+ Translate

Spectrum analysis of large toe plethysmographic waveshape

, : Spectrum analysis of large toe plethysmographic waveshape. Archives of Physical Medicine and Rehabilitation 66(5): 280-285

To assess plethysmographic waveform diagnostic utility in peripheral vascular disease, a spectrum analyzer was attached to the output of a conventional mercury strain gauge sensor. The resulting quantified waveforms were compared with geometrically determined waveform characteristics and resting ankle pressure ratios for a group of 16 men who ranged from healthy to severely occluded (lower extremities). Of the various harmonics contained within the waveform, second harmonic magnitude best correlated with those geometric waveform characteristics believed to possess diagnostic value. Second harmonic magnitude was positively related (0.9 correlation coefficient) to the 1.33 power of resting ankle pressure ratio. Because it does not require exercise or pressure cuffs, spectrum analyzer waveform based diagnosis may be suited for mass screening purposes.

(PDF 0-2 workdays service)

Accession: 006461155

PMID: 4004516

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Weiss D.S.; Reinis S., 1989: Q waveshape analysis of single trial flash evoked human retinal potentials. Society for Neuroscience Abstracts 15(1): 117

Wajszczuk W.J.; Cywinski J.K., 1973: Importance of oscilloscopic analysis of pacemaker pulse waveshape in pacemaker follow up. Medical Instrumentation 7(1): 83

Krahn, M.; Béroud, C.; Labelle, Véronique.; Nguyen, K.; Bernard, Rëlle.; Bassez, G.; Figarella-Branger, D.; Fernandez, C.; Bouvenot, J.; Richard, I.; Ollagnon-Roman, E.; Bevilacqua, J.A.; Salvo, E.; Attarian, S.; Chapon, Fçoise.; Pellissier, J-François.; Pouget, J.; Hammouda, E.Hadi.; Laforêt, P.; Urtizberea, J.Andoni.; Eymard, B.; Leturcq, F.; Lévy, N., 2008: Analysis of the DYSF mutational spectrum in a large cohort of patients. Dysferlinopathies belong to the heterogeneous group of autosomal recessive muscular dystrophies. Mutations in the gene encoding dysferlin (DYSF) lead to distinct phenotypes, mainly Limb Girdle Muscular Dystrophy type 2B (LGMD2B) and Miyoshi myopat...

Feldman, H.A., 1993: Power Spectrum Analysis of Large Baseline Redshift Surveys♣. Annals of the New York Academy of Sciences 688: 519-521

Thomas, C.E., 1966: Optical spectrum analysis of large space bandwidth signals. Coherent optical spectrum analyzers are available for determining the frequency content of many analog signals written simultaneously on film. The space bandwidth product of each signal must not exceed one thousand for a typical 35 mm system. By s...

Finzi, S.; Li, Y.Y.; Mitchell, T.N.; Farr, A.; Sundin, O.; Maumenee, I.H., 2002: Posterior polar cataract Clinical spectrum and genetic analysis in a large family. American Journal of Human Genetics 71(4 Supplement): 453, October

Frewen, B.E.; Merrihew, G.E.; Wu, C.C.; Noble, W.Stafford.; MacCoss, M.J., 2006: Analysis of peptide MS/MS spectra from large-scale proteomics experiments using spectrum libraries. A widespread proteomics procedure for characterizing a complex mixture of proteins combines tandem mass spectrometry and database search software to yield mass spectra with identified peptide sequences. The same peptides are often detected in mult...

Suffet I.H., 1987: An evaluation of the preparation of resin samplers for broad spectrum analysis of large volume samples. Suffet, Id M. Malaiyandi (ed.). Advances In Chemistry Series, 214. Organic Pollutants In Water: Sampling, Analysis, And Toxicity Testing; Symposium Held At The 188th Meeting Of The American Chemical Society, Philadelphia, Pennsylvania, Usa, August 29-31, . Xvi 797p. American Chemical Society: Washington, D.c., Usa. Illus. 267-294

Capon J., 1973: Signal Processing and Frequency-Wavenumber Spectrum Analysis for a Large Aperture Seismic Array. Methods in Computational Physics 13: 1-59

Joshi, G.; Biederman, J.; Petty, C.; Goldin, R.L.; Furtak, S.L.; Wozniak, J., 2013: Examining the comorbidity of bipolar disorder and autism spectrum disorders: a large controlled analysis of phenotypic and familial correlates in a referred population of youth with bipolar I disorder with and without autism spectrum disorders. Although mood dysregulation is frequently associated with autism spectrum disorders (ASD) and autistic traits are common in youth with bipolar disorder, uncertainties remain regarding the comorbid occurrence of bipolar disorder and ASD. This study...