Manyetik Rezonans Görüntüleme Fizik Temelleri ve Sistem Bileşenleri

Yıl 2019, Cilt: 2 Sayı: 2, 57 - 65, 01.04.2019

Zeynep Yüksel

Öz

Manyetik
rezonans görüntüleme (MRG), fiziğin temel ilkelerinden yola çıkarak doku
farklılıklarından kaynaklı görüntü elde edilmesi prensibine dayanan tıbbı
görüntüleme tekniğidir. Hem görüntünün elde edilmesi sürecinde hem de manyetik
rezonans cihazının yapısal bileşenlerinin üretimi ve çalışması sürecinde
fiziğin temel ilkeleri önemli rol oynamaktadır. Bu derlemede, MRG’nin
tarihinden kısaca bahsedilerek, görüntülemenin temelinde yatan fiziksel
prensipler anlatılmıştır. Bu anlatılanlar ışığında MR cihazının temel yapısal elemanları
tanıtılarak her bir sistem bileşenin nasıl çalıştığı ifade edilmiştir.

Anahtar Kelimeler

MRG, Fizik, MR cihaz bileşenleri, Larmor frekansı, RF, Gradiyent sargılar

Magnetic Resonance Imaging Principles of Physics and System Components

Öz

Magnetic
resonance imaging (MRI) is a medical imaging technique based on the principle
of obtaining images from tissue differences using the basic principles of
physics.  The basic principles of physics
play an important role both in the process of obtaining the image and in the
process of production and operation of the components of magnetic resonance
device. In this review, the history of MRI was briefly mentioned and the
underlying physical principles of imaging were explained. Then, the basic
structural elements of the MR device have introduced and how each system
component works. 

Anahtar Kelimeler

MRI, Physics, MR device components, Larmor frequency, RF, Gradiyent coils

Kaynakça

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