Feasibility and Initial Results of Assisted Ultrasound Scan Acquisition for Improved Tomographic Visualization

Ataide, Elmer Jeto Gomes; Ziegle, Jens; Kalmar, Marco; Rathi, Sanchit; Shukla, Shambhavi; Boese, Axel; Friebe, Michael

doi:10.1109/indicon47234.2019.9030358

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…One such device, the PIUR tUS Infinity (PIUR Imaging, Vienna, Austria), combines data from optical markers, EM sensors, and inertial sensors [ 29 ]. However, preliminary studies have reported drawbacks associated with freehand tUS scans, such as overlapping US slices and the loss of subsurface spatial information due to a change in applied force between the transducer and the skin [ 30 ]. Furthermore, in a clinical setting, metals can affect the accuracy of EM sensors [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Real-Time Multi-Modal Sensing and Feedback for Catheterization in Porcine Tissue

Heunis

Šuligoj

Santos

et al. 2021

Sensors

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Objective: In this study, we introduce a multi-modal sensing and feedback framework aimed at assisting clinicians during endovascular surgeries and catheterization procedures. This framework utilizes state-of-the-art imaging and sensing sub-systems to produce a 3D visualization of an endovascular catheter and surrounding vasculature without the need for intra-operative X-rays. Methods: The catheterization experiments within this study are conducted inside a porcine limb undergoing motions. A hybrid position-force controller of a robotically-actuated ultrasound (US) transducer for uneven porcine tissue surfaces is introduced. The tissue, vasculature, and catheter are visualized by integrated real-time US images, 3D surface imaging, and Fiber Bragg Grating (FBG) sensors. Results: During externally-induced limb motions, the vasculature and catheter can be reliably reconstructed at mean accuracies of 1.9±0.3 mm and 0.82±0.21 mm, respectively. Conclusions: The conventional use of intra-operative X-ray imaging to visualize instruments and vasculature in the human body can be reduced by employing improved diagnostic technologies that do not operate via ionizing radiation or nephrotoxic contrast agents. Significance: The presented multi-modal framework enables the radiation-free and accurate reconstruction of significant tissues and instruments involved in catheterization procedures.

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Section: Introductionmentioning

confidence: 99%

Real-Time Multi-Modal Sensing and Feedback for Catheterization in Porcine Tissue

Heunis

Šuligoj

Santos

et al. 2021

Sensors

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“…Additionally, effects like motion artefacts and overlapping image slices are likely to occur reducing the quality of the 3D volume even further [3]. A possible solution to these problems was proposed in [3] and [4]. Designing assistive devices that guide an US probe and tracking sensor around the neck on a fixed circular path during the scanning process improved the image quality compared to a non-guided freehand scan.…”

Section: Introductionmentioning

confidence: 99%

Novel Assistive Device for Tomographic Ultrasound Neck Imaging vs. Freehand

Köhler

Ataide

Ziegle

et al. 2020

Current Directions in Biomedical Engineering

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For assessing clinically relevant structures in the neck area, especially the thyroid, it has been shown that 3D or tomographic ultrasound (3D US or tUS) is able to outperform standard 2D ultrasound [1] and computed tomography [2] for certain diagnostic procedures. However, when using a freehand and unassisted scanning method to acquire a 3D US volume data set in this area overlapping image slices, a variation of the probe angulation or differences in training might lead to unusable scanning results. Based on previous works [3] [4] we propose the design - with subsequent testing - of an assistive device that is able to aid physicians during the tUS scanning process on the neck. To validate the feasibility and efficacy we compared the image quality of both freehand and assisted scanning.

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“…One such device, the PIUR tUS Infinity (PIUR Imaging, Vienna, Austria), combines data from optical markers, EM sensors, and inertial sensors [261]. However, preliminary studies have reported drawbacks associated with freehand tUS scans, such as overlapping US slices and the loss of subsurface spatial information due to a change in applied force between the transducer and the skin [262]. Furthermore, in a clinical setting, metals can affect the accuracy of EM sensors [91].…”

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confidence: 99%

Advanced robotics for magnetic manipulation : the mobile magnetic vascular surgeon

Heunis¹

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The critical factor of imaging the catheter within an ultrasound-specific patient-oriented approach is then addressed in Chapter 7. Finally, in Chapter 8, a catheterization to treat a simulated Peripheral Artery Disease (PAD) is demonstrated. Here, the performance and clinical feasibility of a novel magnetically-actuated catheter are tested inside the ARMM system.Finally, in Part IV, the range of surgical applications for the ARMM system is discussed, overall conclusions are drawn, and directions for future work are provided. The ARMM system's key strengths are its large operable workspace, consistent visual tracking, and collaborative control of robots capable of reaching any patient extremity. The proposed electromagnetic coil can magnetically steer a range of endovascular catheters with high positioning accuracies and can provide feedback of catheters in the human body with sub-millimeter precision. Furthermore, the ARMM workstation is separated from radiation, making it a safe alternative to X-ray fluoroscopy. The clinical relevance of the ARMM system is clearly supported by the current findings and the evidence from this dissertation suggests that it can be successfully deployed in future clinical practice. There is significant potential to contribute to improving patient care, benefit the next generation of vascular surgeons, and increase the efficiency of clinicians.

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Feasibility and Initial Results of Assisted Ultrasound Scan Acquisition for Improved Tomographic Visualization

Cited by 3 publications

References 10 publications

Real-Time Multi-Modal Sensing and Feedback for Catheterization in Porcine Tissue

Real-Time Multi-Modal Sensing and Feedback for Catheterization in Porcine Tissue

Novel Assistive Device for Tomographic Ultrasound Neck Imaging vs. Freehand

Advanced robotics for magnetic manipulation : the mobile magnetic vascular surgeon

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