What Do You Know About MRI and Tattoos?

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Do You Know About Phased Array M RI Coils?

By: Vikki Harmonay

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• For the past 25 years the design and configuration of array coils have evolved.

• The focus has been all about providing a better MRI user experience. But what exactly is phased array MRI coil technology? Sometimes referred to as just array, it’s a type of MRI coil that allows parallel imaging.

• It is a receive-only radio frequency coil system that receives the radio frequency signal in MRI. It involves the collection of multiple surface coils into a larger array.

These individual signals are then combined to create one image.

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• These multi-channel coils for MRI of the head, neck, shoulder, torso, wrist and beyond provide a receiver for each channel.

• They are available for both closed and open MRI systems.

• You can have a 4, 8, 16, 32, 64 or 128 channel system, with each increasing the number of receiver channels over traditional MRI coils.

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Why Use a Phased Array MRI Coil?

• That’s easy. It’s all about speeding up scan time.

• Very sophisticated MRI scans can take a very long time. However, with multiple channels, the scans can be performed 4-16 times faster. So, a scan that normally would take 60 minutes could take as little as 15—which provides a much better patient experience.

• With many MRIs, a patient is instructed to stay perfectly still and hold their breath for short periods of time. With quicker scan times, the patient can be more comfortable and less stressed.

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The goal? More signal and less noise.

• The ratio of signal to noise is used to evaluate coil performance and image quality.

• By using multi-channel technology, signal is increased, resulting in less noise and better scan quality.

• It’s true, you can also increase signal by using a 3T MRI system, but it’s much more economical to just purchase some multi-channel coils to use with your 1.5T scanner.

Who doesn’t like to save money?

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Patient comfort is key • When all the receiver channels are imaging at once, larger portions of the body are covered in each pass.

• This saves time and improves the patient experience—especially when doing spine work and vascular studies on legs.

• If you want to get more out of a magnet without having to buy an entirely new system, upgrade your MRI coils! It will save money and improve patient experience.

• Furthermore, by using multi-channel coils, you can potentially use MRI to replace the use of CT in some situations, since the MRI scans will be fast like CT but without the high-radiation dose.

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6. Free MRI Resources

You can read this on our website https://info.atlantisworldwide.com/blog/what-youneed-to-know-about-phased-array-mri-coils

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