ACCURATUM: improved calcium volume scoring using a mesh-based algorithm--a phantom study.
To overcome the limitations of the classical volume scoring method for quantifying coronary calcifications, including accuracy, variability between examinations, and dependency on plaque density and acquisition parameters, a mesh-based volume measurement method has been developed. It was evaluated a...
| Publicado en: | European Radiology Vol. 19; no. 3; pp. 591 - 599 |
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| Autores principales: | , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Mar2009
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105446258&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105446258 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Mar2009 vid: 19 iid: 3 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 105446258 36370702 NLM18818930 2010187192 10.1007/s00330-008-1181-9 NLM18818930 105446258 ppf: 591 ppct: 8 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: ACCURATUM: improved calcium volume scoring using a mesh-based algorithm--a phantom study. aug: au: Saur SC Alkadhi H Desbiolles L Székely G Cattin PC Saur, Stefan C Alkadhi, Hatem Desbiolles, Lotus Székely, Gábor Cattin, Philippe C affil: Computer Vision Laboratory, ETH Zurich, Zurich, Switzerland sug: subj: Calcinosis Radiography Phantoms, Imaging Tomography, X-Ray Computed Methods Algorithms Calcium Metabolism Heart Radiography Information Science Radiographic Image Interpretation, Computer-Assisted Reproducibility of Results Software Human ab: To overcome the limitations of the classical volume scoring method for quantifying coronary calcifications, including accuracy, variability between examinations, and dependency on plaque density and acquisition parameters, a mesh-based volume measurement method has been developed. It was evaluated and compared with the classical volume scoring method for accuracy, i.e., the normalized volume (measured volume/ground-truthed volume), and for variability between examinations (standard deviation of accuracy). A cardiac computed-tomography (CT) phantom containing various cylindrical calcifications was scanned using different tube voltages and reconstruction kernels, at various positions and orientations on the CT table and using different slice thicknesses. Mean accuracy for all plaques was significantly higher (p < 0.0001) for the proposed method (1.220 +/- 0.507) than for the classical volume score (1.896 +/- 1.095). In contrast to the classical volume score, plaque density (p = 0.84), reconstruction kernel (p = 0.19), and tube voltage (p = 0.27) had no impact on the accuracy of the developed method. In conclusion, the method presented herein is more accurate than classical calcium scoring and is less dependent on tube voltage, reconstruction kernel, and plaque density. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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