摘要: The discipline of radiology owes its existence today to the discovery bands radiation in electromagnetic spectrum which can penetrate human tissue, and thus be exploited as windows for imaging. Magnetic resonance (MR) employs radio-frequency almost certainly represents final such window It is similar Computerised Tomography (CT) providing a cross-sectional display body anatomy with excellent resolution soft tissue detail. images are essentially map distribution density hydrogen nuclei parameters reflecting their motion cellular water lipids. total avoidance ionizing radiation, lack known hazard penetration bone air without attenuation, make it particularly attractive non-invasive imaging technique.
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