Searched for: author%3A%22Wieringa%2C+F.P.%22
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Sharma, M.K. (author), Wieringa, F.P. (author), Frijns, A.J.H. (author), Kooman, J.P. (author)
Introduction: End-stage renal disease (ESRD) patients depend on dialysis for removal of toxic waste products, fluid overload relief and maintenance of electrolyte balance. Dialysis prolongs millions of lives. To some extent, ESRD has become a manageable disease with a steadily growing dialysis population of increasing average age and associated...
article 2016
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Schols, R.M. (author), ter Laan, M. (author), Stassen, L.P.S. (author), Bouvy, N.D. (author), Wieringa, F.P. (author), Alic, L. (author)
Intraoperative nerve localization is extremely important during surgery, especially laparoscopy. This is particularly challenging when nerves show visual resemblance to surrounding tissue. An example of such a delicate procedure is thyroid and parathyroid surgery, where iatrogenic injury of the recurrent laryngeal nerve can result in transient...
conference paper 2016
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Tauţan, A.M. (author), Young, A. (author), Wentink, E. (author), Wieringa, F.P. (author)
Methods for analyzing various motion artifacts in photoplethysmography (PPG) signals, recorded by a wristworn device are reported. The analysis looks both at intrinsic PPG signal properties, through standard deviation, skew and kurtosis, but also at its relationship to five possible motion reference signals, through the correlation coefficient...
conference paper 2015
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Wieringa, F.P. (author)
conference paper 2015
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Schols, R.M. (author), Alic, L. (author), Beets, G.L. (author), Breukink, S.O. (author), Wieringa, F.P. (author), Stassen, L.P.S. (author)
In colorectal surgery, detecting ureters and mesenteric arteries is of utmost importance to prevent iatrogenic injury and to facilitate intraoperative decision making. A tool enabling ureter- and artery-specific image enhancement within (and possibly through) surrounding adipose tissue would facilitate this need, especially during laparoscopy....
article 2015
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Schols, R.M. (author), ter Laan, M. (author), Stassen, L.P.S. (author), Bouvy, N.D. (author), Amelink, A. (author), Wieringa, F.P. (author), Alic, L. (author)
Background: Intraoperative nerve localization is of great importance in surgery. In certain procedures, where nerves show visual resemblance to surrounding adipose tissue, this can be particularly challenging for the human eye. An example of such a delicate procedure is thyroid and parathyroid surgery, where iatrogenic injury of the recurrent...
article 2014
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Alamyar, M. (author), Bouma, H. (author), Goossens, W.J.H. (author), Wieringa, F.P. (author), Kroon, B.K. (author), Eendebak, P.T. (author), Wijburg, C.J. (author), Smits, G.A.H.J. (author)
Recently, we have shown that connecting live three-dimensional (3D) monitors to all three available Da Vinci® robot (Intuitive) generations improved the impression of shared perception for the whole surgical team. Standardized dry lab experiments revealed that delicate teamwork was faster (up to 40%) when using the 3D monitor [1]. We now studied...
conference paper 2014
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Wieringa, F.P. (author), Bouma, H. (author), Eendebak, P.T. (author), van Basten, J.P.A. (author), Beerlage, H.P. (author), Smits, G.A.H.J. (author), Bos, J.E. (author)
In comparison to open surgery, endoscopic surgery offers impaired depth perception and narrower field-of-view. To improve depth perception, the Da Vinci robot offers three-dimensional (3-D) video on the console for the surgeon but not for assistants, although both must collaborate. We improved the shared perception of the whole surgical team by...
article 2014
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Schols, R.M. (author), Dunias, P. (author), Wieringa, F.P. (author), Stassen, L.P. (author)
Aims: This study investigated the feasibility of automated differentiation between essential tissue types encountered during laparoscopic colorectal surgery using spectral analysis. Methods: Wide band (440-1830 nm) spectra were collected using an optical fiber probe and spectrometer from freshly explanted, ex vivo, human colonic specimens. These...
article 2013
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Schols, R.M. (author), Wieringa, F.P. (author), Alić, L. (author), Bouvy, N.D. (author), Stassen, L.P.S. (author)
Distinguishing critical tissues can be challenging in (para-)thyroid surgery. As a first step towards intraoperative image contrast enhancement, we collected and analyzed spectral signatures (350-1830nm) of thyroid, parathyroid and recurrent laryngeal nerve in 10 patients.
conference paper 2013
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Tchebotareva, A. (author), Schols, R.M. (author), Wieringa, F.P. (author), Alić, L. (author), Bouvy, N. (author), Stassen, L.P.S. (author), van de Steeg, E. (author), Klomp, D. (author), Baumer, S. (author), Statham, A. (author), Dunias, P. (author)
One of the challenges during surgery is to make a proper distinction between vital tissues, structures and organs, both at the surface of the exposed area and beneath it. Currently, identification of different tissue types relies either on the skills and anatomical knowledge of the surgeon (e.g., nerves, blood vessels, different tissue types),...
conference paper 2013
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Schols, R.M. (author), Alić, L. (author), Beets, G.L. (author), Breukink, S.O. (author), Wieringa, F.P. (author), Stassen, L.P.S. (author)
BACKGROUND: During colorectal surgical dissections, recognizing essential anatomy is crucial to prevent iatrogenic injury. This study builds forth upon previously identified new inherent anatomical spectral contrasts in fresh human colonic samples. AIM: Assessment of optical spectrometry for discriminating critical tissues (colon, adipose tissue...
conference paper 2012
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Smits, G.A.H.J. (author), van der Steen-Banasik, E. (author), Wieringa, F.P. (author)
Using strict criteria, solitary muscle invasive bladder cancer can be managed favorably in a bladder sparing manner with brachytherapy. Hollow catheters for afterloading radiotherapy are placed in the bladder wall. Until now, this is performed by open surgery. We replaced open surgery by laparoscopy (eventually robot assisted).
public lecture 2012
document
Schols, R.M. (author), Bouvy, N.D. (author), Wieringa, F.P. (author), Alić, L. (author), Stassen, L.P.S. (author)
INTRODUCTION: In thyroid and parathyroid surgery iatrogenic injury of the parathyroid glands or the recurrent laryngeal nerve (RLN) is a possible complication that needs to be prevented. The visible contrast between thyroid and parathyroid tissue is delicate to observe. The aim of this pilot study was to collect in vivo spectral reflectance...
conference paper 2012
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Bouma, H. (author), van der Mark, W. (author), Eendebak, P.T. (author), Landsmeer, S. (author), van der Eekeren, A.W.M. (author), ter Haar, F.B. (author), Wieringa, F.P. (author), van Basten, J.P. (author)
Compared to open surgery, minimal invasive surgery offers reduced trauma and faster recovery. However, lack of direct view limits space perception. Stereo-endoscopy improves depth perception, but is still restricted to the direct endoscopic field-of-view. We describe a novel technology that reconstructs 3D-panoramas from endoscopic video streams...
conference paper 2012
document
Wieringa, F.P. (author), Bouma, H. (author), Beerlage, H.P. (author)
Met de intrede van minimaal invasieve chirurgie werd 3D-zicht minder vanzelfsprekend. Daar komt steeds meer verandering in. In de console van de Da Vinci-robot beschikt de chirurg inmiddels over 3D-zicht, maar de operatieassistenten moeten het nog met tweedimensionaal beeld doen. TNO werkt samen met urologen aan beeldtechnologie waarmee de...
article 2012
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Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek (author), Wieringa, F.P (author), van Basten, J.P. (author), van der Mark, W. (author), Bouma, H. (author)
public lecture 2011
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TNO Defensie en Veiligheid (author), Wieringa, F.P. (author), van der Mark, W. (author), Bouma, H. (author), Boetz, H. (author), van Basten, J.P.A. (author)
public lecture 2010
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TNO Industrie en Techniek (author), Wieringa, F.P. (author)
public lecture 2010
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Wieringa, F.P. (author), TNO Industrie en Techniek (author)
At the latest by May 10th 2010, Directive 2006/25/EC regarding the exposure of workers to risks arising from artificial optical radiation must be implemented by all EU-member states, thus legally adopting ICNIRP limit values for ultraviolet, visible and infrared radiation. For IUVA-members the UV-range is most relevant. To prevent acute (skin:...
conference paper 2009
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