Three-dimensional navigated laparoscopic ultrasonography

Harms, Jens; Feußner, H.; Baumgartner, Maximilian; Schneider, Armin; Donhauser, M.; Wessels, G

doi:10.1007/s004640090071

Cited by 47 publications

(15 citation statements)

References 10 publications

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“…In this context, a flexible laparoscopic 2D ultrasound probe is commonly used, and electromagnetic tracking sensors are utilized to reconstruct a 3D volume dataset [43], [123] or even a 4D volume over time [83] from freehand 2D measurements. This volume reconstruction is not required whenever 3D ultrasound transducers are available.…”

Section: Current Approaches For Soft Tissue Navigation In Endoscmentioning

confidence: 99%

Navigation in Endoscopic Soft Tissue Surgery: Perspectives and Limitations

Baumhauer

Feuerstein

Meinzer

et al. 2008

Journal of Endourology

163

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Abstract-Despite rapid developments in the research areas medical imaging, medical image processing and robotics, the use of computer assistance in surgical routine is still limited to diagnostics, surgical planning, and interventions on mostly rigid structures. In order to establish a computer aided workflow from diagnosis to surgical treatment and follow-up, several proposals for computer assisted soft tissue interventions have been made in recent years. By means of different pre-and intraoperative information sources, like surgical plannings, intraoperative imaging, and tracking devices, surgical navigation systems aim at supporting surgeons in localizing anatomical targets, observing critical structures, and sparing healthy tissue. Current research in particular addresses the problem of organ shift and tissue deformation, and obstacles in communication between navigation system and surgeon.In this article, we review computer assisted navigation systems for soft tissue surgery. We concentrate on approaches which can be applied in endoscopic thoracic and abdominal surgery, as endoscopic surgery has special needs for image guidance due to limitations in perception. Furthermore, this article provides the reader with new trends and technologies in the area of computer assisted surgery. Finally, a balancing of key challenges and possible benefits of endoscopic navigation refines the perspectives of this increasingly important discipline of computer aided medical procedures.

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Section: Current Approaches For Soft Tissue Navigation In Endoscmentioning

confidence: 99%

Navigation in Endoscopic Soft Tissue Surgery: Perspectives and Limitations

Baumhauer

Feuerstein

Meinzer

et al. 2008

Journal of Endourology

163

View full text Add to dashboard Cite

show abstract

“…Unfortunately LUS is often difficult to perform, especially for novice surgeons. Therefore several groups tried to support surgeons by providing navigated LUS: The position and orientation ("pose") of the ultrasound transducer is estimated using robot or optical tracking (OT) [1], electromagnetic tracking (EMT) [2][3][4][5], or magneto-optic tracking, i.e. the combination of OT and EMT [6].…”

Section: Introductionmentioning

confidence: 99%

New approaches to online estimation of electromagnetic tracking errors for laparoscopic ultrasonography

Feuerstein

Reichl

Vogel

et al. 2008

Computer Aided Surgery

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Abstract. In abdominal surgery, a laparoscopic ultrasound transducer is commonly used to detect lesions such as metastases. The determination and visualization of position and orientation of its flexible tip in relation to the patient or other surgical instruments can be of great support for surgeons using the transducer intraoperatively. This difficult subject has recently been paid attention to by the scientific community. Electromagnetic tracking systems can be applied to track the flexible tip. However, current limitations of electromagnetic tracking are its accuracy and its sensibility, i.e. the magnetic field can be distorted by ferromagnetic material. This paper presents two novel methods for electromagnetic tracking error estimation. Based on optical tracking of the laparoscope as well as magneto-optic and visual tracking of the transducer, these methods automatically detect in 85 % of all cases, whether tracking is erroneous or not, and reduce tracking errors by up to 2.5 mm.

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“…Despite these advances, surgeons have been slow to adopt laparoscopic US. The major obstacle facing surgeons learning to use laparoscopic US is understanding how the US images are oriented relative to the patient [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

A Navigation System for Augmenting Laparoscopic Ultrasound

Ellsmere¹,

Stoll²,

Rattner³

et al. 2003

Lecture Notes in Computer Science

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Abstract. Establishing image context is the major difficulty of performing laparoscopic ultrasound. The s tandard techniques u sed by transabdominal ultrasonographers to understand image orientation are difficult to apply with laparoscopic instruments. In this paper, we describe a navigation system that displays the position and orientation of laparoscopic ultrasound images to the operating surgeon in real time. The display technique we developed for showing the orientation information uses a 3D model of the aorta as the main visual reference. This technique is helpful because it provides surgeons with important spatial cues, which we show improves their ability to interpret the laparoscopic ultrasound.

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Three-dimensional navigated laparoscopic ultrasonography

Cited by 47 publications

References 10 publications

Navigation in Endoscopic Soft Tissue Surgery: Perspectives and Limitations

Navigation in Endoscopic Soft Tissue Surgery: Perspectives and Limitations

New approaches to online estimation of electromagnetic tracking errors for laparoscopic ultrasonography

A Navigation System for Augmenting Laparoscopic Ultrasound

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