great neck radiology phone number
great neck radiology
Normally the water molecules in our bodies are randomly arranged, but upon entering an MRI scanner, the first magnet causes the body’s water molecules to align in one direction, either north or south. The second magnetic field is then turned on and off in a series of quick pulses, causing each hydrogen atom to alter its alignment and then quickly switch back to its original relaxed state when switched off. The magnetic field is created by passing electricity through gradient coils, which also causes the coils to vibrate, resulting in a knocking sound inside the scanner.
Normally the water molecules in our bodies are randomly arranged, but upon entering an MRI scanner, the first magnet causes the body’s water molecules to align in one direction, either north or south. The second magnetic field is then turned on and off in a series of quick pulses, causing each hydrogen atom to alter its alignment and then quickly switch back to its original relaxed state when switched off. The magnetic field is created by passing electricity through gradient coils, which also causes the coils to vibrate, resulting in a knocking sound inside the scanner.
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