
Excess Of MRI Compared To CT Scan
There are some excesses of MRI compared to inspection with CT scan
- The MRI is best than CT scan to detect some disparities soft tissue like brain, bone marrow and also musculoskeletal.
- Can give the image of anatomy detail and clearer.
- Can work to functional inspection like inspection of diffusion, spectroscopy and perfusion which cannot be done with CT scan.
- Can make the image of cross section, straightening, and heel without changing patient position.
- MRI does not use ionizing radiation.
Procedure and Technique of Inspection
In the inspection of MRI require to be paid attention that appliances like oxygen tube, appliance of resuscitation, wheel chair, etc, that having the character of ferromagnetic may not be brought to room of MRI. For the safety, patient obliged wear special clothes and takes off object of ferromagnetic, like: hand watch, lock, ornament of hairpin, store teeth and other. Screening and giving of information with interview, to know do there is something that endanger patient, for example: patient use appliance peacemaker, metal in patient body like IUD, spurious joint, neurostimulator, and clip of aneurism cerebral, and others.
Patient transfer go to room of MRI, especially patient which do not earn to walk (non ambulatory) more complex compared other. This matter because magnetic field plane of MRI always in a state of “ on” so that every moment earn happened risk of accident, where objects of ferromagnetic can interest and possibility accidence to personnel or patient. One of solution is the desk of inspection made to mobile, So, patient can immediately brought out room of MRI if accident is happened. Despite that,. the reserve desk require to be provided, to be more fast to next patient inspection. Effort for safety of patient must given with Earplugs for patient to lessen noise, prop of knee, blanket for patient and head cover.
For the preparation of execution of inspection require to be done some procedure. Preparation patient identity program like what is the name, age and others, arranging position sleep patient as according to object to be checked. Choosing coil type to be utilized, for example for the inspection of head used by Head coil, for the inspection, backbone and foot used Surface coil. Choosing precise parameter for example, the image of anatomy selected by parameter which is short Repetition Time and Short Echo Time, so that tissue image with high hydrogen concentration will be black. For the image of pathologist selected by parameter which is Long Repetition Time and Long Echo Time, so the image of dilution of cerebra spinals with high hydrogen concentration will be white. For the contrast of image boundary, selected by parameter which is long repetition time and short echo time, so that the image of networks with high hydrogen concentration will be grey.
Text Box: Media of Health Research and Development , Volume of XIV Number 3 Year 2004: 9
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