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MRI (Magnetic Resonance Imaging)

Magnetic resonans imaging (MRI) is an imaging technique used for high quality images of the body's organs and soft parts.

The human body is primarily fat and water. Fat and water have many hydrogen atoms which make the human body approximately 63% hydrogen atoms. Protons in the hydrogen atoms possess a property called spin, which can be thought of as a small magnetic field.

Magnetic resonance imaging is based on the absorption and emission of energy in the radio frequency range of the electromagnetic spectrum and uses the spatial variations in the energy's phase and frequency from the illustrated object. By means of the spectroscopic MR technique it is possible to get chemical microscopic information about the molecules.

Traditional x-ray images show bone tissue, not cartilage tissue. It is often the quality and the quantity of cartilage tissue that decide whether joint preservation or joint compensatory surgery is possible. Therefore, the MR technique gives important information to orthopaedic surgeons.

When performing joint preservation operations such as Ganz osteotomy for the treatment of hip dysplasia, it is advantageous to examine the thickness of the cartilage in the articulated surfaces. This should be done before the operation and in the years following the operation in order to estimate whether the development of osteoarthritis continues.

MRI does not cause radiation impact, which is a great advantage, but because of the magnetic resonance not all patients can go through this examination and orthopaedic surgical osteosyntheses or prosthesis can make up a contra indication for MR.

 
Contact
Contact Inger Buur Mechlenburg for further information.
 
Kalender

Publikationer
Hip displacements and correctable scoliosis were prevalent in children with cerebral palsy registered in a Danish follow-up programme from 2010 to 2020.
Krarup LH, Kristensen PK, Stisen MB, Nordbye-Nielsen K, Mechlenburg I.
Low-load exercises with concurrent blood flow restriction as rehabilitation for unspecific knee pain to a former American football player: A case report
Mechlenburg I, Nielsen TG, Kristensen N, Bentzen A, Jørgensen SL.
Football players with hip dysplasia: The relationship between muscle strength, functional performance, self-reported sport and recreation, cartilage defects and sex. A cross-sectional study
O'Brien MJM, Kemp JL, Semciw AI, Mechlenburg I, Jacobsen JS, King MG, Scholes MJ, Lawrenson PR, Crossley K, Agricola R, Souza RB, Heerey J.
 Ortopædkirurgisk Forskning Aarhus Universitetshospital Palle Juul-Jensens Boulevard 99 Indgang J 8200 Aarhus N Tel: +45 7846 7471 
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