Keyword Analysis & Research: mri imaging

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How does a MRI take an image?

MRI uses magnetic fields to produce images, while CT uses ionising x-rays, hence the same structure will appear different in the corresponding images, even in scans of the same subject. Both modalities can be used to image a variety of structures, with MRI providing better imaging of soft-tissue, and CT providing better imaging of bones 3.

Is MRI better than mammography?

A mammogram has slightly better specificity than an MRI (75 percent), mainly because it can detect calcification (the characteristic deposit of calcium around a malignancy) that can help differentiate benign and cancerous tumors.

How are MRI images produced?

Magnetic resonance imaging (MRI) is a scanning procedure that uses strong magnets and radiofrequency pulses to generate signals from the body. These signals are detected by a radio antenna and processed by a computer to create images (or pictures) of the inside of your body.

How is a MRI image made?

MRI images are formed when signals, emitted by body tissue, are processed by software and turned into clinical images. These signals are generated using a safe magnetic field in combination with radio waves of a specific frequency.


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