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Figure 6 | Journal of Cardiovascular Magnetic Resonance

Figure 6

From: FLASH proton density imaging for improved surface coil intensity correction in quantitative and semi-quantitative SSFP perfusion cardiovascular magnetic resonance

Figure 6

Example stress scan in a patient with no myocardial infarction and no coronary artery stenosis. FLASH (a) and low flip angle SSFP (d) PD frames and their corresponding quantitative MBF maps (b and e respectively) and regional perfusion signal intensity curves (c and f), as well as some representative frames from the high flip angle perfusion series (g). The low flip angle SSFP PD image (d) shows banding artifacts on top of the myocardium (yellow arrows), which lead to overcorrection of the SCIC, causing artefactual lower perfusion values in the inferior and inferolateral walls (e). This affects both the MBF map, and the regional time intensity curves (f), and could lead to a false positive diagnosis. The FLASH PD frames (a) are unaffected by banding artifacts, which leads to an improved SCIC, a more homogeneous perfusion map (b) and better agreement between the perfusion curves (c).

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