{"product_id":"9783540779995","title":"Clinical MR Imaging and Physics: A Tutorial","description":"\u003ch1\u003eClinical MR Imaging and Physics: A Tutorial\u003c\/h1\u003e \u003ch2\u003eChrysikopoulos, Haris S.\u003c\/h2\u003e \u003cp\u003eKeywords Spin › Electromagnetic radiation › Resonance › Nucleus › Hydrogen › Proton › Certain atomic nuclei possess inherent magnetic Let us summarize the MRI procedure. Te patient properties called spin, and can interact with electro- is placed in a magnetic feld and becomes temporarily 1 magnetic (EM) radiation through a process called magnetized. Resonance is achieved through the - resonance. When such nuclei absorb EM energy they plication of specifc pulses of EM radiation, which is proceed to an excited, unstable confguration. Upon absorbed by the patient. Subsequently, the excess - return to equilibrium, the excess energy is released, ergy is liberated and measured. Te captured signal producing the MR signal. Tese processes are not is processed by a computer and converted to a gray random, but obey predefned rules. scale (MR) image. Te simplest nucleus is that of hydrogen (H), con- Why do we need to place the patient in a m- sisting of only one particle, a proton. Because of its net? Because the earth’s magnetic feld is too weak to abundance in humans and its strong MR signal, H be clinically useful; it varies from 0. 3–0. 7 Gauss (G). is the most useful nucleus for clinical MRI. Tus, foC r urrent clinical MR systems operate at low, mid or our purposes, MRI refers to MRI of hydrogen, and for h igh feld strength ranging from 0. 1 to 3.\u003c\/p\u003e \u003ch3\u003eDetails\u003c\/h3\u003e \u003cp\u003ePublished by: Springer\u003c\/p\u003e \u003cp\u003ePublication Date: 2008-11-20\u003c\/p\u003e \u003cp\u003eFormat: Paperback\u003c\/p\u003e \u003cp\u003eISBN-13: 9783540779995\u003c\/p\u003e \u003cp\u003eDOI: 10.1007\/978-3-540-78023-6\u003c\/p\u003e \u003cp\u003eDimensions: 276cm x203cm\u003c\/p\u003e \u003cp\u003ePages: 176\u003c\/p\u003e ","brand":"Springer Berlin Heidelberg","offers":[{"title":"Default Title","offer_id":44541712466060,"sku":"9783540779995","price":49.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9545\/1788\/files\/9783540779995.jpg?v=1775762043","url":"https:\/\/fh90cf-fv.myshopify.com\/products\/9783540779995","provider":"Late Knight Books and Services, LLC","version":"1.0","type":"link"}