Open AccessThe Inherent Mathematical Error Factors in the Radiological Determination of Heart Volume
Author(s) -
Göran Sperber
Publication year - 1978
Publication title -
upsala journal of medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 41
eISSN - 2000-1967
pISSN - 0300-9734
DOI - 10.3109/03009737809179118
Subject(s) - medicine , volume (thermodynamics) , radiological weapon , standard error , statistics , cardiology , surgery , mathematics , physics , thermodynamics
When heart volume is calculated from two X-ray projections, part of the error is due to the fact that the formulas employed are not mathematically exact. This error was calculated for a variety of shapes and positions of the heart. The results indicate that this error may reach about 30% for hearts of fairly ordinary shape. When the standard projections are used, horizontally positioned hearts are particularly liable to give rise to large errors of this kind.