Dilated cardiomyopathy CT: Difference between revisions
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== CT scan == | == CT scan == | ||
Cardiac CT scanning with angiography (CTA) can be used in the workup of undifferentiated heart failure. Biventricular volume and ejection fraction can be calculated with good correlation to echocardiography. With cine-loop formatting, regional wall motion can be assessed, with the highest accuracy for wall motion subtended by the left anterior descending and left circumflex arteries. | |||
In the assessment of ischemic cardiomyopathy, an Agatston coronary calcium score (CAC) of 0 has 100% specificity in excluding high-risk coronary artery disease (ie, the left main coronary artery, or stenosis of at least 2 major epicardial vessels). Cardiac CTA has a 98% diagnostic sensitivity and 97% specificity for excluding ischemic cardiomyopathy. | |||
Myocardial perfusion analysis of the coronary arteries is also feasible; however, it has yet to mature to the level of diagnostic accuracy of cardiac MRI. | |||
Finally, anatomic features specific to an inciting disease can be differentiated on CTA, such as infiltrative diseases (heterogeneous attenuation of myocardium), the location of hypertrophic cardiomyopathy, left ventricular noncompaction, arrhythmogenic right ventricular dysplasia, and congenital malformations. | |||
==References== | ==References== | ||
Revision as of 17:05, 12 December 2019
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Dilated cardiomyopathy Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Dilated cardiomyopathy CT On the Web |
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American Roentgen Ray Society Images of Dilated cardiomyopathy CT |
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Risk calculators and risk factors for Dilated cardiomyopathy CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Abdelrahman Ibrahim Abushouk, MD[2]
Overview
[Location] CT scan may be helpful in the diagnosis of [disease name]. Findings on CT scan suggestive of/diagnostic of [disease name] include [finding 1], [finding 2], and [finding 3].
CT scan
Cardiac CT scanning with angiography (CTA) can be used in the workup of undifferentiated heart failure. Biventricular volume and ejection fraction can be calculated with good correlation to echocardiography. With cine-loop formatting, regional wall motion can be assessed, with the highest accuracy for wall motion subtended by the left anterior descending and left circumflex arteries.
In the assessment of ischemic cardiomyopathy, an Agatston coronary calcium score (CAC) of 0 has 100% specificity in excluding high-risk coronary artery disease (ie, the left main coronary artery, or stenosis of at least 2 major epicardial vessels). Cardiac CTA has a 98% diagnostic sensitivity and 97% specificity for excluding ischemic cardiomyopathy.
Myocardial perfusion analysis of the coronary arteries is also feasible; however, it has yet to mature to the level of diagnostic accuracy of cardiac MRI.
Finally, anatomic features specific to an inciting disease can be differentiated on CTA, such as infiltrative diseases (heterogeneous attenuation of myocardium), the location of hypertrophic cardiomyopathy, left ventricular noncompaction, arrhythmogenic right ventricular dysplasia, and congenital malformations.