The Relationship Between Cardiothoracic Ratio and Left Ventricular Ejection Fraction in Congestive Heart Failure

Philbin, Edward F.; Garg, Rekha; Danisa, Kola; Denny, D. Marty; Gosselin, Gilbert; Hassapoyannes, Constantine A.; Horney, Anne; Johnstone, David E.; Lang, Roberto M.; Ramanathan, Kodangudi B.; Safford, Robert E.; Sarma, Radha J.; Weiss, Robert G.; Williford, William O.; Fleg, Jerome L.

doi:10.1001/archinte.158.5.501

Cited by 50 publications

(37 citation statements)

References 27 publications

(46 reference statements)

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“…Our 2D-CTR shows an improved correlation with cardiac function compared with the traditional CTR. We concur with other authors 8 in accepting that radiographic assessment of the heart cannot replace LVEF measurement by echocardiographic or radionuclide means, but we believe that the 2D-CTR can be of help to the radiologist in the initial and subsequent assessment of the heart on digital chest radiographs. Further studies are required to determine the sensitivity of follow-up 2D-CTR in detecting changing cardiac function, as detected on other indices.…”

Section: Discussionsupporting

confidence: 86%

“…However, patients with known valvular heart disease were not included in our study, and it is likely that the left ventricle will be the predominant chamber in most patients. Our study shows an improved correlation between CTR and LVEF than that found in other studies 8 and 2D-CTR shows further improvement.…”

Section: Discussionsupporting

confidence: 59%

“…16,17 In other studies, CTR has been shown to correlate poorly with echocardiographic function. 8,18 We feel the 2D-CTR offers a numerical estimate that correlates better with LV function than the CTR and can be estimated on initial and sequential examinations as a cardiac assessment measurement. Although not appropriate in all patients, we believe the small increase in analysis time is justifiable in those patients with a borderline CTR or in the sequential follow-up of known cardiac disease, where subtle changes in cardiac function are important.…”

Section: Discussionmentioning

confidence: 99%

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Extraction of the Two-Dimensional Cardiothoracic Ratio from Digital PA Chest Radiographs: Correlation with Cardiac Function and the Traditional Cardiothoracic Ratio

2004

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The purpose of our study was to extract the two-dimensional (2D) cardiothoracic ratio from digital chest radiographs using image analysis software on a Magic View 300 system. We also wanted to investigate its correlation with cardiac function, as defined by left ventricular ejection fraction from MUGA scanning, and with the traditional one-dimensional cardiothoracic ratio. One hundred patients undergoing radionuclide ventriculography and concurrent digital PA chest radiography using a commercial selenium detector system were studied. The 2D cardiothoracic ratio was extracted by defining a region of interest around the cardiac and thoracic areas and calculating a ratio of the two pixel counts obtained. The one-dimensional cardiothoracic ratio was calculated in the traditional manner. Regression analysis was used to study the association between these ratios and the ejection fraction. The 2D ratio could be achieved on all radiographs after image manipulation. The traditional linear cardiothoracic ratio showed an inverse correlation with left ventricular ejection fraction (r = )0.45). The 2D cardiothoracic ratio showed an improved correlation (r = )0.52). Assuming that a left ventricular ejection fraction of 55% or more indicates normal cardiac function, the normal 2D cardiothoracic ratio is 0.23 or less and a ratio of 1:4 is suggested. The ratio of cardiac and thoracic area correlates better with cardiac function as assessed by left ventricular ejection fraction than the traditional linear cardiothoracic ratio. Two-dimensional cardiothoracic ratio is easily extracted and improves the data yield from digital PA chest radiographs on PACS systems.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 59%

Section: Discussionmentioning

confidence: 99%

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Extraction of the Two-Dimensional Cardiothoracic Ratio from Digital PA Chest Radiographs: Correlation with Cardiac Function and the Traditional Cardiothoracic Ratio

2004

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“…cardiomegaly. 6,7 The enlargement of cardiac chambers (ventricles and atriums) could be assigned for number of pathological processes that affect cardiovascular function, for instance: the left ventricular hypertrophy, dilation and remodeling have been considered as markers and outcome assessment in acquired heart disease. 8,9 In same utilization, the right heart enlargement carries additional predictive value to that of left ventricular dilation in acquired heart failure 10,11 Enlargement of the left atrium is a risk factor for atrial fibrillation, stroke and death in patients with ischemic heart disease and heart failure.…”

Section: Introductionmentioning

confidence: 99%

Studying of heart diseases prevalence, distribution and cofactors in Sudanese population

et al. 2016

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“…8 In other cardiac diseases, however, conventional radiography of the thorax is known not to allow an accurate assessment of the degree of ventricular dysfunction 9,10 .…”

Section: Value Of the Radiological Study Of The Thorax For Diagnosingmentioning

confidence: 99%

Value of the radiological study of the thorax for diagnosing left ventricular dysfunction in Chagas' disease

Perez¹,

Ribeiro²,

Barros³

et al. 2003

Arq. Bras. Cardiol.

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The Relationship Between Cardiothoracic Ratio and Left Ventricular Ejection Fraction in Congestive Heart Failure

Cited by 50 publications

References 27 publications

Extraction of the Two-Dimensional Cardiothoracic Ratio from Digital PA Chest Radiographs: Correlation with Cardiac Function and the Traditional Cardiothoracic Ratio

Extraction of the Two-Dimensional Cardiothoracic Ratio from Digital PA Chest Radiographs: Correlation with Cardiac Function and the Traditional Cardiothoracic Ratio

Studying of heart diseases prevalence, distribution and cofactors in Sudanese population

Value of the radiological study of the thorax for diagnosing left ventricular dysfunction in Chagas' disease

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