Ringertz H G, Palmer R G, Lipton M J, Carlsson E
Acta Radiol Diagn (Stockh). 1983;24(1):11-6. doi: 10.1177/028418518302400103.
The CT attenuation of the myocardium varies with the contrast medium concentration of the blood at steady state. The demonstration of myocardial infarcts depends on the differences of CT numbers within the myocardium. In order to make possible objective estimation and measurement of myocardial ischemia the normal regression between CT attenuation of the blood pool and the myocardium has been determined in 13 dogs. The relationship has been applied to 15 dogs with experimental infarcts examined with contrast enhanced CT. The results indicate that this method may be of value in identifying and sizing myocardial infarcts of different ages in patients.
心肌的CT衰减在稳态时随血液中造影剂浓度而变化。心肌梗死的显示取决于心肌内CT值的差异。为了能够客观地估计和测量心肌缺血，已在13只犬中确定了血池与心肌CT衰减之间的正常回归关系。该关系已应用于15只经对比增强CT检查的实验性梗死犬。结果表明，该方法在识别和确定患者不同年龄的心肌梗死大小方面可能具有价值。
