RT Book, Section
A1 Kattapuram, Susan V.
A1 Kamath, Ravi S.
A2 Imboden, John B.
A2 Hellmann, David B.
A2 Stone, John H.
SR Print(0)
ID 57275964
T1 Chapter 65. Musculoskeletal Magnetic Resonance Imaging
T2 CURRENT Diagnosis & Treatment: Rheumatology, 3e
YR 2013
FD 2013
PB The McGraw-Hill Companies
PP New York, NY
SN 978-0-07-163805-0
LK accessmedicine.mhmedical.com/content.aspx?aid=57275964
RD 2024/04/19
AB Magnetic  resonance  imaging  (MRI)  relies  on  the  intrinsic  spin  of  protons,  each  of  which  has  a  magnetic  moment.  Protons  tend  to  align  their  magnetic  poles  along  the  direction  of  a  magnetic  field.  When  protons  are  placed  in  a  magnetic  field,  they  can  also  absorb  and  then  reemit  electromagnetic  radiation  in  the  form  of  radiofrequency  signals.  Nuclei  absorb  energy  from  radiofrequency  pulses  and  may  resonate.  This  resonance  induces  orientation  to  the  magnetic  field;  the  required  frequency  of  the  pulse  is  determined  by  the  strength  of  the  magnetic  field  and  the  chemical  properties  of  the  target.