A Novel Ultrasound Probe Spatial Calibration Method Using a Combined Phantom and Stylus.
Intra-operative ultrasound (US) is a popular imaging modality for its non-radiative and real-time advantages. However, it is still challenging to perform an interventional procedure under two-dimensional (2-D) US image guidance. Accordingly, the trend has been to perform three-dimensional (3-D) US i...
| Publicado en: | Ultrasound in Medicine & Biology Vol. 46; no. 8; pp. 2079 - 2090 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Elsevier B.V.
Aug2020
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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=144242242&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 144242242 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 03015629 JJ6 jtl: Ultrasound in Medicine & Biology issn: 03015629 maglogo: N pubinfo: dt: Aug2020 vid: 46 iid: 8 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 144242242 144242242 NLM32446677 144242242 10.1016/j.ultrasmedbio.2020.03.018 NLM32446677 144242242 ppf: 2079 ppct: 11 formats: tig: atl: A Novel Ultrasound Probe Spatial Calibration Method Using a Combined Phantom and Stylus. aug: au: Wen, Tiexiang Wang, Cheng Zhang, Yi Zhou, Shoujun affil: Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, P. R. China sug: subj: Ultrasonography Methods Phantoms, Imaging Imaging, Three-Dimensional Methods Calibration Ultrasonography Equipment and Supplies Ultrasonography Standards Comparative Studies Multicenter Studies Evaluation Research Validation Studies Human ab: Intra-operative ultrasound (US) is a popular imaging modality for its non-radiative and real-time advantages. However, it is still challenging to perform an interventional procedure under two-dimensional (2-D) US image guidance. Accordingly, the trend has been to perform three-dimensional (3-D) US image guidance by equipping the US probe with a spatial position tracking device, which requires accurate probe calibration for determining the spatial position between the B-scan image and the tracked probe. In this report, we propose a novel probe spatial calibration method by developing a calibration phantom combined with the tracking stylus. The calibration phantom is custom-designed to simplify the alignment between the stylus tip and the B-scan image plane. The spatial position of the stylus tip is tracked in real time, and its 2-D image pixel location is extracted and collected simultaneously. Gaussian distribution is used to model the spatial position of the stylus tip and the iterative closest point-based optimization algorithm is used to estimate the spatial transformation that matches these two point sets. Once the probe is calibrated, its trajectory and the B-scan image are collected and used for the volume reconstruction in our freehand 3-D US imaging system. Experimental results demonstrate that the probe calibration approach results in less than 1-mm mean point reconstruction accuracy. It requires less than 5 min for an inexperienced user to complete the probe calibration procedure with minimal training. The mockup test shows that the 3-D images are geometrically correct with 0.28°-angle accuracy and 0.40-mm distance accuracy. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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