Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training
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...
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| Format: | Article |
| Language: | English |
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BMC
2019-10-01
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| Series: | BMC Medical Education |
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| Online Access: | http://link.springer.com/article/10.1186/s12909-019-1809-2 |
| _version_ | 1818990614498246656 |
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| author | Tobias Hüppe Heinrich Volker Groesdonk Thomas Volk Stefan Wagenpfeil Benedict Wallrich |
| author_facet | Tobias Hüppe Heinrich Volker Groesdonk Thomas Volk Stefan Wagenpfeil Benedict Wallrich |
| author_sort | Tobias Hüppe |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-20T19:57:10Z |
| format | Article |
| id | doaj.art-48db8d6790b842f0a2dc27c8fa6909ec |
| institution | Directory Open Access Journal |
| issn | 1472-6920 |
| language | English |
| last_indexed | 2024-12-20T19:57:10Z |
| publishDate | 2019-10-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Medical Education |
| spelling | doaj.art-48db8d6790b842f0a2dc27c8fa6909ec2022-12-21T19:28:08ZengBMCBMC Medical Education1472-69202019-10-011911810.1186/s12909-019-1809-2Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of trainingTobias Hüppe0Heinrich Volker Groesdonk1Thomas Volk2Stefan Wagenpfeil3Benedict Wallrich4Department of Anesthesiology, Intensive Care and Pain Therapy, Saarland University, Medical CenterDepartment of Intensive Care Medicine, Helios Klinikum ErfurtDepartment of Anesthesiology, Intensive Care and Pain Therapy, Saarland University, Medical CenterInstitute for Medical Biometry, Epidemiology and Medical Informatics, Saarland University Medical CenterDepartment of Anesthesiology, Intensive Care and Pain Therapy, Saarland University, Medical CenterAbstract 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.http://link.springer.com/article/10.1186/s12909-019-1809-2EchocardiographyTraining programStudentsLeft ventricular ejection fractionUltrasound |
| spellingShingle | Tobias Hüppe Heinrich Volker Groesdonk Thomas Volk Stefan Wagenpfeil Benedict Wallrich Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training BMC Medical Education Echocardiography Training program Students Left ventricular ejection fraction Ultrasound |
| title | Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training |
| title_full | Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training |
| title_fullStr | Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training |
| title_full_unstemmed | Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training |
| title_short | Image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training |
| title_sort | image quality to estimate ventricular ejection fraction by last year medical students improves after short courses of training |
| topic | Echocardiography Training program Students Left ventricular ejection fraction Ultrasound |
| url | http://link.springer.com/article/10.1186/s12909-019-1809-2 |
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