Computed tomographic imaging of the heart: the dynamic spatial reconstructor

• Published in: The Radiologic clinics of North America Vol. 18; no. 3; p. 547
• Main Authors: Ritman, E L, Harris, L D, Kinsey, J H, Robb, R A
• Format: Journal Article
• Language: English
• Published: United States 01-12-1980
• Subjects: Animals; Cardiac Volume; Coronary Angiography; Coronary Circulation; Dogs; Heart - diagnostic imaging; Heart - physiopathology; Humans; Myocardial Infarction - diagnostic imaging; Myocardial Infarction - pathology; Myocardial Infarction - physiopathology; Myocardium - pathology; Radiographic Image Enhancement - instrumentation; Tomography, X-Ray Computed - instrumentation
• ISSN: 0033-8389
• DOI: 10.1016/S0033-8389(22)01303-3

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.