Clinical Applications and Indications of Magnetic Resonance Imaging MRI

Abstract

Magnetic resonance imaging MRI is an imaging technique to produce high resolution tissue contrast images of the human body. It was first demonstrated by Paul Lauterbur in 1973. MRI is a safe diagnostic procedure that uses a powerful magnet and radio waves to produce detailed images of the body's organs and structures, without the use of Xrays or other radiation. Hydrogen atom nuclei which make the human body approximately 63% have a source MR signal. MRI is widely used to imagine and diagnose pathologic conditions in all over the human body, especially central nervous system, musculoskeletal system, head and neck, abdomen and pelvis. MRI is often preferred as a fast and noninvasive diagnostic modality for examination of the vascular MR-Angiography , pancreatico-biliary MRCholangiopancreaticography , and urinary systems MR-Urography . MRI can be also helping physicians evaluate the function as well as the structure of many organs with spectroscopy, diffusion, perfusion images. In this review; clinical application and indications of MRI and the radiologic algorithms have been presented with our sample cases

Keywords

• Magnetic resonance imaging,brain,spine,abdomen,functional imaging

Magnetik Rezonans Görüntüleme Mrg ’Nin Klinik Uygulamaları Ve Endikasyonları

Abstract

Magnetik rezonans görüntüleme MRG insan vücudunun yüksek kontrast çözünürlükte görüntülenmesine olanak sağlayan bir görüntüleme tekniğidir. İlk kez 1973 yılında Paul Lauterbur tarafından gösterilmiştir. MRG güçlü bir magnet ve radyo dalgaları ile X-ışını veya diğer radyasyonları kullanmadan vücudun organ ve yapılarını detaylı görüntülenmesini sağlayan güvenli bir tanısal uygulamadır. İnsan vücudunun yaklaşık %63’ünde yer alan hidrojen atom çekirdekleri MR sinyalinin kaynağını oluşturur. MRG, özellikle santral sinir sistemi, kas-iskelet sistemi, baş-boyun, batın ve pelvis olmak üzere insan vücudunun hemen her yerinde görüntüleme ve patolojik durumların teşhisi için yaygın olarak kullanılmaktadır. MR aynı zamanda vasküler MR-Anjiografi , pankreatiko-biliyer MR-Kolanjiopankreatikografi ve üriner MR-Ürografi sistemlerin incelenmesinde hızlı ve noninvaziv bir tanısal cihaz olarak sık sık tercih edilmektedir. MRG; spektroskopi, difüzyon, perfüzyon görüntülerle pek çok organın yapısal durumu yanında fonksiyonunun da değerlendirilmesinde hekimlere yardım edebilir. Bu derlemede, MRG’nin klinik uygulamaları, endikasyonları ve radyolojik algoritmalar, vakalarımızdan örneklerle sunulmuştur

Keywords

• Magnetik rezonans görüntüleme,beyin,omurilik,batın,fonksiyonel görüntüleme

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