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Fig. 3 | Journal of Cardiovascular Magnetic Resonance

Fig. 3

From: Free breathing three-dimensional cardiac quantitative susceptibility mapping for differential cardiac chamber blood oxygenation – initial validation in patients with cardiovascular disease inclusive of direct comparison to invasive catheterization

Fig. 3

Cardiac QSM in Cardiac Patients. a QSM ΔSaO2 among patients grouped based on presence or absence of LV systolic dysfunction based on cine-CMR quantified ejection fraction (left) and stroke volume (right) (data shown as mean ± standard deviation). Note greater ΔSaO2 among patients with LV systolic dysfunction. b Two representative examples of QSM maps in cardiac patients. In the top patient, who had severely reduced LV function (EF = 20%), QSM measured a marked increase in ΔSaO2 (36.9%), which agreed well with invasive catheterization (40%). In the bottom patient, who had normal LV function (EF = 70%), QSM measured ΔSaO2 (24.1%) was within normal limits and was similar to invasive data (23%)

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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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