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Your search keyword '"Lekkerkerker, Selma J."' showing total 21 results
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21 results on '"Lekkerkerker, Selma J."'

4. Polyp size measurement during colonoscopy using a virtual scale: variability and systematic differences.

Author

van Bokhorst, Querijn N. E., Houwen, Britt B. S. L., Hazewinkel, Yark, van der Vlugt, Manon, Beaumont, Hanneke, Grootjans, Joep, van Tilburg, Arjan, Fockens, Paul, Bossuyt, Patrick M. M., Dekker, Evelien, AdriaanseMarlou P. M.1BastiaansenBarbara A. J.123van BeurdenYvette H.1BronzwaerMaxime E. S.1HensBrecht W. E.1HubersLowiek M.1KramerGem M.1LekkerkerkerSelma J.1MeijerBerrie9PondsFraukje A.1RamsoekhDewkoemar1235, Adriaanse, Marlou P. M., Bastiaansen, Barbara A. J., van Beurden, Yvette H., Bronzwaer, Maxime E. S., Hens, Brecht W. E., Hubers, Lowiek M., Kramer, Gem M., Lekkerkerker, Selma J., and Meijer, Berrie

Subjects
COLON polyps, VIRTUAL colonoscopy, INDIVIDUAL differences, POLYPECTOMY, POLYPS
Abstract

Background Accurate polyp size measurement is important for polyp risk stratification and decision-making regarding polypectomy and surveillance. Recently, a virtual scale (VS) function has been developed that allows polyp size measurement through projection of an adaptive VS onto colorectal polyps during real-time endoscopy. We aimed to evaluate the VS in terms of variability and systematic differences. Methods We conducted a video-based study with 120 colorectal polyps, measured by eight dedicated colorectal gastroenterologists (experts) and nine gastroenterology residents following endoscopy training (trainees). Three endoscopic measurement methods were compared: (1) visual, (2) snare and (3) VS measurement. We evaluated the method-specific variance (as measure of variability) in polyp size measurements and systematic differences between these methods. Results Variance in polyp size measurements was significantly lower for VS measurements compared to visual and snare measurements for both experts (0.52 vs. 1.59 and 1.96, p < 0.001) and trainees (0.59 vs. 2.21 and 2.53, p < 0.001). VS measurement resulted in a higher percentage of polyps assigned to the same size category by all endoscopists compared to visual and snare measurements (experts: 69 % vs. 55 % and 59 %; trainees: 67 % vs. 51 % and 47 %) and reduced the maximum difference between individual endoscopists regarding the percentage of polyps assigned to the ≥ 10 mm size category (experts: 1.7 % vs. 10.0 % and 5.0 %; trainees: 2.5 % vs. 6.7 % and 11.7 %). Systematic differences between methods were < 0.5 mm. Conclusions Use of the VS leads to lower polyp size measurement variability and more uniform polyp sizing by individual endoscopists compared to visual and snare measurements. [ABSTRACT FROM AUTHOR]

Published
2025
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9. Detecting KRAS mutations in pancreatic cystic neoplasms: droplet digital PCR versus targeted next-generation sequencing

Author

van Huijgevoort, Nadine C.M., primary, Halfwerk, Hans B.G., additional, Lekkerkerker, Selma J., additional, Reinten, Roy J., additional, Ramp, Frederique, additional, Fockens, Paul, additional, Besselink, Marc G., additional, Busch, Olivier R., additional, van Noesel, Carel J.M., additional, van de Vijver, Marc J., additional, Verheij, Joanne, additional, van Hooft, Jeanin E., additional, and Dijk, Frederike, additional

Published
2023
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12. Su1347 - The Diagnostic Accuracy of Carcinoembryonic Antigen in Differentiating Mucinous and Non-Mucinous Pancreatic Cystic Neoplasms - A Systematic Review and Individual Patient Data Meta-Analysis

Author

van Huijgevoort, Nadine C.M., primary, Hoogenboom, Sanne A., additional, Lekkerkerker, Selma J., additional, Topazian, Mark, additional, Chandrasekhara, Vinay, additional, Morris-Stiff, Gareth, additional, Al-Haddad, Mohammad A., additional, Oppong, Kofi, additional, Khalid, Asif, additional, Del Chiaro, Marco, additional, Besselink, Marc, additional, and van Hooft, Jeanin E., additional

Published
2018
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14. Clinical outcomes and prevalence of cancer in patients with possible groove pancreatitis

Author

Lekkerkerker, Selma J., Nio, Chung Y., Issa, Yama, Fockens, Paul, Verheij, Joanne, Busch, Olivier R., van Gulik, Thomas M., Rauws, Erik A., Boermeester, Marja A., van Hooft, Jeanin E., Besselink, Marc G., Graduate School, Radiology and Nuclear Medicine, Amsterdam Gastroenterology Endocrinology Metabolism, Cancer Center Amsterdam, Gastroenterology and Hepatology, Pathology, Surgery, and Amsterdam institute for Infection and Immunity

Abstract

Background and Aim: Data on non-surgical treatment of groove pancreatitis (GP) and the risk of cancer are lacking. We aimed to determine the prevalence and predictors of cancer in patients in whom the diagnosis GP was considered, and to evaluate symptom improvement after treatment. Study: Patients referred with possible GP (2001-2014) were retrospectively included. An experienced radiologist reassessed imaging. GP patients received questionnaires evaluating their symptoms. Results: From the 38 possible GP patients, 10 had cancer (26%) and 28 GP (74%). Compared with cancer patients, GP patients more frequently had cysts (2/10 vs. 18/28, P = 0.03), less often jaundice (6/10 vs 3/27, P

Published
2016

18. Tu1659 Forward Viewing EUS Versus Standard Oblique Viewing EUS in the Performance of EUS-Guided Fine Needle Aspiration of Solid Lesions: a Prospective Randomized Controlled Study

Author

Ibrahim, Mostafa, primary, Eisendrath, Pierre, additional, Lekkerkerker, Selma J., additional, Attili, Fabia, additional, Fockens, Paul, additional, Deviere, Jacques, additional, Costamagna, Guido, additional, Van Hooft, Jeanin E., additional, and Larghi, Alberto, additional

Published
2015
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19. Response

Author

Lekkerkerker, Selma J., primary, van der Horst, Astrid, additional, Lens, Eelco, additional, Fajardo, Raquel Dávila, additional, and van Hooft, Jeanin E., additional

Published
2014
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