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doi:10.22028/D291-30900
Titel: | Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training |
VerfasserIn: | Hüppe, Tobias Groesdonk, Heinrich Volker Volk, Thomas Wagenpfeil, Stefan Wallrich, Benedict |
Sprache: | Englisch |
Titel: | BMC Medical Education |
Bandnummer: | 19 |
Heft: | 1 |
Verlag/Plattform: | BMC |
Erscheinungsjahr: | 2019 |
Freie Schlagwörter: | Echocardiography Training program Students Left ventricular ejection fraction Ultrasound |
DDC-Sachgruppe: | 610 Medizin, Gesundheit |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | Background: Transthoracic echocardiography is the primary imaging modality for diagnosing cardiac conditions but medical education in this field is limited. We tested the hypothesis that a structured theoretical and supervised practical course of training in focused echocardiography in last year medical students results in a more accurate assessment and more precise calculation of left ventricular ejection fraction after ten patient examinations. Methods: After a theoretical introduction course 25 last year medical students performed ten transthoracic echocardiographic examination blocks in postsurgical patients. Left ventricular function was evaluated both with an eye-balling method and with the calculated ejection fraction using diameter and area of left ventricles. Each examination block was controlled by a certified and blinded tutor. Bias and precision of measurements were assessed with Bland and Altman method. Results: Using the eye-balling method students agreed with the tutor’s findings both at the beginning (88%) but more at the end of the course (95.7%). The variation between student and tutor for calculation of area, diameter and ejection fraction, respectively, was significantly lower in examination block 10 than in examination block 1 (each p < 0.001). Students underestimated both the length and the area of the left ventricle at the outset, as complete imaging of the left heart in the ultrasound sector was initially unsuccessful. Conclusions: A structured theoretical and practical transthoracic echocardiography course of training for last year medical students provides a clear and measurable learning experience in assessing and measuring left ventricular function. At least 14 examination blocks are necessary to achieve 90% agreement of correct determination of the ejection fraction. |
DOI der Erstveröffentlichung: | 10.1186/s12909-019-1809-2 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-309007 hdl:20.500.11880/29122 http://dx.doi.org/10.22028/D291-30900 |
ISSN: | 1472-6920 |
Datum des Eintrags: | 11-Mai-2020 |
Fakultät: | M - Medizinische Fakultät |
Fachrichtung: | M - Anästhesiologie |
Professur: | M - Prof. Dr. Thomas Volk |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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s12909-019-1809-2.pdf | Image quality | 846,59 kB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons