Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/90610

Registo completo
Campo DCValorIdioma
dc.contributor.authorRodrigues, Pedro L.por
dc.contributor.authorMoreira, António H. J.por
dc.contributor.authorRodrigues, Nuno F.por
dc.contributor.authorPinho, A. C. Marquespor
dc.contributor.authorFonseca, Jaime C.por
dc.contributor.authorLima, Estêvão Augusto Rodrigues depor
dc.contributor.authorVilaça, João L.por
dc.date.accessioned2024-04-04T10:07:42Z-
dc.date.available2024-04-04T10:07:42Z-
dc.date.issued2014-
dc.identifier.isbn9780819498298-
dc.identifier.issn0277-786X-
dc.identifier.urihttps://hdl.handle.net/1822/90610-
dc.description.abstractBackground: Precise needle puncture of renal calyces is a challenging and essential step for successful percutaneous nephrolithotomy. This work tests and evaluates, through a clinical trial, a real-time navigation system to plan and guide percutaneous kidney puncture.Methods: A novel system, entitled i3DPuncture, was developed to aid surgeons in establishing the desired puncture site and the best virtual puncture trajectory, by gathering and processing data from a tracked needle with optical passive markers. In order to navigate and superimpose the needle to a preoperative volume, the patient, 3D image data and tracker system were previously registered intraoperatively using seven points that were strategically chosen based on rigid bone structures and nearby kidney area. In addition, relevant anatomical structures for surgical navigation were automatically segmented using a multi-organ segmentation algorithm that clusters volumes based on statistical properties and minimum description length criterion. For each cluster, a rendering transfer function enhanced the visualization of different organs and surrounding tissues.Results: One puncture attempt was sufficient to achieve a successful kidney puncture. The puncture took 265 seconds, and 32 seconds were necessary to plan the puncture trajectory. The virtual puncture path was followed correctively until the needle tip reached the desired kidney calyceal.Conclusions: This new solution provided spatial information regarding the needle inside the body and the possibility to visualize surrounding organs. It may offer a promising and innovative solution for percutaneous punctures.por
dc.description.sponsorship- The authors acknowledge to Foundation for Science and Technology (FCT) - Portugal for the fellowships with references: SFRH/BD/74276/2010.por
dc.language.isoengpor
dc.publisherSociety of Photo-optical Instrumentation Engineers (SPIE)por
dc.relationinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBD%2F74276%2F2010/PTpor
dc.rightsopenAccesspor
dc.subjectGuided surgerypor
dc.subjectPercutaneous puncturepor
dc.subjectMinimal invasive surgerypor
dc.subjectOptical tracking sensorspor
dc.titlePreliminary clinical trial in percutaneous nephrolithotomy using a real-time navigation system for percutaneous kidney accesspor
dc.typeconferencePaperpor
dc.peerreviewedyespor
dc.relation.publisherversionhttps://doi.org/10.1117/12.2043647por
oaire.citationVolume9036por
dc.date.updated2024-04-03T12:18:00Z-
dc.identifier.doi10.1117/12.2043647por
dc.subject.wosScience & Technology-
sdum.export.identifier10285-
sdum.journalProceedings of SPIEpor
sdum.conferencePublicationMedical Imaging 2014: Image-Guided Procedures, Robotic Interventions, and Modelingpor
sdum.bookTitleMedical Imaging 2014: Image-Guided Procedures, Robotic Interventions, and Modelingpor
Aparece nas coleções:CAlg - Artigos em revistas internacionais / Papers in international journals

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
Preliminary clinical trial in PN using a real-time navigation system.pdf388,68 kBAdobe PDFVer/Abrir

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID