| Automated left ventricular delineation in X-ray angiograms: a validation study. | |
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MedLine Citation:
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PMID: 19156892 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: Recently an automated analysis approach for left ventricular (LV) X-ray angiographic studies was proposed. This particular study aims to assess the clinical potential of this approach. BACKGROUND: Over the past 30 years much research has been carried out to develop a technique with automated contour detection of the LV outline in the end-diastolic (ED) and end-systolic (ES) phases. Very few have made it into clinical practice. Our latest approach is based on innovative model-based image processing techniques. METHODS: Two expert cardiologists analyzed 30 patient studies both by contouring the LV manually and by using the proposed automated methodology. In the latter procedure the experts were allowed to edit the automatically generated contours manually. The manual, automatic, and edited automatic contours were compared, focusing on accuracy, workflow efficiency, and inter- and intra-observer variabilities. RESULTS: No significant differences between the automatically derived and manual LV volumes were observed. The average patient study analysis time was reduced by 26%, from 4.2 to 3.1 min. When editing was required, 19% of the ED and 25% of the ES contour length needed manual correction. Furthermore, a reduction in inter-observer variability of 12.4% was observed. CONCLUSIONS: Using the proposed automated methodology for X-ray LV angiographic study analysis, a considerable reduction in required analysis time and manual effort is achieved. Because the acquired results are of clinically acceptable quality and the inter- and intra-observer variabilities are reduced, this automated approach has the potential to optimize the analysis workflow for LV X-ray angiography in clinical practice. |
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Authors:
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Elco Oost; Pranobe Oemrawsingh; Johan H Reiber; Boudewijn Lelieveldt |
Publication Detail:
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Type: Comparative Study; Journal Article; Validation Studies |
Journal Detail:
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Title: Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions Volume: 73 ISSN: 1522-726X ISO Abbreviation: Catheter Cardiovasc Interv Publication Date: 2009 Feb |
Date Detail:
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Created Date: 2009-01-28 Completed Date: 2009-03-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100884139 Medline TA: Catheter Cardiovasc Interv Country: United States |
Other Details:
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Languages: eng Pagination: 231-40 Citation Subset: IM |
Copyright Information:
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(c) 2009 Wiley-Liss, Inc. |
Affiliation:
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Division of Image Processing, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms Angiocardiography* Automation Databases as Topic Heart Ventricles / physiopathology, radiography* Humans Observer Variation Predictive Value of Tests Radiographic Image Interpretation, Computer-Assisted* Reproducibility of Results Software Stroke Volume* Ventricular Function, Left* |
| Comments/Corrections | |
Comment In:
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Catheter Cardiovasc Interv. 2009 Feb 1;73(2):241-2
[PMID:
19156893
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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