Multicenter evaluation of a new laser guidance system for computed tomography intervention

Brabrand, Knut; Aaløkken, Trond Mogens; Krombach, Gabriele A.; Günther, Rolf W.; Tariq, Raseen; Magnusson, Anders; Lindgren, P. G.

doi:10.1080/02841850410005039

Cited by 16 publications

(11 citation statements)

References 14 publications

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“…A review of new targeting systems is beyond the scope of this article; however, advanced targeting techniques are being developed for CT, US, and MR imaging (155)(156)(157)(158)(159)(160)(161). Improvements in the ability to better characterize tissue specimens are also on the horizon.…”

Section: Future Considerations and Research Directivesmentioning

confidence: 97%

Renal Masses in the Adult Patient: The Role of Percutaneous Biopsy

Silverman¹,

Gan²,

Mortelé³

et al. 2006

Radiology

275

153

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Although percutaneous renal mass biopsy with cross-sectional imaging guidance has long been considered to be safe and accurate, there have been recent advances in imaging, interventional, and cytologic techniques that have increased the role of percutaneous biopsy in the diagnosis of renal masses. Today, biopsy plays a fundamental role in the care of patients with a renal mass. Biopsy results are used to confirm the diagnosis of renal cancers, metastases, and infections, and there is increasing evidence to suggest that biopsy can help subtype and grade many primary renal cancers. Because a considerable fraction of small solid renal masses are benign and do not need treatment, there is an increasing need to diagnose them. Biopsy after a full imaging work-up can help prevent unnecessary and potentially morbid surgical and ablation procedures in a substantial number of patients. Although more data are needed to understand the overall accuracy of biopsy for the diagnosis of benign lesions, many can be diagnosed with the aid of biopsy findings. This article reviews reported experience with percutaneous renal mass biopsy, discusses the technical factors that contribute to results, and details seven specific clinical settings that should prompt the clinician to consider percutaneous biopsy when encountering a renal mass.

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Section: Future Considerations and Research Directivesmentioning

confidence: 97%

Renal Masses in the Adult Patient: The Role of Percutaneous Biopsy

Silverman¹,

Gan²,

Mortelé³

et al. 2006

Radiology

275

153

View full text Add to dashboard Cite

show abstract

“…B CT image of needle puncturing the lung nodule 1 Th11 17 15 6 2 L1 40 8 0 3 L1 33 7 3 4 L1 30 9 3 5 L1 35 0 3 6 Th10 35 15 0 7 Th12 29 9 3 8 L2 30 7 0 9 Th12 32 3 3 10 L2 28 4 0 eles et al in 1997, 11 Ishizaki et al in 1998, 12 and Brabrand et al in 2004. 13 Miaux et al and Ishizaki et al developed a device to perform punctures by attaching the laserguided puncture system to the gantry. However, we speculate that the device can get in the way of the gantry when the radiologist advances a puncture needle.…”

Section: Discussionmentioning

confidence: 99%

Laser-guided computed tomography puncture system: simulation experiments using artificial phantom lesions and preliminary clinical experience

et al. 2007

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“…Prior evaluations of other laser-guidance systems for CT interventions reported that the usefulness of the guidance device was dependent on the level of experience of the individual physician [39], [40]. Hereby, especially beginners profited by laser guidance systems for standard procedures while experienced interventionalists gained technical help in complex cases.…”

Section: Discussionmentioning

confidence: 99%

Laser-Guided Cervical Selective Nerve Root Block with the Dyna-CT: Initial Experience of Three-Dimensional Puncture Planning with an Ex-Vivo Model

Freundt

Ritter²,

Al-Zghloul³

et al. 2013

PLoS ONE

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BackgroundCervical selective nerve root block (CSNRB) is a well-established, minimally invasive procedure to treat radicular cervical pain. However, the procedure is technically challenging and might lead to major complications. The objective of this study was to evaluate the feasibility of a three-dimensional puncture planning and two-dimensional laser-guidance system for CSNRB in an ex-vivo model.MethodsDyna-CT of the cervical spine of an ex-vivo lamb model was performed with the Artis Zee® Ceiling (Siemens Medical Solutions, Erlangen, Germany) to acquire multiplanar reconstruction images. 15 cervical nerve root punctures were planned and conducted with the syngo iGuide® laser-guidance system. Needle tip location and contrast dye distribution were analyzed by two independent investigators. Procedural, planning, and fluoroscopic time, tract length, and dose area product (DAP) were acquired for each puncture.ResultsAll 15 punctures were rated as successful with 12 punctures on the first attempt. Total procedural time was approximately 5 minutes. Mean planning time for the puncture was 2.03 (±0.39) min. Mean puncture time was 2.16 (±0.32) min, while mean fluoroscopy time was 0.17 (±0.06) min. Mean tract length was 2.68 (±0.23) cm. Mean total DAP was 397.45 (±15.63) µGy m2.ConclusionCSNRB performed with Dyna-CT and the tested laser guidance system is feasible. 3D pre-puncture planning is easy and fast and the laser-guiding system ensures very accurate and intuitive puncture control.

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Multicenter evaluation of a new laser guidance system for computed tomography intervention

Abstract: Different users at four different centers found the laser guidance system useful and easy to use. A high level of accuracy of the puncture angle was obtained in most cases.

Cited by 16 publications

References 14 publications

Renal Masses in the Adult Patient: The Role of Percutaneous Biopsy

Renal Masses in the Adult Patient: The Role of Percutaneous Biopsy

Laser-guided computed tomography puncture system: simulation experiments using artificial phantom lesions and preliminary clinical experience

Laser-Guided Cervical Selective Nerve Root Block with the Dyna-CT: Initial Experience of Three-Dimensional Puncture Planning with an Ex-Vivo Model

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