OBJECTIVE: To explore whether pre-reoperative dynamic contrast-enhanced (DCE)-MRI findings correlate with clinical outcome in patients who undergo surgical treatment for recurrent rectal carcinoma. METHODS: A retrospective study of DCE-MRI in patients with recurrent rectal cancer was performed after obtaining an IRB waiver. We queried our PACS from 1998 to 2012 for examinations performed for recurrent disease. Two radiologists in consensus outlined tumour regions of interest on perfusion images. We explored the correlation between K(trans), Kep, Ve, AUC90 and AUC180 with time to re-recurrence of tumour, overall survival and resection margin status. Univariate Cox PH models were used for survival, while univariate logistic regression was used for margin status. RESULTS: Among 58 patients with pre-treatment DCE-MRI who underwent resection, 36 went directly to surgery and 18 had positive margins. K(trans) (0.55, P = 0.012) and Kep (0.93, P = 0.04) were inversely correlated with positive margins. No significant correlations were noted between K(trans), Kep, Ve, AUC90 and AUC180 and overall survival or time to re-recurrence of tumour. CONCLUSION: K(trans) and Kep were significantly associated with clear resection margins; however overall survival and time to re-recurrence were not predicted. Such information might be helpful for treatment individualisation and deserves further investigation.
OBJECTIVE: To explore whether pre-reoperative dynamic contrast-enhanced (DCE)-MRI findings correlate with clinical outcome in patients who undergo surgical treatment for recurrent rectal carcinoma. METHODS: A retrospective study of DCE-MRI in patients with recurrent rectal cancer was performed after obtaining an IRB waiver. We queried our PACS from 1998 to 2012 for examinations performed for recurrent disease. Two radiologists in consensus outlined tumour regions of interest on perfusion images. We explored the correlation between K(trans), Kep, Ve, AUC90 and AUC180 with time to re-recurrence of tumour, overall survival and resection margin status. Univariate Cox PH models were used for survival, while univariate logistic regression was used for margin status. RESULTS: Among 58 patients with pre-treatment DCE-MRI who underwent resection, 36 went directly to surgery and 18 had positive margins. K(trans) (0.55, P = 0.012) and Kep (0.93, P = 0.04) were inversely correlated with positive margins. No significant correlations were noted between K(trans), Kep, Ve, AUC90 and AUC180 and overall survival or time to re-recurrence of tumour. CONCLUSION: K(trans) and Kep were significantly associated with clear resection margins; however overall survival and time to re-recurrence were not predicted. Such information might be helpful for treatment individualisation and deserves further investigation.
Authors: Carlo Capirci; Vincenzo Valentini; Luca Cionini; Antonino De Paoli; Claus Rodel; Robert Glynne-Jones; Claudio Coco; Mario Romano; Giovanna Mantello; Silvia Palazzi; Falchetti Osti Mattia; Maria Luisa Friso; Domenico Genovesi; Cristiana Vidali; Maria Antonietta Gambacorta; Alberto Buffoli; Marco Lupattelli; Maria Silvia Favretto; Giuseppe La Torre Journal: Int J Radiat Oncol Biol Phys Date: 2008-04-11 Impact factor: 7.038
Authors: Dushyant V Sahani; Sanjeeva P Kalva; Leena M Hamberg; Peter F Hahn; Christopher G Willett; Sanjay Saini; Peter R Mueller; Ting-Yim Lee Journal: Radiology Date: 2005-03 Impact factor: 11.105
Authors: Leonard R Henry; Elin Sigurdson; Eric A Ross; John S Lee; James C Watson; Jonathan D Cheng; Gary M Freedman; Andre Konski; John P Hoffman Journal: Ann Surg Oncol Date: 2007-07 Impact factor: 5.344
Authors: A F Devries; J Griebel; C Kremser; W Judmaier; T Gneiting; A Kreczy; D Ofner; K P Pfeiffer; G Brix; P Lukas Journal: Cancer Res Date: 2001-03-15 Impact factor: 12.701
Authors: M Kusters; C A M Marijnen; C J H van de Velde; H J T Rutten; M J Lahaye; J H Kim; R G H Beets-Tan; G L Beets Journal: Eur J Surg Oncol Date: 2010-01-21 Impact factor: 4.424
Authors: Roberto García-Figueiras; Sandra Baleato-González; Anwar R Padhani; Ana Marhuenda; Antonio Luna; Lidia Alcalá; Ana Carballo-Castro; Ana Álvarez-Castro Journal: Insights Imaging Date: 2016-04-30