Precise Prediction of Right Atrium Position within Expiratory Phase Thorax

麻酔と蘇生 Volume 55 Issue 1 Page 79-82 published_at 2019-03-01
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Title ( eng )
Precise Prediction of Right Atrium Position within Expiratory Phase Thorax
Creator
Toyota Yukari
Kondo Hiroshi
Yasuda Masako
Source Title
麻酔と蘇生
Ansesthesia and Resuscitation
Volume 55
Issue 1
Start Page 79
End Page 82
Abstract
Fifteen patients who underwent CT during both the inspiratory and expiratory phases were retrospectively reviewed. The anterior posterior (AP) diameter of the thorax, the largest vertical distance from the uppermost RA level to the back surface (RA height), and the ratio of RA height to AP diameter of the thorax (RA thorax ratio) were determined. We then attempted to predict the expiratory RA height using the following 2 methods. Formula 1: Predicted expiratory RA height = Average inspiratory RA thorax ratio × Expiratory AP diameter of thorax. Formula 2: Predicted expiratory RA height = Each inspiratory RA thorax ratio × Expiratory AP diameter of thorax. In a Bland-Altman plot with Formula 1, the bias was –0.34 mm and limit of agreement ranged from –19.44 to 18.75 mm, whereas those were –1.31 mm and –9.72 to 7.10 mm with Formula 2. Our findings indicate that inspiratory CT imaging and expiratory phase thorax diameter can be used to precisely predict expiratory phase RA height in individual patients.
Keywords
right atrium
central venous pressure
computed tomography imaging
NDC
Medical sciences [ 490 ]
Language
eng
Resource Type journal article
Publisher
広島麻酔医学会
Date of Issued 2019-03-01
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0385-1664
[NCID] AN00232251