Role of MRI and abbreviated MRI in the evaluation and management of acute pancreatitis: a comprehensive review.

Acute pancreatitis (AP) is one of the most common gastrointestinal emergencies, with pancreatic fluid collection (PFC) representing a frequent complication requiring precise evaluation for optimal management. While computed tomography (CT) remains the most widely utilized radiological investigation, it has limitations in correctly identifying and quantifying solid debris within PFCs and evaluating main pancreatic duct (MPD) integrity. Endoscopic ultrasound (EUS) offers improved visualization but is invasive and operator-dependent. Magnetic resonance imaging (MRI) provides superior characterization of PFCs, allowing excellent visualization of necrotic debris, liquid components, degree of encapsulation, and MPD anatomy without ionizing radiation-making it suitable for repeated evaluations. Abbreviated MRI (AMRI) protocols, involving acquisition of a few selected sequences while maintaining comprehensive evaluation capability, have emerged as promising tools for efficient assessment of AP patients. This review evaluates the utility of MRI and AMRI in characterizing PFCs and its implications for management decisions.