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31. |
Magnetic resonance imaging of acute myocardial infarctiongadolinium diethylenetriamine pentaacetic acid as a marker of reperfusion |
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Circulation,
Volume 74,
Issue 6,
1986,
Page 1434-1440
Ronald Peshock,
Craig Malloy,
L. Buja,
Ray Nunnally,
Robert Parkey,
James Willerson,
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摘要:
We examined the effects of a paramagnetic contrast agent, gadolinium diethylenetriamine pentaacetic acid (Gd-DTPA) on magnetic resonance images of acute myocardial infarction with and without reperfusion. Twenty-two dogs underwent occlusion of the left anterior descending coronary artery (LAD). In 10 dogs (group I) the LAD remained occluded for 3 hr and in the other 12 (group II) for 2 hr followed by 1 hr of reperfusion. Gd-DTPA (0. 34 mM/kg) was administered to five dogs in group I at 2 hr and 5 min after occlusion and to seven dogs in group II 5 min after reperfusion. At 3 hr after ligation, the hearts were excised and imaged with spin echo and inversion recovery pulse sequences on a 0.35 Tesla magnetic resonance imager. Reperfused hearts given Gd-DTPA demonstrated a significant increase in contrast between normal and reperfused myocardium as compared with nonreperfused hearts and reperfused hearts not given Gd-DTPA. This enhancement was particularly prominent in the inversion recovery images. Studies performed in vivo in two additional dogs demonstrated similar enhancement with reperfusion with Gd-DTPA in gated spin echo images. Contrastenhanced magnetic resonance imaging allows the detection of reperfusion early in the course of acute infarction.
ISSN:0009-7322
出版商:OVID
年代:1986
数据来源: OVID
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32. |
Dietary Guidelines for Healthy American AdultsA Statement for Physicians and Health Professionals by the Nutrition Committee, American Heart Association |
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Circulation,
Volume 74,
Issue 6,
1986,
Page 1465-1468
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摘要:
This statement for physicians replaces the American Heart Association'sDiet and Coronary Heart Disease, published in 1978. The current guidelines propose an optimal preventive diet for coronary heart disease. Emphasis is placed on the reduction of both saturated fat and total fat. Complex carbohydrates are recommended as the major replacement for calories from fat. Polyunsaturated and monounsaturated fats partially replace calories from other fat sources. Cholesterol and sodium guidelines are expressed relative to caloric intake, with an upper limit on each. The use of alcohol as a possible means of preventing cardiovascular disease is not advised. Maintenance of ideal body weight by calorie control and an adequate level of activity is emphasized.
ISSN:0009-7322
出版商:OVID
年代:1986
数据来源: OVID
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33. |
Guidelines for Clinical Use of Cardiac Radionuclide Imaging, December 1986A Report of the American College of Cardiology/American Heart Association Task Force on Assessment of Cardiovascular Procedures (Subcommittee on Nuclear Imaging) |
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Circulation,
Volume 74,
Issue 6,
1986,
Page 1469-1482
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PDF (2749KB)
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ISSN:0009-7322
出版商:OVID
年代:1986
数据来源: OVID
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