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Fast MR imaging for evaluating the pancreaticobiliary system.

¹Department of Radiology, Hamamatsu University School of Medicine, Japan. takehara@hama-med.ac.jp

European Journal of Radiology

|July 10, 1999

Summary

Fast MRI techniques now enable detailed imaging of abdominal organs, transforming physiological motion from a challenge into valuable diagnostic information for pancreaticobiliary pathologies.

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Area of Science:

Radiology
Medical Imaging
Gastroenterology

Background:

Clinical Magnetic Resonance Imaging (MRI) of abdominal organs faced challenges due to physiological movement.
Advancements in hardware (high-performance gradients, phased-array coils) and software (fast imaging sequences) have overcome these limitations.

Purpose of the Study:

To review current fast MRI technologies for diagnosing pancreaticobiliary pathologies.
To highlight the functional and physiological aspects of anatomy revealed by these advanced MRI techniques.

Main Methods:

Utilized rapid MRI sequences like fast spoiled gradient recalled acquisition in the steady state (GRASS), single-shot fast spin echo (SSFSE), and echo-planar imaging (EPI).
Incorporated breath-hold imaging and semi-fluoroscopic kinematic imaging.

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Employed secretin-enhanced Magnetic Resonance Cholangiopancreatography (MRCP) combined with kinematic imaging.

Main Results:

Significantly reduced scan times, making breath-hold imaging clinically feasible.
Transformed physiological motion, previously a hindrance, into a source of diagnostic information.
Demonstrated improved image quality and enhanced visualization of pancreaticobiliary anatomy and function.

Conclusions:

Fast MRI technologies, particularly secretin-enhanced MRCP with kinematic imaging, are powerful tools for evaluating pancreaticobiliary pathologies.
These techniques leverage physiological motion for improved diagnostic insights.
The review underscores the clinical viability and diagnostic potential of advanced MRI in abdominal imaging.