CFR and FFR assessment with PET and CTA: strengths and limitations.
- Authors
- Nakazato, Ryo; Heo, Ran; Leipsic, Jonathon; Min, James K.
- Issue Date
- May-2014
- Publisher
- Current Science Inc.
- Keywords
- Coronary flow reserve (CFR); Myocardial flow reserve (MFR); Fractional flow reserve (FFR); Positron emission tomography (PET); Computed tomography angiography (CTA)
- Citation
- Current Cardiology Reports, v.16, no.5, pp.1 - 10
- Indexed
- SCIE
SCOPUS
- Journal Title
- Current Cardiology Reports
- Volume
- 16
- Number
- 5
- Start Page
- 1
- End Page
- 10
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/159963
- DOI
- 10.1007/s11886-014-0484-5
- ISSN
- 1523-3782
- Abstract
- Positron emission tomography (PET) myocardial perfusion imaging (MPI) has high diagnostic accuracy and prognostic value. PET-MPI can also be used to quantitatively evaluate regional myocardial blood flow (MBF). This technique also allows the calculation of the coronary flow reserve (CFR)/myocardial flow reserve (MFR), which is the ratio of MBF at peak hyperemia to resting MBF. Coronary computed tomography angiography (CTA) is a non-invasive method for accurate detection and exclusion of high-grade coronary stenoses, when compared to an invasive coronary angiography reference standard. However, CTA assessment of coronary stenoses tends toward overestimation, and CTA cannot determine physiologic significance of lesions. Recent advances in computational fluid dynamics and image-based modeling permit calculation of non-invasive fractional flow reserve derived from CT (FFRCT), without the need for additional imaging, modification of acquisition protocols, or administration of medications. In this review, we cover the CFR/MFR assessment by PET and FFR assessment by CT.
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