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Noninvasive Cardiac Chamber Blood Oxygenation Measurements: T2 and QSM approaches.
Yan Wen1,2, Jonathan W. Weinsaft3, Thanh D. Nguyen2, Jiwon Kim3, Yi Wang4,5, and Pascal Spincemaille2
1Meinig School of Biomedical Engineering, Cornell University, new york, NY, United States, 2Radiology, Weill Cornell Medicine, New York, NY, United States, 3Medicine, Weill Cornell Medicine, New York, NY, United States, 4Meinig School of Biomedical Engineering, Cornell University, New York, NY, United States, 5Radiology, Weill Cornell Medicine, new york, NY, United States
Previous studies have demonstrated noninvasive cardiac chamber blood oxygenation measurement using T2 and QSM. This work compares the two approaches for such measurements in healthy volunteers. The results showed that T2 and QSM measurements have reasonable linear correlation.
Figure 2: The oxygen saturation map obtained from T2 and QSM.
Figure 2. Scatter plot showing a linear relationship between T2 based $$${\Delta}SaO_2$$$ and QSM based $$${\Delta}SaO_2$$$ with good correlation. Bland Altman plots shows a small bias between the two methods for measuring $$${\Delta}SaO_2$$$.