?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Deep+Placental+Vessel+Segmentation+for+Fetoscopic+Mosaicking&rft.creator=Bano%2C+S&rft.creator=Vasconcelos%2C+F&rft.creator=Shepherd%2C+LM&rft.creator=Vander+Poorten%2C+E&rft.creator=Vercauteren%2C+T&rft.creator=Ourselin%2C+S&rft.creator=David%2C+AL&rft.creator=Deprest%2C+J&rft.creator=Stoyanov%2C+D&rft.description=During+fetoscopic+laser+photocoagulation%2C+a+treatment+for+twin-to-twin+transfusion+syndrome+(TTTS)%2C+the+clinician+first+identifies+abnormal+placental+vascular+connections+and+laser+ablates+them+to+regulate+blood+flow+in+both+fetuses.+The+procedure+is+challenging+due+to+the+mobility+of+the+environment%2C+poor+visibility+in+amniotic+fluid%2C+occasional+bleeding%2C+and+limitations+in+the+fetoscopic+field-of-view+and+image+quality.+Ideally%2C+anastomotic+placental+vessels+would+be+automatically+identified%2C+segmented+and+registered+to+create+expanded+vessel+maps+to+guide+laser+ablation%2C+however%2C+such+methods+have+yet+to+be+clinically+adopted.+We+propose+a+solution+utilising+the+U-Net+architecture+for+performing+placental+vessel+segmentation+in+fetoscopic+videos.+The+obtained+vessel+probability+maps+provide+sufficient+cues+for+mosaicking+alignment+by+registering+consecutive+vessel+maps+using+the+direct+intensity-based+technique.+Experiments+on+6+different+in+vivo+fetoscopic+videos+demonstrate+that+the+vessel+intensity-based+registration+outperformed+image+intensity-based+registration+approaches+showing+better+robustness+in+qualitative+and+quantitative+comparison.+We+additionally+reduce+drift+accumulation+to+negligible+even+for+sequences+with+up+to+400+frames+and+we+incorporate+a+scheme+for+quantifying+drift+error+in+the+absence+of+the+ground-truth.+Our+paper+provides+a+benchmark+for+fetoscopy+placental+vessel+segmentation+and+registration+by+contributing+the+first+in+vivo+vessel+segmentation+and+fetoscopic+videos+dataset.&rft.subject=Fetoscopy%0D%0A%C2%B7+Deep+learning%0D%0A%C2%B7+Vessel+segmentation%0D%0A%C2%B7+Vessel%0D%0Aregistration%0D%0A%C2%B7+Mosaicking%0D%0A%C2%B7+Twin-to-twin+transfusion+syndrome&rft.publisher=Springer&rft.contributor=Martel%2C+A&rft.contributor=Abolmaesumi%2C+P&rft.contributor=Stoyanov%2C+D&rft.contributor=Mateus%2C+D&rft.contributor=Zuluaga%2C+M&rft.contributor=Zhou%2C+SK&rft.contributor=Racoceanu%2C+D&rft.contributor=Joskowicz%2C+L&rft.date=2020-09-29&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A+Martel%2C+A+and+Abolmaesumi%2C+P+and+Stoyanov%2C+D+and+Mateus%2C+D+and+Zuluaga%2C+M+and+Zhou%2C+SK+and+Racoceanu%2C+D+and+Joskowicz%2C+L%2C+(eds.)+Medical+Image+Computing+and+Computer+Assisted+Intervention+%E2%80%93+MICCAI+2020.++(pp.+pp.+763-773).++Springer%3A+Lima%2C+Peru.+(2020)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10107230%2F1%2F2007.04349v1.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10107230%2F&rft.rights=open