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L\u2019objectif était d\u2019évaluer rétrospectivement les performances de l\u2019IRM 3T pour la détection des foyers tumoraux chez des patients traités par prostatectomies radicales (PR) au CHRU de Tours. Méthodes : les patients traités par PR pour un CaP avant novembre 2018 et ayant eu une IRM prostatique 3T préopératoire ont été inclus. Les IRM ont été relues, avec attribution d\u2019un score de suspicion PI-RADS v2.1 à chaque foyer identifié. En histologie, les foyers tumoraux significatifs (≥ 5 mm) ont été localisés selon la cartographie IRM. La sensibilité, la valeur prédictive positive (VPP) et la valeur prédictive négative (VPN) ont été calculées, et corrélées avec le score ISUP, le pTNM, la taille et la localisation des foyers tumoraux. Résultats : 39 patients avec 89 foyers tumoraux significatifs ont été analysés. La proportion de patients dont un des foyers a été détecté par l\u2019IRM est de 92 %, et la proportion de foyers tumoraux correctement identifiés par l\u2019IRM est de 54 %. La VPP des foyers PI-RADS ≥ 3 est de 94%, la VPN des foyers PI-RADS ≤ 2 de 82 %. Le taux de foyers tumoraux identifiés par l\u2019IRM augmente avec l\u2019ISUP, le pTNM du foyer et sa taille (p<0,0001). Les foyers de localisation antérieure ont une performance IRM plus basse (p=0,005). Conclusion : une IRM anormale est hautement prédictive d'un CaP, et la détection des foyers tumoraux augmente avec la taille et l\u2019agressivité de la tumeur. Cependant, l'IRM ne détecte que la moitié des foyers tumoraux significatifs, avec des limites concernant les foyers ISUP 1, de moins de 1 cm et de localisation antérieure."}],"tag":300},{"ind2":0,"ind1":" ","subfield":[{"code":"b","content":"Thèse d'exercice"},{"code":"c","content":"Médecine"},{"code":"e","content":"Tours"},{"code":"d","content":2020}],"tag":328},{"ind2":1,"ind1":" ","subfield":[{"code":3,"content":255709889},{"code":7,"content":"ba0yba05"},{"code":"a","content":"El Gani"},{"code":"b","content":"Myriam"},{"code":"f","content":"1991-...."},{"code":4,"content":"070"}],"tag":501},{"ind2":1,"ind1":" ","subfield":[{"code":3,"content":"03205341X"},{"code":7,"content":"ba0yba05"},{"code":"a","content":"Fromont-Hankard"},{"code":"b","content":"Gaëlle"},{"code":"f","content":"1962-...."},{"code":4,"content":727}],"tag":501},{"ind2":1,"ind1":" ","subfield":[{"code":3,"content":"057611432"},{"code":7,"content":"ba0yba05"},{"code":"a","content":"Brunereau"},{"code":"b","content":"Laurent"},{"code":"f","content":"1964-...."},{"code":4,"content":956}],"tag":501},{"ind2":1,"ind1":" ","subfield":[{"code":3,"content":"092156630"},{"code":7,"content":"ba0yba05"},{"code":"a","content":"Guyétant"},{"code":"b","content":"Serge"},{"code":4,"content":555}],"tag":501},{"ind2":1,"ind1":" ","subfield":[{"code":3,"content":"050806009"},{"code":7,"content":"ba0yba05"},{"code":"a","content":"Bruyère"},{"code":"b","content":"Franck"},{"code":"f","content":"1970-...."},{"code":4,"content":555}],"tag":501},{"ind2":1,"ind1":" ","subfield":[{"code":3,"content":"069631301"},{"code":7,"content":"ba0yba05"},{"code":"a","content":"Bleuzen"},{"code":"b","content":"Aurore"},{"code":"f","content":"1971-...."},{"code":4,"content":555}],"tag":501},{"ind2":1,"ind1":" ","subfield":[{"code":3,"content":"059781343"},{"code":7,"content":"ba0yba05"},{"code":"a","content":"Michenet"},{"code":"b","content":"Patrick"},{"code":"f","content":"19..-...."},{"code":4,"content":555}],"tag":501},{"ind2":2,"ind1":0,"subfield":[{"code":3,"content":"026404478"},{"code":7,"content":"ba0yba05"},{"code":"a","content":"Université de Tours"},{"code":"c","content":"1971-...."},{"code":4,"content":295}],"tag":511},{"ind2":2,"ind1":0,"subfield":[{"code":3,"content":"083328904"},{"code":7,"content":"ba0yba05"},{"code":"a","content":"Université de Tours"},{"code":"b","content":"UFR de médecine"},{"code":4,"content":295}],"tag":511},{"ind2":" ","ind1":" ","subfield":[{"code":3,"content":"027256871"},{"code":"a","content":"Prostate"},{"code":"x","content":"Cancer"},{"code":3,"content":"028921011"},{"code":"x","content":"Imagerie par résonance magnétique"},{"code":2,"content":"rameau"}],"tag":606},{"ind2":" ","ind1":" ","subfield":[{"code":3,"content":"029810213"},{"code":"a","content":"Prostatectomie"},{"code":2,"content":"rameau"}],"tag":606},{"ind2":" ","ind1":" ","subfield":[{"code":7,"content":"ba0yba0"},{"code":3,"content":"027253139"},{"code":"a","content":"Thèses et écrits académiques"},{"code":2,"content":"rameau"}],"tag":608},{"ind2":3,"ind1":" ","subfield":[{"code":"a","content":"FR"},{"code":"b","content":"Abes"},{"code":"c","content":20250419},{"code":"g","content":"AFNOR"}],"tag":801}],"controlfield":[{"tag":"001","content":256439893},{"tag":"003","content":"http://www.idref.fr/256439893"},{"tag":"004","content":20210707},{"tag":"005","content":20250419015453},{"tag":"006","content":"0499"},{"tag":"007","content":"0499"},{"tag":"008","content":"Tr2"}]}}