Role of Recent Advances of Diffusion Weighted MRI in Assessment of Therapeutic Response of Rectal Cancer.

Autor: Mohamed, Yasser Ali, Abo Zeid, Ahmed Abdel Aziz, Azab, Enas Ahmed, ElDin Hussein, Rasha Salah, EL-ELa Hassan, Mona Ahmed Abo
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Zdroj: QJM: An International Journal of Medicine; 2021 Supplement, Vol. 114, pi348-i349, 2p
Abstrakt: Aim of the work: The purpose of this study is to determine the role of DWI-MRI in the pretreatment prediction and early response monitoring to neoadjuvant treatment in rectal cancer. Materials and Methods: The study included 24 patients with pathologically proven cancer rectum and who were subjected to neoadjuvant chemo-radiotherapy. Each patient was imaged twice on an MRI machine; a base line pre neoadjuvant treatment and 8 weeks after finishing the neoadjuvant treatment. We focused on the feasibility of DWI as well as the morphological changes according to size (maximum craniocaudal dimension).Conventional sequences were viewed first to identify the lesion and measure its size (maximum craniocaudal dimension) then DWI images were viewed. The ADC parameter was calculated. Results were compared before and after neoadjuvant therapy. Results: The ADC values before and after NACT were significantly higher in the responder group, suggesting that ADC values might be useful in assessing the good response before surgery. Conclusion: In conclusion, the present study demonstrates that adding DW MR imaging to conventional MR imaging yields better diagnostic accuracy than use of conventional MR imaging alone in the evaluation of treatment response to neoadjuvant CRT in patients with locally advanced rectal cancer. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index