[A design of the measuring chart for magnifying-power compensation in brain angiography].
Nihon Hoshasen Gijutsu Gakkai Zasshi
; 58(3): 413-9, 2002 Mar.
Article
em Ja
| MEDLINE
| ID: mdl-12522350
ABSTRACT
PURPOSE:
When brain angiography was performed, we devised the calculation theory for rectifying magnifying power, and produced the auxiliary tool.METHOD:
We produced the frame with a size of 300 x 300 x 15 mm from the thin board made from carbon. The frame is around arranged for every 1 cm in Pb-ball of the diameter of 1 mm. We named this the measuring-chart. The measuring-chart has been arranged so that head may be surrounded. A photograph of a measuring-chart and head was taken simultaneously. The projected mark used for computing the magnifying power of a brain aneurysm. Magnifying power was used in order to measure the size of an aneurysm.RESULTS:
In the basic experiment using the stainless-steel ball whose size is known, the standard error was -2.29% +/- 5.61%. A measurement value and true value showed high correlation (R(2) = 0.9986).CONCLUSION:
The measuring-chart did not need a proofreading factor peculiar to equipment. This method had high accuracy. This method has high flexibility. It suggested that this method was useful on clinical use.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Angiografia Cerebral
/
Ampliação Radiográfica
Tipo de estudo:
Diagnostic_studies
/
Evaluation_studies
Limite:
Humans
Idioma:
Ja
Ano de publicação:
2002
Tipo de documento:
Article