Academic Journal
A microcomputer based non-invasive cardiopulmonary monitor using a microwave interferometer
| Τίτλος: | A microcomputer based non-invasive cardiopulmonary monitor using a microwave interferometer |
|---|---|
| Συγγραφείς: | Basu, Tanmoy K. |
| Πηγή: | Theses |
| Στοιχεία εκδότη: | Digital Commons @ NJIT |
| Έτος έκδοσης: | 1989 |
| Συλλογή: | Digital Commons @ New Jersey Institute of Technology (NJIT) |
| Θεματικοί όροι: | Interferometer, Microwave devices, Electrocardiography, Signal processing -- Data processing, Electrical and Electronics |
| Περιγραφή: | With a microwave interferometer the vibrational velocity of the anterior (front), as well as posterior (back) chest wall can be monitored and recorded. The recorded signals are a reflection of the mechanical cardiac activity within the chest cavity, as opposed to Electrocardiogram (ECG) which is a reflection of the electrical cardiac activity. The interferometer recordings are obtained with no physical contact between the instrument and the subject. Moreover, the subject can be fully clothed since microwave energy readily passes through normal dry clothing. A microwave interferometer that is capable of detecting the vibrational velocity of the surfaces of the chest cavity (anterior and posterior) has been described in detail in the thesis. The objective of this research work is to monitor, record and analyze these vibrational characteristics of the chest wall using the microwave interferometer from co-operative healthy, normal subjects, both males as well as females, and thus to evaluate the possibility of using this instrument as a non-invasive and non-contacting cardiopulmonary monitor. The recordings from an ECG are very well understood by doctors and engineers today. By studying the signals obtained from the microwave interferometer with the ECG as a timing reference, and bearing in mind that certain mechanical cardiac events, such as valves opening and closing occur at certain points in the RR interval of the ECG, an attempt has been made to identify a common 'signature' or repetitive vibration pattern of the chest wall in normal, healthy male and female subjects. The interferometer data from one subject is autocorrelated to accentuate those features that are repetitive and also to attenuate the non-repetitive features. High amplitude velocity peaks are noticed at similar times within each cardiac cycle . In order to relate the timing of the peaks in the raw interferometer signal to the timing of certain known events in the cardiac cycle, such as the R wave of the ECG (recorded simultaneously), the ... |
| Τύπος εγγράφου: | text |
| Περιγραφή αρχείου: | application/pdf |
| Γλώσσα: | unknown |
| Relation: | https://digitalcommons.njit.edu/theses/2722; https://digitalcommons.njit.edu/context/theses/article/3736/viewcontent/njit_etd1989_070.pdf |
| Διαθεσιμότητα: | https://digitalcommons.njit.edu/theses/2722 https://digitalcommons.njit.edu/context/theses/article/3736/viewcontent/njit_etd1989_070.pdf |
| Αριθμός Καταχώρησης: | edsbas.36F1CE48 |
| Βάση Δεδομένων: | BASE |
| FullText | Text: Availability: 0 CustomLinks: – Url: https://digitalcommons.njit.edu/theses/2722# Name: EDS - BASE (ns324271) Category: fullText Text: View record from BASE |
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| Header | DbId: edsbas DbLabel: BASE An: edsbas.36F1CE48 RelevancyScore: 753 AccessLevel: 3 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 753.149658203125 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: A microcomputer based non-invasive cardiopulmonary monitor using a microwave interferometer – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Basu%2C+Tanmoy+K%2E%22">Basu, Tanmoy K.</searchLink> – Name: TitleSource Label: Source Group: Src Data: Theses – Name: Publisher Label: Publisher Information Group: PubInfo Data: Digital Commons @ NJIT – Name: DatePubCY Label: Publication Year Group: Date Data: 1989 – Name: Subset Label: Collection Group: HoldingsInfo Data: Digital Commons @ New Jersey Institute of Technology (NJIT) – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Interferometer%22">Interferometer</searchLink><br /><searchLink fieldCode="DE" term="%22Microwave+devices%22">Microwave devices</searchLink><br /><searchLink fieldCode="DE" term="%22Electrocardiography%22">Electrocardiography</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing+--+Data+processing%22">Signal processing -- Data processing</searchLink><br /><searchLink fieldCode="DE" term="%22Electrical+and+Electronics%22">Electrical and Electronics</searchLink> – Name: Abstract Label: Description Group: Ab Data: With a microwave interferometer the vibrational velocity of the anterior (front), as well as posterior (back) chest wall can be monitored and recorded. The recorded signals are a reflection of the mechanical cardiac activity within the chest cavity, as opposed to Electrocardiogram (ECG) which is a reflection of the electrical cardiac activity. The interferometer recordings are obtained with no physical contact between the instrument and the subject. Moreover, the subject can be fully clothed since microwave energy readily passes through normal dry clothing. A microwave interferometer that is capable of detecting the vibrational velocity of the surfaces of the chest cavity (anterior and posterior) has been described in detail in the thesis. The objective of this research work is to monitor, record and analyze these vibrational characteristics of the chest wall using the microwave interferometer from co-operative healthy, normal subjects, both males as well as females, and thus to evaluate the possibility of using this instrument as a non-invasive and non-contacting cardiopulmonary monitor. The recordings from an ECG are very well understood by doctors and engineers today. By studying the signals obtained from the microwave interferometer with the ECG as a timing reference, and bearing in mind that certain mechanical cardiac events, such as valves opening and closing occur at certain points in the RR interval of the ECG, an attempt has been made to identify a common 'signature' or repetitive vibration pattern of the chest wall in normal, healthy male and female subjects. The interferometer data from one subject is autocorrelated to accentuate those features that are repetitive and also to attenuate the non-repetitive features. High amplitude velocity peaks are noticed at similar times within each cardiac cycle . In order to relate the timing of the peaks in the raw interferometer signal to the timing of certain known events in the cardiac cycle, such as the R wave of the ECG (recorded simultaneously), the ... – Name: TypeDocument Label: Document Type Group: TypDoc Data: text – Name: Format Label: File Description Group: SrcInfo Data: application/pdf – Name: Language Label: Language Group: Lang Data: unknown – Name: NoteTitleSource Label: Relation Group: SrcInfo Data: https://digitalcommons.njit.edu/theses/2722; https://digitalcommons.njit.edu/context/theses/article/3736/viewcontent/njit_etd1989_070.pdf – Name: URL Label: Availability Group: URL Data: https://digitalcommons.njit.edu/theses/2722<br />https://digitalcommons.njit.edu/context/theses/article/3736/viewcontent/njit_etd1989_070.pdf – Name: AN Label: Accession Number Group: ID Data: edsbas.36F1CE48 |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edsbas&AN=edsbas.36F1CE48 |
| RecordInfo | BibRecord: BibEntity: Languages: – Text: unknown Subjects: – SubjectFull: Interferometer Type: general – SubjectFull: Microwave devices Type: general – SubjectFull: Electrocardiography Type: general – SubjectFull: Signal processing -- Data processing Type: general – SubjectFull: Electrical and Electronics Type: general Titles: – TitleFull: A microcomputer based non-invasive cardiopulmonary monitor using a microwave interferometer Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Basu, Tanmoy K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Type: published Y: 1989 Identifiers: – Type: issn-locals Value: edsbas – Type: issn-locals Value: edsbas.oa Titles: – TitleFull: Theses Type: main |
| ResultId | 1 |