Validation of Collateral Fractional Flow Reserve by Myocardial Perfusion Imaging
نویسندگان
چکیده
منابع مشابه
Validation of collateral fractional flow reserve by myocardial perfusion imaging.
BACKGROUND Collateral fractional flow reserve (FFR(coll)) is an index to quantify collateral blood flow, derived from coronary pressure measurements. Although well defined theoretically, its direct validation by myocardial perfusion imaging has not been established so far. Validating this index by myocardial perfusion imaging is the main aim of this study. METHODS AND RESULTS Twenty-four cons...
متن کاملValidation of magnetic resonance myocardial perfusion imaging with fractional flow reserve for the detection of significant coronary heart disease.
BACKGROUND Magnetic resonance myocardial perfusion imaging (MRMPI) has a number of advantages over the other noninvasive tests used to detect reversible myocardial ischemia. The majority of previous studies have generally used quantitative coronary angiography as the gold standard to assess the accuracy of MRMPI; however, only an approximate relationship exists between stenosis severity and fun...
متن کامل1.5 and 3 Tesla quantification of myocardial perfusion reserve in comparison to fractional flow reserve
Methods Thirty-four patients referred for coronary x-ray angiography with suspected or known coronary artery disease underwent cardiac magnetic resonance imaging (CMR) at 1.5 and 3 Tesla, and additionally FFR measurement in LAD, CX and RCA. MPR was calculated in 544 myocardial segments at both field strenghts. FFR was measured in 109 coronary arteries with a cut-off value of ≤0.8 for relevant s...
متن کاملAssessment of segmental myocardial blood flow and myocardial perfusion reserve by adenosine-stress myocardial arterial spin labeling perfusion imaging.
PURPOSE To determine the feasibility of measuring increases in myocardial blood flow (MBF) and myocardial perfusion reserve (MPR) on a per-segment basis using arterial spin labeled (ASL) magnetic resonance imaging (MRI) with adenosine vasodilator stress in normal human myocardium. MATERIALS AND METHODS Myocardial ASL scans at rest and during adenosine infusion were incorporated into a routine...
متن کامل[Myocardial bridging and fractional flow reserve].
Rev Esp Cardiol. 2005;58(9):1117 1117 A 69-year-old patient with a history of hypertension was admitted to the hospital for an acute coronary syndrome. Coronary arteriography showed a myocardial bridge at the mid-distal third of the left anterior descending artery with marked systolic compression. The fractional flow reserve (FFR) following intravenous infusion of adenosine (140 μg/kg) was 0.68...
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ژورنال
عنوان ژورنال: Circulation
سال: 2002
ISSN: 0009-7322,1524-4539
DOI: 10.1161/hc0902.104719