Augmenting intraoperative ultrasound with preoperative magnetic resonance planning models for percutaneous renal access
文献类型：期刊论文
| 作者 | Zhi-Cheng Li; Kai Li; Hai-Lun Zhan; Ken Chen; Jia Gu; Lei Wang |
| 刊名 | BIOMEDICAL ENGINEERING ONLINE
 |
| 出版日期 | 2012 |
| 英文摘要 | Background: Ultrasound (US) is a commonly-used intraoperative imaging modality for guiding percutaneous renal access (PRA). However, the anatomy identification and target localization abilities of the US imaging are limited. This paper evaluates the feasibility and efficiency of a proposed image-guided PRA by augmenting the intraoperative US with preoperative magnetic resonance (MR) planning models. Methods: First, a preoperative surgical planning approach is presented to define an optimal needle trajectory using MR volume data. Then, a MR to US registration is proposed to transfer the preoperative planning into the intraoperative context. The proposed registration makes use of orthogonal US slices to avoid local minima while reduce processing time. During the registration, a respiratory gating method is used to minimize the impact of kidney deformation. By augmenting the intraoperative US with preoperative MR models and a virtual needle, a visual guidance is provided to guarantee the correct execution of the surgical planning. The accuracy, robustness and processing time of the proposed registration were evaluated by four urologists on human data from four volunteers. Furthermore, the PRA experiments were performed by the same four urologists on a kidney phantom. The puncture accuracy in terms of the needle-target distance was measured, while the perceptual quality in using the proposed image guidance was evaluated according to custom scoring method. Results: The mean registration accuracy in terms of the root mean square (RMS) target registration error (TRE) is 3.53 mm. The RMS distance from the registered feature points to their average is 0.81 mm. The mean operating time of the registration is 6' 4 ''. In the phantom evaluation, the mean needle-target distance is 2.08 mm for the left lesion and 1.85 mm for the right one. The mean duration for all phantom PRA tests was 4' 26 ''. According to the custom scoring method, the mean scores of the Intervention Improvement, Workflow Impact, and Clinical Relevance were 4.0, 3.3 and 3.9 respectively. Conclusions: The presented image guidance is feasible and promising for PRA procedure. With careful setup it can be efficient for overcoming the limitation of current US-guided PRA. |
| 收录类别 | SCI |
| 原文出处 | http://www.biomedical-engineering-online.com/content/pdf/1475-925X-11-60.pdf |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/3994]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | BIOMEDICAL ENGINEERING ONLINE |
| 推荐引用方式 GB/T 7714 | Zhi-Cheng Li,Kai Li,Hai-Lun Zhan,et al. Augmenting intraoperative ultrasound with preoperative magnetic resonance planning models for percutaneous renal access[J]. BIOMEDICAL ENGINEERING ONLINE,2012. |
| APA | Zhi-Cheng Li,Kai Li,Hai-Lun Zhan,Ken Chen,Jia Gu,&Lei Wang.(2012).Augmenting intraoperative ultrasound with preoperative magnetic resonance planning models for percutaneous renal access.BIOMEDICAL ENGINEERING ONLINE. |
| MLA | Zhi-Cheng Li,et al."Augmenting intraoperative ultrasound with preoperative magnetic resonance planning models for percutaneous renal access".BIOMEDICAL ENGINEERING ONLINE (2012). |
入库方式： OAI收割
来源：深圳先进技术研究院
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