4. 医師側からの血流計測の立場から(放射線機器を用いた血流計測の現状と将来)

概要

論文の詳細を見る
Measurements of blood flow in organs such as brain and heart has been available by using DSA, MRI and PET/SPECT method. Radiologists and technologists who are working in radiology department have to interest in the blood flow measurement in addition to organ morphology. In this paper, absolute and relative blood flow measurements were divided into two categories (intravascular flood flow and tissue blood flow) and those clinical significances were discussed. The former was used such as caroid and intracardiac blood flow measurements (DSA, CT, Angio, Ultrasound and MRI). The latter was used such as cerebral and myocardial blood flow measurements (PET and SPECT). Furthermore, metabolic activity measurements such as oxygen comsumption and glucose utilization are nessesary to evalate in relation to blood flow, since the mismatch of perfusion and metabolism are often observed in clinical setting. The luxury and misery perfusion (the mismatch of cerebral blood flow and oxygen comsumption) were demonstrated in cerebral infarction in acute stage and the glucose utilization and blood flow mismatch was demonstrated in myocardial ischemia. Therefore, these combined methods were proven to be useful for the assessment of neuron activity and myocardial viability. In conclusion, blood flow measurements shoud be performed actively as "bifunctional chelate" of morphology and metabolism.
公益社団法人日本放射線技術学会の論文
1991-01-01