Evaluation of intracardiac thrombus with computed tomography

Area of Science:

• Cardiology
• Medical Imaging
• Diagnostic Techniques

Background:

• Intracardiac thrombus formation is a significant concern in patients with mitral valve disease and myocardial infarction.
• Accurate detection of left atrial (LA) and left ventricular (LV) thrombus is crucial for risk stratification and treatment planning.

Purpose of the Study:

• To evaluate the accuracy of computed tomography (CT) in detecting left atrial and left ventricular thrombus.
• To compare the sensitivity and specificity of CT with other diagnostic modalities for intracardiac thrombus detection.

Main Methods:

• A study involving 56 patients, divided into those with mitral valve disease (Group I) and myocardial infarction (Group II).
• Diagnostic imaging included computed tomography, 2-dimensional echocardiography, and cineangiocardiography.
• Surgical or autopsy confirmation was available for a subset of patients.

Main Results:

• Computed tomography demonstrated 100% sensitivity and 91% specificity for detecting LA thrombus, outperforming echocardiography and angiocardiography.
• CT excelled in visualizing thrombi in the LA appendage, which are difficult to detect with other methods.
• CT showed high accuracy for LV thrombus detection, though definitive sensitivity and specificity could not be ascertained in all cases.

Conclusions:

• Computed tomography is a highly accurate and advantageous imaging modality for detecting intracardiac thrombi, including those in difficult-to-visualize locations.
• CT's ability to provide uniform cardiac slices aids in identifying thrombi in various cardiac chambers.
• The findings support CT as a valuable tool for the diagnosis of intracardiac thrombus.