期刊
RADIOLOGY
卷 218, 期 2, 页码 580-585出版社
RADIOLOGICAL SOC NORTH AMERICA
DOI: 10.1148/radiology.218.2.r01fe46580
关键词
coronary vessels, MR; heart, MR; magnetic resonance (MR), motion correction; magnetic resonance (MR), vascular studies
资金
- NHLBI NIH HHS [R01HL60879] Funding Source: Medline
The authors developed an electrocardiography-triggered M-mode navigator-echo technique to help monitor cardiac motion and identify the period of minimal cardiac motion in the cardiac cycle. Coronary magnetic resonance angiography was performed in eight healthy adult volunteers and one patient with heart disease. To minimize cardiac motion effects, trigger delays were estimated with the navigator-echo technique and two empirical formulas. The quality of images obtained with the different delay times was compared for clarity of depiction of the coronary arteries. Image quality was best with the delay calculated with the navigator-echo technique.
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