Biomaterial Database

Angiocardiographic right ventricular volume determination. Accuracy, as determined from human casts, and clinical application. 1978

P E Lange, and D Onnasch, and F L Farr, and P H Heintzen

On the basis of 22 life-like human casts (the method is described in the first paper of this series) the influence of (a) spatial orientation, (b) cardiac-phase and (c) biplane (BP) and single-plane (SP) methods of volume calculation on the accuracy of right ventricular (RV) angiocardiographic volume determination was quantitated. The best results are obtained, when a BP approach is utilized and when position and cardiac-phase appropriate correction factors (CF) are applied to the model volumes (multiple-slices (MS) and area--length (AL) methods). Thus the statistical error is decreased and a more important larger systematic error (especially for SP) avoided. The MS and AL methods perform equally well; on the average, however, the MS method is slightly favored. The application of this concept of differentiated CFs to 100 normal right ventricles of infants and children resulted in nonlinear relationships between RV volumes and their respective body surface areas (BSA) (EDV = 73.1 . BSA1.219, r = 0.961,SV = 46.2 . BSA1.219, r = 0.937). The ejection fraction (63.3%) does not correlate with the BSA (r = -0.292). The right ventricle accomplishes the same SV (with respect to BSA) as the left ventricle from a higher enddiastolic and endsystolic level.

UI	MeSH Term	Description	Entries
D007223	Infant	A child between 1 and 23 months of age.	Infants
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008953	Models, Anatomic	Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.	Anatomic Models,Models, Surgical,Moulages,Models, Anatomical,Anatomic Model,Anatomical Model,Anatomical Models,Model, Anatomic,Model, Anatomical,Model, Surgical,Moulage,Surgical Model,Surgical Models
D002306	Cardiac Volume	The volume of the HEART, usually relating to the volume of BLOOD contained within it at various periods of the cardiac cycle. The amount of blood ejected from a ventricle at each beat is STROKE VOLUME.	Heart Volume,Cardiac Volumes,Heart Volumes,Volume, Cardiac,Volume, Heart,Volumes, Cardiac,Volumes, Heart
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D003201	Computers	Programmable electronic devices designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations.	Calculators, Programmable,Computer Hardware,Computers, Digital,Hardware, Computer,Calculator, Programmable,Computer,Computer, Digital,Digital Computer,Digital Computers,Programmable Calculator,Programmable Calculators
D003971	Diastole	Post-systolic relaxation of the HEART, especially the HEART VENTRICLES.	Diastoles
D006321	Heart	The hollow, muscular organ that maintains the circulation of the blood.	Hearts
D006331	Heart Diseases	Pathological conditions involving the HEART including its structural and functional abnormalities.	Cardiac Disorders,Heart Disorders,Cardiac Diseases,Cardiac Disease,Cardiac Disorder,Heart Disease,Heart Disorder