2009
DOI: 10.1111/j.1600-0404.1998.tb00643.x
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Dye dilution and oximetry for detection of patent foramen ovale

Abstract: Objectives ‐ Patent foramen ovale (PFO) is a risk factor for stroke of undetermined (cryptogenic) origin. Low cost and non‐invasive bedside tests for detection of PFO are needed as alternatives to contrast transesophageal echocardiography. We investigated whether dye dilution curves and oximeter recordings are useful for detecting PFO and what is the prevalence of PFO in patients with cryptogenic stroke determined with these bedside methods. We also studied whether stroke risk factors, number of brain lesions,… Show more

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Cited by 8 publications
(3 citation statements)
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“…One of the authors of this paper (MV) designed the densitometer and the software for the computer analysis of the dye dilution curves and the oximeter recordings. 18 20 The equipment became available for clinical use in 1993.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…One of the authors of this paper (MV) designed the densitometer and the software for the computer analysis of the dye dilution curves and the oximeter recordings. 18 20 The equipment became available for clinical use in 1993.…”
Section: Methodsmentioning
confidence: 99%
“…can also be detected non-invasively using an earpiece densitometer. [18][19][20][21] The purpose of this study was to evaluate the efficacy of shunt size calculation using this non-invasive dye dilution method with indocyanine green solution and compare it to the gold standard of invasive oximetric quantitation of shunting using Fick's principle. Second, we evaluated how well the measured shunt size correlates to the native and invasive stop-flow balloon measured size of the ASD on TEE.…”
Section: Key Questionsmentioning
confidence: 99%
“…First suggested by Karltunen et al, 25 pulse oximetry (SpO 2 ) via an ear sensor has been utilized for RLS screening through the detection of an oxygen desaturation response following repetitive Valsalva procedures.…”
Section: Ear Oximetrymentioning
confidence: 99%