in two patients. Systolic pulmonary arterial pressure was significantly higher in those with calcification than those without (p<0.05), though between these groups there was no significant difference in the diameter of the left main pulmonary artery or the time interval between previous surgery and CT scanning.
CONCLUSION
Left atrial wall calcification is a common finding in patients who have undergone mitral valve replacement, particularly in those with high pulmonary arterial pressure.

Keyword

Heart, CT; Heart, prostheses; Heart, calcification; Heart, surgery

MeSH Terms

Arterial Pressure
Humans
Mitral Valve*
Pulmonary Artery
Retrospective Studies
Thrombosis
Tomography, X-Ray Computed