Magnetic Resonance Imaging Examination Duration

The time required for a magnetic resonance imaging (MRI) examination is highly variable, depending on several factors.

Factors Influencing Scan Duration

• Body Part Imaged: Examinations of smaller areas, such as a wrist or ankle, typically require less time than those of larger areas, such as the spine or entire abdomen.
• Imaging Sequence Complexity: The specific MRI protocols used by the radiologist dictate the number and type of image sequences acquired. More complex protocols, including those employing advanced techniques like diffusion-weighted imaging (DWI) or perfusion imaging, extend the examination duration.
• Patient Cooperation: Maintaining stillness during the procedure is crucial for high-quality images. Patient movement can necessitate repetition of image sequences, thus increasing the overall time.
• MRI Scanner Technology: Newer MRI scanners often incorporate faster imaging techniques, potentially reducing examination time compared to older models.
• Additional Procedures: The inclusion of contrast agents, which requires additional time for injection and subsequent imaging, further extends the examination duration.

Typical Examination Times

While providing exact durations is impossible due to the variability mentioned above, a basic MRI scan may range from 15 to 90 minutes. More complex examinations can extend beyond two hours.

Pre-Examination Preparations

Patients should be informed about the necessity of remaining still throughout the procedure. Depending on the body part being imaged and the chosen protocol, specific pre-examination preparation instructions may be provided (e.g., fasting, medication adjustments).

Post-Examination Considerations

Upon completion, radiologists analyze the acquired images to generate a report for the referring physician. The turnaround time for this report varies depending on factors such as the complexity of the examination and the workload of the radiology department.