Background: The goals of neoadjuvant chemotherapy (NAC) are to reduce tumor volume and to offer a prognostic indicator in assessing treatment response. Contrast-enhanced magnetic resonance imaging (CE-MRI) is an established method for evaluating response to NAC in patients with breast cancer. Purpose: To validate the role of unenhanced MRI (ue-MRI) compared to CE-MRI for assessing response to NAC in women with breast cancer. Material and Methods: Seventy-one patients with ongoing NAC for breast cancer underwent MRI before, during, and at the end of NAC. Ue-MRI was performed with T2-weighted sequences with iterative decomposition of water and fat and diffusion-weighted sequences. CE-MRI was performed using three-dimensional T1-weighted sequences before and after administration of gadobenate dimeglumine. Two blinded observers rated ue-MRI and CE-MRI for the evaluation of tumor response. Statistical analysis was performed to compare lesion size and ADC values changes during therapy, as well as inter-observer agreement. Results: There were no statistically significant differences between ue-MRI and CE-MRI sequences for evaluation of lesion size at baseline and after every cycle of treatment (P > 0.05). The mean tumor ADC values at baseline and across the cycles of NAC were significantly different for the responder group. Conclusion: Ue-MRI can achieve similar results to CE-MRI for the assessment of tumor response to NAC. ADC values can differentiate responders from non-responders.

Can unenhanced MRI of the breast replace contrast-enhanced MRI in assessing response to neoadjuvant chemotherapy? / Cavallo Marincola B.; Telesca M.; Zaccagna F.; Riemer F.; Anzidei M.; Catalano C.; Pediconi F.. - In: ACTA RADIOLOGICA. - ISSN 0284-1851. - STAMPA. - 60:1(2019), pp. 35-44. [10.1177/0284185118773512]

Can unenhanced MRI of the breast replace contrast-enhanced MRI in assessing response to neoadjuvant chemotherapy?

Zaccagna F.;
2019

Abstract

Background: The goals of neoadjuvant chemotherapy (NAC) are to reduce tumor volume and to offer a prognostic indicator in assessing treatment response. Contrast-enhanced magnetic resonance imaging (CE-MRI) is an established method for evaluating response to NAC in patients with breast cancer. Purpose: To validate the role of unenhanced MRI (ue-MRI) compared to CE-MRI for assessing response to NAC in women with breast cancer. Material and Methods: Seventy-one patients with ongoing NAC for breast cancer underwent MRI before, during, and at the end of NAC. Ue-MRI was performed with T2-weighted sequences with iterative decomposition of water and fat and diffusion-weighted sequences. CE-MRI was performed using three-dimensional T1-weighted sequences before and after administration of gadobenate dimeglumine. Two blinded observers rated ue-MRI and CE-MRI for the evaluation of tumor response. Statistical analysis was performed to compare lesion size and ADC values changes during therapy, as well as inter-observer agreement. Results: There were no statistically significant differences between ue-MRI and CE-MRI sequences for evaluation of lesion size at baseline and after every cycle of treatment (P > 0.05). The mean tumor ADC values at baseline and across the cycles of NAC were significantly different for the responder group. Conclusion: Ue-MRI can achieve similar results to CE-MRI for the assessment of tumor response to NAC. ADC values can differentiate responders from non-responders.
2019
Can unenhanced MRI of the breast replace contrast-enhanced MRI in assessing response to neoadjuvant chemotherapy? / Cavallo Marincola B.; Telesca M.; Zaccagna F.; Riemer F.; Anzidei M.; Catalano C.; Pediconi F.. - In: ACTA RADIOLOGICA. - ISSN 0284-1851. - STAMPA. - 60:1(2019), pp. 35-44. [10.1177/0284185118773512]
Cavallo Marincola B.; Telesca M.; Zaccagna F.; Riemer F.; Anzidei M.; Catalano C.; Pediconi F.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/871258
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