?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Predicci%C3%B3n+del+tiempo+de+supervivencia+de+pacientes+con+c%C3%A1ncer+de+pulm%C3%B3n+mediante+an%C3%A1lisis+radi%C3%B3mico&rft.creator=Tejedor+Delso%2C+Sandra&rft.contributor=Gonzalo+Mart%C3%ADn%2C+Consuelo&rft.subject=Computer+Science&rft.subject=Medicine&rft.description=Actualmente%2C+las+herramientas+para+predecir+la+supervivencia+de+los+pacientes+con+c%C3%A1ncer+de+pulm%C3%B3n+de+c%C3%A9lulas+no+peque%C3%B1as+(CPCNP)+se+basan+%C3%BAnicamente+en+la+informaci%C3%B3n+cl%C3%ADnica+y+de+estadificaci%C3%B3n.+A+lo+largo+de+este+documento%2C+se+analizar%C3%A1+una+serie+de+caracter%C3%ADsticas+extra%C3%ADdas+a+partir+de+las+im%C3%A1genes+de+tomograf%C3%ADa+computarizada+(TC)+y+as%C3%AD+estudiar+si+se+pueden+utilizar+estas+caracter%C3%ADsticas+como+biomarcadores+que+pronostiquen+la+supervivencia+o+que+predigan+el+c%C3%A1ncer+con+antelaci%C3%B3n.+Los+an%C3%A1lisis+que+se+realizar%C3%A1n+a+lo+largo+del+estudio+ser%C3%A1n+a+partir+de+24+caracter%C3%ADsticas+que+hemos+extra%C3%ADdo+y+la+edad+de+los+pacientes+para+el+subgrupo+de+CPCNP+al+que+pertenezcan.+Se+har%C3%A1n+3+an%C3%A1lisis+diferentes+para+evaluar+la+utilidad+de+estas+caracter%C3%ADsticas+radiol%C3%B3gicas.+El+primer+estudio+se+basar%C3%A1+en+la+correlaci%C3%B3n+de+rango+de+Spearman+para+identificar+qu%C3%A9+caracter%C3%ADsticas+se+correlacionan+con+la+supervivencia+de+los+pacientes.+Gracias+a+la+correcci%C3%B3n+de+Holm-Bonferroni+se+obtendr%C3%A1n+los+resultados+significativos+con+valores+menores+a+P%3C0%2C05.+Seguidamente%2C+se+realizar%C3%A1+un+an%C3%A1lisis+de+supervivencia+basado+en+el+estimador+de+Kaplan-Meier+y+la+prueba+log-rank+para+encontrar+caracter%C3%ADsticas+que+conduzcan+a+curvas+de+supervivencia+significativas.+Por+%C3%BAltimo%2C+se+mostrar%C3%A1n+las+curvas+de+ROC+medias+y+los+valores+de+AUC+obtenidos+por+los+modelos+de+Random+Forest+para+predecir+el+resultado+de+supervivencia+de+los+pacientes+sobre+los+subgrupos+de+CPCNP%2C+que+en+los+an%C3%A1lisis+anteriores+han+sido+significativos.--ABSTRACT--To+this+day%2C+prognostic+approach+to+non-small+cells+lung+cancer+(NSCLC)+is+based+on+clinical+information+and+staging.+In+this+paper%2C+several+items+from+computerized+tomography+(CT)+scan+images+will+be+analyzed+in+order+to+study+their+use+as+prognostic+biomarkers+in+survival+or+cancer+prediction.+Through+this+work+24+features+will+be+studied+upon+age+and+NSCLC+subgroup.+Therefore%2C+three+different+analysis+will+be+run+to+evaluate+the+utility+of+different+radiologic+characteristics.+The+first+study+uses+Spearman+rank+correlation+to+identify+the+items+that+do+relate+to+the+patient%E2%80%99s+survival+rate.+Due+to+Holm-Bonferroni+method%2C+significance+is+reached+with+P%3C0%2C05+values.+Afterwards%2C+a+survival+analysis+based+on+Kaplan-Meier+estimator+and+log-rank+test+will+be+run+so+as+to+find+which+items+lead+to+significance+in+survival+rates.+Finally%2C+ROC+mean+values+and+AUC+values+are+obtained+through+Random+Forest+models+in+order+to+predict+survival+results+among+those+NSCLC+subgroups+in+which+previous+analysis+have+shown+significance.&rft.publisher=E.T.S.+de+Ingenieros+Inform%C3%83%C2%A1ticos+(UPM)&rft.rights=https%3A%2F%2Fcreativecommons.org%2Flicenses%2Fby-nc-nd%2F3.0%2Fes%2F&rft.date=2018-01&rft.type=info%3Aeu-repo%2Fsemantics%2FbachelorThesis&rft.type=Final+Project&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=spa&rft.rights=info%3Aeu-repo%2Fsemantics%2FopenAccess&rft.identifier=https%3A%2F%2Foa.upm.es%2F54335%2F