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- W2358804924 abstract "Objective Non-invasively Magnetic Resonance(MR)flow measurement technique was used to observe the improved conditions of coronary flow and flow reserve(CFR)after interventional therapy.Methods The patients who suffered from coronary heart disease and prepared to receive interventional therapy were enrolled.All the patients underwent MR examination and velocity encoding phase contrast(VEPC)to measure the flow of right coronary artery and proximal segments of the left ascending artery respectively.The flows at rest and stress status with intravenous dipyridamole were determined,and then the CFR was calculated based on the formal.After successfully interventional therapy,the patients with single morbid vessel were underwent MR examination again from 3 to 7 days.The conditions of coronary flow and CFR before and after the intervention were compared.Results There were 29 patients with single morbid vessel who underwent successful intervention therapy and MR examination before and after the intervention,among them 13 whose RCA and 16 whose LAD were involved.The mean rest flow increased from(1.05±0.54)ml/sec in pre-therapy to(1.27±0.57)ml/sec in post-therapy(P0.05).The mean stress flow increased from(1.31±0.64)ml/sec in pre-therapy to(2.35±1.00)ml/sec in post therapy(P0.01).And the CFR increased from(1.28±0.27)to(1.90±0.40)(P0.01).Compared the previous publication result,the CFR value was still lower than the mean values of the normal vessel and mild stenosis of the vessel.Conclusion In the early stage after successful coronary intervention,the MR blood flow measurement can detect remakble improvement of blood flow in the morbid vessel,with CFR increase.However it does not reach to the normal range." @default.
- W2358804924 created "2016-06-24" @default.
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- W2358804924 date "2009-01-01" @default.
- W2358804924 modified "2023-09-27" @default.
- W2358804924 title "Changes of Coronary Flow and Flow Reserve by Magnetic Resonance after Coronary Intervention" @default.
- W2358804924 hasPublicationYear "2009" @default.
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