Computed tomographic imaging of the heart: the dynamic spatial reconstructor.
A particularly important potential value of the Dynamic Spatial Reconstructor approach is that all the above data will be obtainable from a single injection of contrast agent into the right ventricle or pulmonary artery. On the basis of preliminary experimental data, a concentration of at least 80 mg of iodine per ml of contrast agent should be present in the aortic root for adequate opacification of the coronary arteries and myocardium; a bolus of at least 0.5 ml of contrast medium per kg, injected into the venous circulation, is required. As high-speed, volumetric imaging, computed tomographic scan machines such as the Dynamic Spatial Reconstructor become available with higher density resolution, perhaps a single injection of contrast agent into the right atrium or even a peripheral vein may be adequate to obtain all these measurements.
D000818:Animals; D002306:Cardiac Volume; D017023:Coronary Angiography; D003326:Coronary Circulation; D004285:Dogs; D006321:Heart / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology; D009206:Myocardium / Q000473:pathology; D011856:Radiographic Image Enhancement / Q000295:instrumentation; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*