Journal Article

DCE-MRI for Pre-Treatment Prediction and Post-Treatment Assessment of Treatment Response in Sites of Squamous Cell Carcinoma in the Head and Neck

King, Ann D., Chow, Steven Kwok Keung, Yu, Kwok-Hung, Mo, Frankie Kwok Fai, Law, Benjamin King Hong, Bhatia, Kunwar S., Vlantis, Alexander C., Yeung, David K. W., Yuan, Jing, Ahuja, Anil T.

2015

نظرة عامة

It is important to identify patients with head and neck squamous cell carcinoma (SCC) who fail to respond to chemoradiotherapy so that they can undergo post-treatment salvage surgery while the disease is still operable. This study aimed to determine the diagnostic performance of dynamic contrast enhanced (DCE)-MRI using a pharmacokinetic model for pre-treatment predictive imaging, as well as post-treatment diagnosis, of residual SCC at primary and nodal sites in the head and neck. Forty-nine patients with 83 SCC sites (primary and/or nodal) underwent pre-treatment DCE-MRI, and 43 patients underwent post-treatment DCE-MRI, of which 33 SCC sites had a residual mass amenable to analysis. Pre-treatment, post-treatment and % change in the mean Ktrans, kep, ve and AUGC were obtained from SCC sites. Logistic regression was used to correlate DCE parameters at each SCC site with treatment response at the same site, based on clinical outcome at that site at a minimum of two years. None of the pre-treatment DCE-MRI parameters showed significant correlations with SCC site failure (SF) (29/83 sites) or site control (SC) (54/83 sites). Post-treatment residual masses with SF (14/33) had significantly higher kep (p = 0.05), higher AUGC (p = 0.02), and lower % reduction in AUGC (p = 0.02), than residual masses with SC (19/33), with the % change in AUGC remaining significant on multivariate analysis. Pre-treatment DCE-MRI did not predict which SCC sites would fail treatment, but post-treatment DCE-MRI showed potential for identifying residual masses that had failed treatment.

• الناشر: Public Library of Science,Public Library of Science (PLoS)
• موضوع: Adult / Aged / Aged, 80 and over / Breast cancer / Cancer therapies / Carcinoma, Squamous Cell - diagnosis / Carcinoma, Squamous Cell - surgery / Carcinoma, Squamous Cell - therapy / Care and treatment / Chemoradiotherapy / Chemotherapy / Contrast Media - pharmacokinetics / Diagnostic systems / Female / Follow-Up Studies / Head & neck cancer / Head and neck cancer / Head and Neck Neoplasms - diagnosis / Head and Neck Neoplasms - surgery / Head and Neck Neoplasms - therapy / Human papillomavirus / Humans / Image Enhancement - methods / Magnetic resonance imaging / Magnetic Resonance Imaging - methods / Male / Medical diagnosis / Medical imaging / Medical treatment / Methods / Middle Aged / Multivariate analysis / Neoplasm, Residual - diagnosis / NMR / Nuclear magnetic resonance / Oncology / Otolaryngology / Outcome and process assessment (Medical care) / Outcome Assessment (Health Care) - methods / Parameter estimation / Patient outcomes / Patients / Permeability / Pharmacokinetics / Pharmacology / Postoperative Period / Predictions / Preoperative Period / Prospective Studies / Radiation therapy / Regression analysis / Salvage / Salvage Therapy - methods / Squamous cell carcinoma / Studies / Surgery / Systematic review / Treatment Failure