Contrast-Enhanced MRI Improves Staging Accuracy in Early Rectal Cancer

Colorectal cancer remains a leading cause of oncologic mortality in the United States, though survival rates improve dramatically when the disease is localized at the time of diagnosis [1, 2]. For patients with early-stage rectal lesions, the clinical priority is distinguishing between superficial tumors and those invading the muscularis propria to determine the feasibility of organ-sparing surgery [3, 4]. While endorectal ultrasound and pelvic magnetic resonance imaging are the standard modalities for local staging, their comparative accuracy in identifying the earliest T-stages has remained a subject of clinical debate [5, 6]. Current guidelines emphasize that precise pretreatment evaluation is the cornerstone of personalized surgical planning and long-term recurrence prevention [1, 7]. A recent study evaluates whether integrating specific contrast-enhanced features can improve the diagnostic performance of magnetic resonance imaging beyond these traditional benchmarks.