Quantitative dynamic contrast-enhanced magnetic resonance imaging for early assessment of treatment response in pancreatic ductal adenocarcinoma - Report - MDSpire
Dynamic contrast-enhanced MRI for early evaluation of therapeutic response in pancreatic ductal adenocarcinoma
Overview
This study investigates the utility of dynamic contrast-enhanced MRI (DCE-MRI) in assessing early treatment response in pancreatic ductal adenocarcinoma (PDAC). The use of a portable perfusion phantom (P4) significantly improved the reproducibility of DCE-MRI measurements, allowing for better differentiation between responders and non-responders to chemotherapy.
Background
Pancreatic ductal adenocarcinoma (PDAC) has a low five-year survival rate, primarily due to late diagnosis and limited treatment options. Early detection of treatment response is crucial for optimizing therapeutic strategies. Traditional imaging methods often fail to capture early biological changes, necessitating the exploration of advanced imaging techniques like DCE-MRI.
Data Highlights
Parameter
Before Treatment
After Treatment
Ktrans (ICC)
0.39
0.98
Key Findings
DCE-MRI can evaluate early treatment response in PDAC by measuring tissue perfusion.
The P4 phantom corrects for inter- and intra-scanner variability, enhancing measurement accuracy.
In a pilot study, P4-corrected Ktrans changes distinguished responders from non-responders more effectively than RECIST criteria.
34 subjects completed follow-up imaging, with significant improvements in reproducibility of DCE-MRI measurements.
Standard imaging methods often overlook early biological alterations in PDAC.
Clinical Implications
DCE-MRI, particularly with P4 correction, may serve as a more sensitive method for early evaluation of treatment response in PDAC.
Conclusion
DCE-MRI, enhanced by the use of a portable perfusion phantom, may be effective in early detection of treatment response in PDAC.
by Martin D. Holland, Ezinwanne E. Onuoha, Darryl Outlaw, Mehmet Akce, Midhun Malla, Salila Hashmi, Sushanth Reddy, J. Bart Rose, Desiree E. Morgan, Grant R. Williams, Moh’d Khushman, Dana B. Cardin, Katherine Frederick-Dyer, Xiaoyu Jiang, Zarine K. Shah, Bassel El-Rayes, Junzhong Xu, Harrison Kim
