القائمة الرئيسية

الصفحات

 

MRI technique:

MRI technology is incredibly complicated and lots of books are written concerning it. it's so not possible todebate everything thoroughly. This course focuses on sensible tomography data. the primary half can in brief address the underlying technology. Then some unremarkably used terms and tomography examinations are going to be reviewed. The course concludes with a table outlining the reviewed tomography sequences. MRI Indications MRI stands for resonance Imaging and relies on the resonance of element protons. Especially minor distinction deviations in soft tissues within the body are often imaged effectively mistreatment tomography. so tomography is healthier at visualizing soft tissue pathology than CT scan. Almost something is often imaged with the tomography scanner. The list of indications is long and continues to elongate with new technical developments. the subsequent is an overview to offer you some plan of the applications of tomography. MRI Technical Background Excitation Relaxation Excitation The element nucleon is that the commonest atom in our body and may be found in substances together with water (body consists of> seventieth of water) and fat. element protons area unit electrically charged (H+) and should be thought to be very little magnets with a North Pole & South Pole. This makes element protons at risk of external magnetic fields. Each nucleon rotates 360° around its own axis (like a spinning top) and contains a positive and negative pole. to know tomography technology, you would like to remember that every nucleon spins with a particular speed, the supposed Larmor frequency. Attributable to its spin, the nucleon frequently changes ‘phase’ (each part could be a pic because it was). The connexion of this part of the nucleon is going to be explained later within the course.